Ready-mixed ceramic wall tile adhesive for interior use in dry and intermittently wet areas.
Constraints: Not suitable for floors, exterior use, or invery wet areas such as communal showers or pools. Not suitable for porcelain tiles.
Weberfix plus is a ready-mixed tile adhesive ideal for internal projects in wet and dry areas such as:
Bathrooms
Showers
Kitchens
Utility rooms
Suitable for application up to 3mm.
Features and benefits:
Water-resistant — suitable for use in intermittently wet areas
Extended open time of 30 minutes
Sets in 24 hours
High initial grab
Non-slip formula.
Preparation
Ensure that all surfaces are clean, dry sound, free from grease, dust or any other contaminating barrier, and capable of supporting the weight of tiling.
Make good any unsound areas before tiling. Remove flaking or peeling layers.
Prime dusty or porous surfaces with Weber PR360 and allow to dry before tiling.
Application
Do not use at temperatures below 5°C. Spread the adhesive onto the wall, rather than onto the tiles, using a suitable notched trowel. Do not spread an area larger than can be tiled in approximately 30 minutes. Larger or studded-backed tiles may also need to be buttered with adhesive.
Fix the tiles within 30 minutes of applying adhesive (less at elevated temperatures). If lightly pressed, the adhesive should still stick to the fingers. If not, then it should be removed and more applied. Firmly press the tiles into the adhesive bed, with a twisting or sliding action, leaving at least 2mm gaps for grout joints.
For dry areas, the contact area between the adhesive and tile must be at least 70%, uniformly over the whole tile. In intermittently wet areas, it is essential that there are no voids under the tiles. The final bed thickness should be no more than 3 mm.
It is good practice to occasionally remove a tile to check that the required contact is being achieved.
Remove any excess adhesive from the tiles and joints before it sets.
Ready-mixed adhesives gain strength on drying, so leave for a minimum of 24 hours, before grouting. On non-porous surfaces, leave for at least 3 days. These times should be extended in poor drying conditions such as when using larger tiles or tiling at low temperatures.
For wet areas, particularly commercial or where there is a power shower, an appropriate grout should be used to minimize water penetration. Leave for 2 weeks after grouting before using the shower.
Plaster
Tile onto a plaster finish coat. Leave new plaster for at least 4 weeks so that it will be strong enough to support the tiling weight. Plaster can support 20kg of tiling per m².
Plasterboard
Securely fix and brace all boards to ensure stability. They should be screwed, not nailed, at 300mm centres horizontally and vertically. Plasterboard can support 32kg of tiling per m².
Cement/sand render
Leave new surfaces to dry for at least 2 weeks before tiling.
Brickwork/blockwork
Leave new surfaces to dry for 6 weeks before tiling. Ensure that the surface is sufficiently flat. Lightweight blocks must be primed and are not suitable for very large tiles.
Plywood/fibre-particleboard/fibre reinforced cement sheets
Securely fix and brace all sheets and boards to ensure stability. They should be screwed (not nailed) at 300mm centres horizontally and vertically. Preferably, use exterior grade plywood and prime the front and reverse faces and edges with Weber PR360 to prevent distortion. Avoid very large tiles.
Existing ceramic tiling/paint
The surface should be clean, dry, sound and capable of supporting the expected loads. Any unsound areas should be removed and made good. Existing tiles must be firmly adhered. Existing paint should be resistant to water (e.g. not emulsion), lightly abraded on the surface and then any dust removed before tiling. Drying times will be significantly extended, therefore fixing large tiles is not advised.
| Coverage | 2kg/m² (dry areas) and 3.4kg/m² (wet areas) |
| Bed thickness | 1mm – 3mm |
| Open time | 30 minutes after spreading |
| Adjustment time | Approx. 20 minutes |
| Set time | Approx. 24 hours |
| Application temp. | +10°C - +35°C |
| Tools cleaning | Water |
| Packaging | 15kg plastic buckets |
| Storage | 12 months under normal conditions in its original, sealed packaging. |
Highly flexible gel adhesive 2-15 mm (C2TE type)
Unique gel technology
ATLAS GEOFLEX recipe contains an unique siliceous gel technology. The siliceous gel offers exceptional ability of water retention. It fills the pores formed at the stage of adhesive setting by the net of inorganic bindings. The accumulation of mixing water ensures full cement hydration, regardless the cladding type in use. Owing to the appropriate water management, which is necessary for the binding process completion, gel adhesive assures full adhesion to substrates of various absorptiveness level.
The use of siliceous gel technology gives the advantages:
Properties
Wide range of adhesive thickness 2-15mm enables:
- thin-coat cladding fixing on even substrates,
- thin-coat cladding fixing on uneven substrates, preceded by substrate floating,
- thick-coat cladding fixing on uneven substrates, with no need of substrate floating.
No cladding slip – enables fixing the cladding “from the top” with no need of support at the fixing stage.
Foot traffic and grouting just after 12 hours – owing to accelerated adhesive setting and drying process.
Use
Fixing ceramic and stone cladding - glazed tiles, terracotta, porcelain tiles, marble/natural stone, cladding insusceptible to discolouration, clinker, stone, ceramic mosaic, glass mosaic, glass tiles, concrete/cement tiles. If in doubt conduct an application test.
Fixing small, medium and large size claddings - small and medium size tiles (<0.1 m²), large size tiles (>0.25m²).
Fixing the cladding on horizontal and vertical surfaces, indoors and outdoors:
- in residential, public access, healthcare, commercial and service, sacral buildings,
- in kitchens, bathrooms, laundries, garages, showers, washes, rooms washed with plenty of water, on terraces, balconies, loggia, communication routes, in rooms of small and medium operational loads in any building type.
Fixing the cladding on standard substrates - cement screeds and mortars, anhydrite screeds, cement, cement-lime and gypsum plasters, walls made of cellular concrete, silicate brick or hollow blocks, ceramic brick or hollow blocks, floors made of wood, OSB, dry gypsum screed, steel, plastic substrates.
Fixing the cladding on deformable substrates or, so called, difficult substrates – concrete, terrazzo, elastic and rigid damp proofing (e.g. WODER S, WODER E, WODER W or WODER DUO), magnesium substrates, dry substrates made of gypsum boards, screeds (cement and anhydrite) with water and electric heating system or with heating mats embedded, gypsum blocks, plasters with wall heating system, plasterboards, gypsum-fibre boards, cement-fibre boards, existing ceramic and stone cladding (tile on tile), concrete resin lacquers bonded to the substrate, dispersion, oil paints bonded to the substrate, mineral, dispersion and reactive sealing coats, wooden floors (thick. >25mm), OSB/3, OSB/4 and chipboards (thick. >25mm on floors and >18mm on walls).
Substrate preparation
The substrate should be:
Adhesive preparation
Pour the adhesive from the bag into a container with the suitable amount of water (water/dry mix - 0.26-0.33L/kg or 6.5-8.25L/25kg) and mix, using a low speed mixer with a drill for mortars, until homogenous. The dispersed adhesive should be left to rest for 5 minutes and then remixed. So prepared adhesive should be used up within approx. 4 hours.
Adhesive application
The adhesive should be applied onto the surface with a steel trowel and then distributed evenly and shaped (possibly in one direction) using a notched trowel. It is advisable to rub a thin adhesive coat first and then apply the thicker coat and shape it with a notched trowel. It is recommended to lead a notched trowel in one direction. On walls, it’s recommended to shape the adhesive in vertical direction.
Placing the tiles
After the application, the adhesive retains its properties for ca. 30 minutes (in temperature approx. 23°C and 55% humidity). Within this time, the tile must be placed and pressed well (the contact surface between the adhesive and the tile should be uniform and as large as possible – min. 2/3 of tile surface). Remove the excess of the adhesive pressed into the joints immediately. In case of floor tiles or tiling outdoors it is advisable to keep the full bonding surface (use the mixed method consisting in application of the adhesive on the substrate and tile bottom side, if needed). Keep the joint width appropriate for the tile size and operation conditions (check data in the sheets of ATLAS grouts).
Tile adjustment
The position of a tile can be adjusted with delicate moves along the bonding plane. It can be done within approximately 20 minutes since the tile is pressed (in temperature approx. 23°C and 55% humidity).
Grouting and cladding use
Foot traffic and grouting with ATLAS GROUT, ATLAS ARTIS GROUT, ATLAS DECORATIVE GROUT or ATLAS EPOXY GROUT can start after approx. 12 hours since the tiles fixing. The mortar reaches the operational strength after 3 days. Expansion joints, joints along the wall corners, at sanitary equipment, etc. should be filled with sanitary silicone ATLAS SILTON S or ATLAS ARTIS.
Consumption
Average consumption: approx. 1.5kg of dry mix / 1m² / 1mm adhesive layer – for complete filling the space beneath the tile. It depends on the smoothness of the surface and the bottom side of the tile.
| Colour | White |
| Mixing ratio (water/dry mix) | 0.26-0.33L/kg or 6.5-8.25L/25kg |
| Coverage | approx. 1.5kg of dry mix / 1m² / 1mm adhesive layer |
| Bed thickness | 2-15mm |
| Maturing time | 5 minutes |
| Working time (pot life) | approx. 4 hours after mixing |
| Open time | min. 30 minutes |
| Adjustability time | 20 minutes |
| Floor access/grouting | after 12 hours |
| Full operation load - foot traffic | after 3 days |
| Full operation load - vehicle traffic | after 14 days |
| Floor heating (warm surface) | after 14 days |
| Application temp. | +5°C - +35°C |
| Tools cleaning | Water |
| Packaging | 25kg foil bag |
| Storage | 12 months under normal conditions in its original, sealed packaging. |
Weberset SPF is an extra flexible cement-based tile adhesive suitable for walls and floors in wet and dry areas when a standard setting time is required. Can be used on heated and plywood floors, as well as most wall substrates. Suitable for application thicknesses of 3-6mm.
A flexible, cement based tile adhesive for internal and external use. It is suitable for fixing all types of ceramic wall and floor tiles, mosaics, marble, terrazzo, natural stone, brick slips and glass blocks in areas that will be dry or wet, including swimming pools. It is particularly suited for situations where some movement, deflection or limited shrinkage is likely. Available in grey or white.
Uses
For fixing ceramic or porcelain tiles:
Walls and floors
Interior and exterior situations
Underfloor heating
Undertile warming
Overboarded wooden floors
Low porosity tiles or substrates
Power-floated screeds
Tiling onto existing tiles
Swimming pools.
Preparation
Ensure that all surfaces are clean, dry, soundand free from dust, grease or any contaminating barrier. Make good any unsound areas and remove flaky or peeling layers before tiling. Prime porous or dusty surfaces. WeberPR360 is normally recommended for most walls in dry areas. Eco Prim Grip is recommended for wood, wet areas and floors. Allow the primer to dry. Check before use that the colour of the adhesive does not cause staining or discolouration of light coloured or translucent tiles.
Mixing
Gradually add approximately 3.5 parts of powder to 1 part of clean water (measured by volume), and mix to a smooth, workable, stiff paste. Normal usage requires 4 litres of water per 20kg adhesive. Use within 60 minutes of mixing. Do not attempt to extend the pot life by adding more water to the mix.
Application
Do not use at temperatures below 5°C. Apply the adhesive onto the substrate covering up to 1m² at a time (or no more than can be tiled within 20 minutes). Use a suitable notched trowel to achieve a bed thickness of 3 to 6mm. Large or studded backed tiles may need to have adhesive buttered onto the tile back as well.
Bed the tiles firmly into the adhesive with a slight sliding and/or twisting action, to ensure a good contact.
It is good practice to lift an occasional tile after fixing, to verify that the required contact is being achieved.
In wet areas, external areas and all floors, the final adhesive bed should be free from voids. Leave appropriate clearance joints for grouting and make any adjustment within 10 minutes.
Carefully clean off any excess adhesive from the tiles and joints with a damp sponge or cloth before it sets.
Leave for at least 24 hours before grouting. Longer is required at lower temperatures or when tiling onto impervious or sealed surfaces. For swimming pools, leave at least 3 days before grouting and then a further 3 weeks before filling.
Brick and blockwork
Allow at least 6 weeks before tiling. Lightweight blocks need priming. Ensure that the wall face is sufficiently flat.
Cement/sand, render or screed
Allow at least 3 weeks for screed and 2 weeks for render before tiling. Priming maybe required if the surface is very dusty or porous.
Concrete
Allow at least 7 weeks before tiling onto new concrete. Surface should be clean and free from laitance – scabbling is recommended. Set time will be extended ondense or power floated screeds.
Existing ceramic/vinyl tiles
Ensure that the substrate is strong enough to take the weight of extra tiling, that the existing tiles are firmly adhered and that the surface is free from any wax or polish. Set time will be extended.
Plaster walls and anhydrite screeds
Leave plaster for at least 4 weeks before tiling. Ensure anhydrite screeds are fully dry (moisture content <0.5%). It is important that the surface is abraided and sealed by repeatedly coating with primer until the surface stops absorbing. For walls in dry areas use Weber PR360 otherwise use Eco Prim Grip.
Underfloor heating/undertile warming
The heating must be off and should be turned on gradually at least 5 days after tiling.
Wallboards: fibre/cement, plywood, plasterboard, MDF
The board must be securely braced and fixed with screws at least every 300mm. Prime the reverse face and edges of plywood with Eco Prim Grip before fixing.
Wooden floors
Ensure the floor is rigid and strong enough to support the expected load with only minimal deflection. Tongued and grooved timber and chipboard must be overboarded with exterior grade plywood at least 15mm thick. Plywood floors should be at least 18mm thick and all joints must be supported. New boards should be primed on the reverse face and edges. All boards must be screwed down every 300mm.
Allowance for movement
Flexible joints should be incorporated to allow for slight movements due to changes in temperature, humidity etc.:
a) Where the tiling meets other materials (e.g. floor perimeters)
b) Along all internal corners – vertically and horizontally
c) Over existing movement joints or changes in background material
d) Dividing large tiled areas into bays (every 3–4.5m on walls, 8–10m on floors)
| Colour | Grey / White |
| Water addition | 4 litres per 20kg |
| Coverage | 9kg/m² (solid bed, 6mm thick) 4.5kg/m² (solid bed, 3mm thick) 3.0kg/m² (using a notched trowel with 6x6mm notches at 12mm centres) |
| Bed thickness | 3 – 6mm (may be exceeded in small areas only) |
| Open time | 20 minutes |
| Working time (pot life) | 1 hour after mixing |
| Set time | 24 hours – light foot traffic, full load after 48 hours |
| Application temp. | +10°C - +35°C |
| Tools cleaning | Water |
| Packaging | 20kg paper bag |
| Storage | 12 months under normal conditions in its original, sealed packaging. |
High-performance cementitious adhesive with no vertical slip and extended open time for ceramic tiles and stone materials.
Where to use
Interior and exterior bonding of ceramic tiles (single-fired, double-fired, porcelain tiles, terracotta, klinker, etc.) stone materials and mosaics of every type on floors, walls and ceilings (cement or mortar wall renders, interior aerated concrete block walls, gypsum or anhydrite after having first applied Primer G, gypsum board, underfloor heated installations, cement screeds, as long as they are sufficiently cured and dry, interior painted walls, as long as the paint is firmly anchored, over MAPEI waterproofing membranes such as Mapelastic AquaDefense and Mapegum WPS). Also suitable for spot bonding of insulating materials such as expanded polystyrene, rock and glass wool, Eraclit™ (wood-cement panels), sound-deadening/reduction panels.
Technical characteristics
Keraflex is a grey or white powder composed of cement and graded aggregates. It contains a high quantity of synthetic resins and special admixtures created according to a formula developed in MAPEI’s research laboratories. A mortar with the following features is obtained when mixed with water:
Easily workable
Highly thixotropic: Keraflex can be applied on a vertical surface without slumping or letting the tiles slip, even for heavy tiles. Tiles can be installed from the top towards the bottom without using spacer pegs
Perfect adherence to all materials normally used in building
Hardens without appreciable shrinkage
Extended open time.
Preparing the substrate
The substrates must be flat, mechanically resistant, free of loose parts, grease, oils, paints, wax, etc. Damp substrates can slow down the setting of Keraflex. Cement substrates should not be subject to shrinkage after the installation of the ceramic tiles, therefore, during spring and summer, renders must cure at least one week for each cm of thickness and cement screeds must have an overall cure time of at least 28 days, unless they are made with special binders for MAPEI screed such as Topcem. Dampen with water to cool surfaces which have become heated from exposure to sunlight. Gypsum substrates and anhydrite screeds must be perfectly dry (max. residual moisture 0.5%), sufficiently hard and free from dust. It is absolutely essential that they must be treated with Primer G
Mixing
In a clean mixing container pour in 5.4-6.2 litres of clean water. Add the 20kg bag of Keraflex powder. Using an electric mix (approx 300RPM) mix until a smooth, lump-free paste is obtained. Leave the mix to rest for approximately 5 minutes and then re-stir. Mixed this way, Keraflex has a pot life of approximately 8 hours.
Spreading the mix
Keraflex is applied to the substrate using a notched trowel. Choose a trowel that allows for complete coverage of the tile back. To achieve a good adhesion, spread an initial thin layer of Keraflex on the substrate using the flat side of the trowel. Immediately after, apply the desired thickness of Keraflex using a suitable notched trowel, depending on the type and size of the tile. For external ceramic tile floors and walls, sizes greater than 900cm², floors subject to heavy loads, when applying in swimming pools and basins filled with water, spread also the adhesive on the back of the tiles in order to ensure a complete coverage.
Installing the tiles
There is no need to wet the tiles before installing them. Only with very dusty backs it is recommended to dip the tiles in clean water. Tiles should be installed under a firm pressure to ensure good coverage of the adhesive. In normal temperatures and humidity conditions, the open time of Keraflex is approximately 30 minutes. Unfavourable weather conditions (strong sun, wind, high temperatures, etc.) or a highly absorbent substrate can reduce the open time, even to just a few minutes. It is therefore necessary that careful checks be made to ensure that a skin does not form on the surface of the spread adhesive, which should stay fresh. If not, re-freshen the adhesive by re-spreading with a notched trowel. It is not recommended to wet the adhesive with water once a skin has formed because, instead of dissolving the skin, the water will form an anti-adhesive film. If necessary, tiles should be adjusted within 60 minutes of installation. Tiling installed with Keraflex must not be washed or exposed to rain for at least 24 hours and must be protected from frost and strong sun for at least 5-7 days.
Spot-bonding insulating materials
For spot-bonding sound-deadening or insulating panels, apply Keraflex with a trowel or a float.
Grouting and sealing
Wall joints can be grouted after 4-8 hours and floor joints can be grouted after 24 hours with the specific MAPEI cementitious or epoxy grouts, available in different colours. Expansion joints must be sealed with the specific MAPEI sealants.
Ready for use
Surfaces are ready for use after approx. 14 days. Swimming pools and basins can be filled after 21 days.
| Colour | Grey or White |
| Coverage | Approx 20kg bag covers 6 to 7.5m² with a square notched trowel 6x6x6mm and 4 to 5m² with a 6x10x6 mm square notched trowel. |
| Mixing ratio | 5.4-6.2 litres per 20kg bag |
| Open time | > 30 minutes |
| Adjustability time | 45 minutes |
| Ready for grouting on walls | after 4-8 hours |
| Ready for grouting on floors | after 24 hours |
| Set to light foot traffic | 24 hours |
| Application temp. | +5°C - +40°C |
| Tools cleaning | Water |
| Packaging | 20kg bags |
| Storage | 12 months in a dry place in the original packaging. |
Fast setting deformable adhesive S1 2-5 mm
Polymer technology
The polymer technology is used in the ATLAS PLUS recipe. Owing to the high content of redispersible polymer resins, the cement adhesive gets unique properties and offers the highest technical and operation parameters assuring long term durability. The presence of polymers ensures high bonding of any cladding to any substrate type, including, so called, difficult and critical ones. Owing to the interchange of the polymer network with the network of inorganic hydration cement bindings, the adhesive offers outstanding parameters. The use of fastsetting cement enables rapid growth of bonding and strength not later than 6 hours since the tiles fixing.
The use of the polymer technology gives:
Reinforcement with fibers
Properties
ATLAS PLUS EXPRESS is manufactured as a dry mix of high quality cement binder, aggregates and specially selected modifiers.
Highly flexible – deformability S1 – the permissible deflection of the set adhesive is within 2.5–5mm range (test according to PN-EN 12002).
Fast-setting – ensures rapid growth of strength parameters – very high early bonding enables walking on tiles and grouting just after 4 hours, and foot and vehicle traffic just after 1 day since the tiles fixing.
With improved bonding and durability – the actual bonding to concrete substrate after 28 days, also after thermal ageing, immersion in water, freeze and thaw cycles in standard conditions, is two times higher than the one required by the PN-EN 12004 standard.
Extended open time - allows placing the tiles even 30 minutes since the mortar application – it can be once applied onto larger surface and therefore minimize the time of work.
Reduced slip - enables fixing the cladding "from the top" – proper consistency and layer thickness eliminate the adhesive slip. Therefore one can tile from the wall top and avoid cut-to-size tiles on exposed wall zones.
Limits the influence of atmospheric conditions on the cladding installation correctness – enables quick and safe tiling in unpredictable atmospheric conditions. The optimum pace of work and reaching the operation parameters rapidly limit the risk of damage to the cladding installed indoors.
Recommended for fixing wall and floor tiles in individual construction, industrial, commercial, health care buildings, in nurseries and kindergartens, etc., anywhere where the quick progress of work and almost immediate possibility of the surface use is expected.
Use
Fixing ceramic and stone cladding of any type - glazed tiles, terracotta, porcelain tiles, clinker, ceramic mosaic, concrete and cement tiles, marble / natural stone cladding insusceptible to discolouration, glass mosaic and tiles, laminated tiles, composite panels, insulation and acoustic panels. If in doubt conduct an application test.
Fixing small, medium and large size claddings - small and medium size tiles (<0.1m²), large (<0.25m²).
Fixing cladding on horizontal and vertical surfaces, indoors and outdoors:
- in residential, public access, healthcare, commercial and service, sacral, industrial buildings,
- in kitchens, bathrooms, laundries, showers, washes, rooms washed with plenty of water, offices, warehouses, garages, communication routes, on balconies, terraces, loggias, facades (incl. ETICS systems), external stairs, infrastructure,
- technological tanks, pools, fountains, jacuzzi, balneotechnology (with no aggressive chemicals in use), sauna, SPA,
- in rooms of small, medium and large operation load,
Fixing cladding on standard substrates - cement screeds and mortars, anhydrite screeds, cement, cement-lime and gypsum plasters, walls made of cellular concrete, silicate brick or hollow blocks, ceramic brick or hollow blocks, gypsum blocks.
Fixing cladding on deformable substrates or, so called, difficult substrates – concrete, terrazzo, elastic and rigid damp proofing (e.g. WODER S, WODER E, WODER W or WODER DUO), magnesium substrates, dry substrates made of gypsum boards, screeds (cement and anhydrite) with water and electric heating system or with heating mats embedded, plasters with wall heating system, plasterboards, gypsum-fibre boards, cement-fibre boards, existing ceramic and stone cladding ("tile on tile"), concrete resin lacquers bonded to the substrate, dispersion, oil paints bonded to the substrate, mineral, dispersion and reactive sealing coats, wooden floors (thick. >25mm), OSB/3, OSB/4 and chipboards (thick. >25mm on floors and >18mm on walls), insulation and acoustic panels, metal, steel and plastic surfaces, mastic asphalt screeds. If in doubt conduct an application test.
Substrate preparation
The substrate should be:
Adhesive preparation
Pour the adhesive from the bag into a container with the suitable amount of water (water/dry mix) 0.21-0.23L/1kg or 5.25-5.75L/25kg and mix, using a low speed mixer with a drill for mortars, until homogenous. The dispersed adhesive should be left to rest for 5 minutes and then remixed. So prepared adhesive should be used up within approx. 1 hour.
Adhesive application
The adhesive should be applied onto the surface with a steel trowel and then distributed evenly and shaped (possibly in one direction) using a notched trowel. It is advisable to spread a thin adhesive coat first and then apply the coat of desired thickness and shape it with a notched trowel. It is recommended to lead a notched trowel in one direction. On walls, it’s recommended to shape the adhesive in vertical direction.
Installing the tiles
After the application, the adhesive retains its properties for approx. 30 minutes (in temperature approx. 23°C and 55% humidity). Within this time, the tile must be placed and pressed well (the contact surface between the adhesive and the tile should be uniform and as large as possible – min. 2/3 of tile surface). Remove the excess of the adhesive pressed into the joints immediately. In case of floor tiles or tiling outdoors it is advisable to keep the full bonding surface (use the mixed method consisting in application of the adhesive on the substrate and the back of a tile, if needed). Keep the joint width appropriate for the tile size and operation conditions (check data in the sheets of ATLAS grouts).
Tile adjustment
The position of a tile can be adjusted with delicate moves along the bonding plane. It can be done within approximately 10 minutes since the tile is pressed (in temperature approx. 23°C and 55% humidity).
Grouting and cladding use
Foot traffic and grouting with ATLAS GROUT, ATLAS ARTIS GROUT, ATLAS DECORATIVE GROUT or ATLAS EPOXY GROUT can start after approx. 4 hours since the tiles fixing. The mortar reaches the operational strength after 3 days. Expansion joints, joints along the wall corners, at sanitary equipment, etc. should be filled with sanitary silicone ATLAS SILTON S or ATLAS ARTIS.
Coverage
Average coverage: approx. 1.5kg of dry mix / 1m² / 1mm adhesive layer – for complete filling the space beneath the tile. It depends on the smoothness of the surface and the back side of the tile.
| Mixing ratio (water/dry mix) | 0.21 – 0.23L/1kg or 5.25-5.75L/25kg |
| Min/max adhesive thickness | 2-5mm |
| Maturing time | approx. 5 minutes |
| Pot life | approx. 1 hour |
| Open time | min 30 minutes |
| Adjustability time | approx. 10 minutes |
| Floor access/grouting | after approx. 4 hours |
| Full operation load - foot traffic | after 3 days |
| Full operation load - vehicle traffic | after 14 days |
| Full water load - pool/tank | after 14 days |
| Floor heating (warm surface) | after 14 days |
| Application temp. | +5°C - +25°C |
| Tools cleaning | Water |
| Packaging | 25kg bags |
| Storage | 12 months in a dry place in the original packaging. |
Weberset Rapid SPF is a rapid-setting, flexible, low-dust, cement-based floor and wall tile adhesive, available in light grey or white for interior and exterior use. It is used to fix all ceramic tiles, mosaic, quarry, terrazzo, terracotta, porcelain and natural stone in situations where somemovement or vibration is likely. Can be used on heated and plywood floors. Suitable for use at thicknesses of 3-6mm.
Features and benefits:
Fast setting tile adhesive — can grout after 2 hours.
Low Dust Technology - makes it more comfortable to use and reduces cleaning time.
Flexible adhesive for substrates subject to movement or expansion.
Suitable for ceramic, porcelain and natural stone.
Suitable for use as on internal and external tiling projects.
High grab — non-slip for walls and floors.
Preparing the substrate
Ensure that all surfaces are clean, dry, soundand free from dust, grease or any contaminating barrier. Make good any unsound areas and remove flaky or peeling layers before tiling. Porous or dusty surfaces should be primed using a suitable primer and allowed to dry. Check before use that the colour of the adhesive does not cause staining or discolouration of light coloured or translucent tiles.
Mixing
Gradually add approximately 4 parts of powder to 1 part of clean water (measured by volume), and mix to a smooth, workable, stiff paste (non-slip wall tiling requires 3.4 litres of water per 20kg of adhesive and for floor tiling, 4 to 5 litres). Use within 30 minutes of mixing. Do not attempt to extend the pot life by adding more water to the mix.
Application
Do not use at temperatures below 5°C. Apply the adhesive onto the substrate covering up to 1 m² at a time (or no more than can be tiled within 10 minutes). When using as a pourable adhesive, pour onto the floor and spread with a solid bed trowel. Use a suitable notched trowel to achieve a bed thickness of 3 to 6mm. Tiles with studded backs may need to have adhesive buttered onto the tile back as well. Bed the tiles firmly into the adhesive with as light sliding and/or twisting action, to ensure a good contact. It is good practice to lift an occasional tile after fixing, to verify that the required contact is being achieved. In wet areas, external areas and all floors, the final adhesive bed should be free from voids. Leave appropriate clearance joints for grouting and make any adjustments within 10 min. Carefully clean off any excess adhesive with a damp cloth or sponge from the tiles and joints before it sets. Leave for at least 2 hours before grouting. Longer is required at lower temperatures o rwhen tiling onto impervious or sealed surfaces. For swimming pools, leave at least 3 days before grouting and then a further 3 weeks before filling.
Brick and blockwork
Allow at least 6 weeks before tiling. Lightweight blocks need priming. Ensure that the wall face is sufficiently flat.
Cement/sand render or screed
Allow at least 3 weeks for screed and 2 weeks for render before tiling. Priming with Weber PR360 may be required if the surface isvery dusty or porous.
Concrete
Allow at least 7 weeks before tiling onto new concrete. Surface should be clean and free from laitance – scabbling is recommended.
Existing ceramic/vinyl tiles
Ensure that the substrate is strong enough to take the weight of extra tiling, that the existing tiles are firmly adhered and that the surface is free from any wax, polish or detergent.
Plaster walls and anhydrite screeds
Leave plaster for at least 4 weeks before tiling. Ensure anhydrite screeds are fully dry (moisture content <0.5%). It is important that the surface is abraided and sealed by repeatedly coating with Weber PR360 until the surface stops absorbing.
Underfloor heating/undertile warming
The heating must be off and should be turned on gradually at least 5 days after tiling.
Wallboards fibre/cement, plywood, plasterboard, MDF
Ensure boards are rigidly supported, clean, dry and free from dust. Plasterboard should be thoroughly primed with Weber PR360 until the surface stops absorbing. Prime the reverse face and edges of plywood with Weber PR360 before fixing.
Wooden floors
Ensure the floor is rigid and capable of supporting the expected load with minimal deflection. Brace any areas that need extra support with noggins between the joists. New WBP plywood floors should be a minimum of 18mm thick and all joints must be adequately supported. Tongued and grooved timber and chipboard must be over-boarded. Existing boards should be screwed down to joists with 2 screws at each end and another 2 wherever they cross joists/noggins. For small floors with no noticeable deflection 9mm plywood or suitable tile backer board can be used to provide a smooth surface to tile. If there is some limited deflection, a minimum of 15mm WBP plywood or equivalent tile backer board should be used to increase the rigidity of the floor. If there is still noticeable movement in the floor, another layer of plywood or tile backer board may be needed. New plywood boards should be primed on the reverse face and edges with Weber PR360 and screwed down every 200–300 mm. Slight gaps should be left between boards and at the perimeter for expansion. These should be filled with silicone sealant.
Allowance for movement
Flexible joints should be incorporated to allow for slight movements due to changes in temperature, humidity etc.:
a) Where the tiling meets other materials (e.g. floor perimeters)
b) Along all internal corners – vertically and horizontally
c) Over existing movement joints or changes in background material
d) Dividing large tiled areas into bays (every 3–4.5m on walls, 8–10m on floors)
| Colour | Grey or White |
| Coverage | Approximately 1.5kg of powder per m² for every 1mm of bed thickness. |
| Mixing ratio | 5 litres per 20kg for use as a pourable adhesive 4 litres per 20kg for normal floor tiling 3.4 litres per 20kg for non-slip wall tiling |
| Open time | 10 minutes |
| Working time (pot life) | 30 minutes |
| Set time | 2 hours – light foot traffic full load after 24 hours |
| Bed thickness: | 3 – 6mm (may be exceeded in small areas only) |
| Application temp. | +5°C - +30°C |
| Tools cleaning | Water |
| Packaging | 20kg bags |
| Storage | 12 months in a dry place in the original packaging. |
Cement-based rapid-setting adhesive for interior and exterior floor and wall installations of ceramic and porcelain tiles and non-moisture sensitive natural stone.
Where to use
Interior and exterior bonding of ceramic and porcelain tiles and mosaics and natural stone materials that are not sensitive to moisture. Use Mapeker Rapid-Set Flex White for the installation of light coloured natural stone. Spot bonding of insulating materials such as expanded polystyrene and polyurethane, gypsum board, glass and rock wool, wood-cement panels, formed-concrete blocks, sound-deadening panels etc.
Some application examples:
Rapid installation or renovation in areas subjected to pedestrian traffic.
Rapid repair work in bathrooms, showers, kitchens, terraces and balconies.
Installing marble and other natural stone not sensitive to moisture.
Rapid installation onto rigid plywood overlaid floors (min. 15mm ply).
Underfloor heating installations (suitably encapsulated).
Technical characteristics
Mapeker Rapid-Set Flex is a powder composed of a mixture of special cements, selectively-graded aggregates, synthetic resins and setting accelerators that develop high bond strength only 3 hours after setting. For this reason floor and wall installations can be completed very quickly. Floors can be walked on after only 3 hours and are ready for general traffic after 24 hours. Mapeker Rapid-Set Flex when hardened is frost-proof and water resistant.
Recommendations:
On walls or floors subject to flexing or vibration (wooden or cement-fibre boards, gypsum boards, cement boards etc.) use a highly flexible adhesive (for example Keraquick mixed with Latex Plus).
Mechanically abrade anhydrite screeds and prime with Primer G.
On gypsum boards use flexible adhesives (for example Keraflex).
On gypsum walls or gypsum plasters, apply a coat of Primer G before fixing with cement-based adhesives.
On metal surfaces use Keralastic.
For bonding expanded polystyrene insulating panels with a protective film use Mapegrip D2.
Plywood overlaid floors must use a minimum 15mm WBP or marine grade plywood and be fixed at maximum 300mm centres in all directions to provide a rigid substrate.
Not suitable for use on plywood direct to joists or for floating floors.
Preparing the substrate
Mapeker Rapid-Set Flex can be applied to all stable substrates that are free of oils, grease, waxes and that are sound and free of loose plaster, laitance and crazing. Damp cement screeds can noticeably prolong the setting time of Mapeker Rapid-Set Flex. Gypsum plasters must be perfectly dry (min. 4 weeks), sufficiently hard and free of dust. It is absolutely essential that they are treated with Primer G before applying Mapeker Rapid-Set Flex. In areas subject to extreme damp (showers etc.) Mapegum WPS should be used to waterproof the substrate.
Mixing
Mapeker Rapid-Set Flex should be mixed with clean water and stirred continuously until it becomes a smooth lump-free paste. It is preferable to use a mechanical mixer. The mix must be used within 15-20 minutes, after which it begins to set. A 20 kg bag of Mapeker Rapid-Set Flex should be mixed with about 4.6-5 litres of water. Allow the mix to stand for a few minutes then mix again briefly before applying.
Spreading the mix
Mapeker Rapid-Set Flex is applied to the substrate with a notched trowel to a max of 5 mm thick. When selecting the trowel, choose one that transfers the adhesive to at least 65% to 70% of the back of the tiles for interior dry walls and 100% coverage for floor areas, exterior and wet wall areas:
for mosaics up to 5x5cm, the MAPEI square-notched trowel No.4 is recommended;
for normal ceramic wall tiles in dry areas, the MAPEI V-notched trowel No.5 is recommended
for floors, use a trowel appropriate to tile size, substrate regularity etc. to achieve a solid bed fix
for very demanding applications such as exteriors subject to freezing, floors subject to loads, large-size tiles, Mapeker Rapid-Set Flex should also be applied to the backs of the tiles (back-buttering). Large format includes tiles over 30x30cm
for very absorbent substrates or during hot weather, the substrate should be dampened to extend the open time of the adhesive.
Installing the tiles
It is not necessary to wet the tiles before fixing; if, however, the backs are very dusty, they should be wiped over with a wet sponge. Mapeker Rapid-Set Flex’s open time in normal temperature and humidity is about 10 minutes; unfavourable weather conditions (strong sun, drying wind, high temperature), or a highly absorbent substrate will shorten this open time, sometimes to just a few minutes. For this reason, there must be constant checks to see whether the adhesive has formed a surface skin or is still fresh to the touch. Should a surface skin have formed, the adhesive should be removed and fresh adhesive applied. Do not wet the adhesive when it has formed a skin because, a non-adhesive film will be formed. Adjustment of the tiles, if necessary, should be carried out within 5-10 minutes after placing the tiles. Tiling fixed with Mapeker Rapid-Set Flex must not be subjected to washout or rain for at least 3 hours and must be protected from frost and strong sun for at least 24 hours after laying.
Grouting Tile joints can be grouted 2-3 hours after application with MAPEI products (Keracolor and Ultracolor Plus). If the joints need to have good chemical resistance or where hygiene is of importance, use Kerapoxy, a two-component acid-resistant epoxy grouting compound. Expansion joints to should be filled with Mapesil AC.
Spot-bonding insulating materials
Spot bonding to sound-deadening or insulating panels should be applied using a float or trowel, the trowel type and size to be determined by the flatness of the surface and the weight of the panels. In these cases, the open time must also be observed, bearing in mind that a few spots of adhesive on heavy panels may require temporary shoring which should then only be removed after the Mapeker Rapid-Set Flex has begun to set.
Consumption:
Ceramic-tiling mosaics and small size tiles (trowel no.4): 2kg/m²
normal size tiles (trowel no.5): 2.5-3kg/m²
large sizes, floors, exteriors (trowel no.6 or 10 or larger): 4-5kg/m⊃
Spot-bonding foamed materials etc.: 0.5-0.8kg/m²
gypsum wallboard, foamed concrete: 1.5kg/m²
full-bonding on rough surfaces: 2.5kg/m².
| Colour | Grey or White |
| Mixing ratio | 1 part of powder with 2.3-2.5 parts by weight of water |
| Pot life of mix | 20 minutes |
| Open time | 10 minutes |
| Adjustability time | about 5-10 minutes |
| Setting time | 45 minutes |
| Ready for traffic on dry support | 3 hours |
| Cure time on dry support | 24 hours |
| Grouting on dry support | 2-3 hours |
| Application temp. | +5°C - +40°C |
| Tools cleaning | Water |
| Packaging | 20kg bags |
| Storage | 12 months in a dry place in the original packaging. |
Two-component high performance flexible rapid set with high strength adhesive for the installation of ceramic, porcelain, natural and agglomerate stone. Ideal for heavy duty commercial and industrial applications, interior and exterior use, balconies, terraces and swimming pools. For use with underfloor heating systems.
Where to use
For bonding all kinds of interior and exterior ceramic tiles, conglomerate, artificial and natural stone and marble on walls or floors. For bonding rubber flooring for cement installations (stalk back or dove-tailed back) on all traditional substrates in interiors, exteriors and in environments subject to heavy traffic.
Some application examples:
Ceramic and vitreous mosaics, single-fired and double-fired ceramic tiles, terracotta, klinker, porcelain tiles, etc.
Reconstructed or artificial stones, natural stone (marble, granite, etc.) which require adhesives with fast drying times.
Bonded or unbonded cement screeds provided they are sufficiently cured.
Underfloor undertile heating installations.
Bonded or unbonded screeds in Mapecem, Mapecem Pronto, Topcem or Topcem Pronto.
Existing floors (ceramic tiles, natural stone, terrazzo tiles, etc.) after cleaning and degreasing. Because of its extraordinary bonding and fast-setting characteristics, Granirapid is particularly suitable for rapid re-tiling jobs or flooring that has to be ready for use within very short times (supermarkets, factories, malls, hospitals, airports, etc.).
Technical characteristics
Granirapid is a two-component adhesive composed of a special hydraulic and silica sand (part A) and a synthetic rubber latex (part B). Granirapid has particularly fast setting and hydration times so that floors are set to light foot traffic after 3 hours and completely cured after only 24 hours. Granirapid has very low shrinkage and excellent bonding characteristics making it suitable for most difficult substrates. Its mechanical properties make it resistant to impact, vibration, temperature changes, ageing and dilute chemical agents.
Do not use Granirapid!
On walls or floors subject to intense movement (chipboard or wood agglomerates, asbestos cement board, etc.).
On metal surfaces.
On artificial, conglomerate or natural marble subject to exceptional moisture movement, on green marble, certain sandstones and slates. Use Keralastic only.
Preparing the substrate
All substrates onto which Granirapid will be applied must be flat, mechanically strong, free from loose parts, grease, oil, paint, wax, etc. Cementitious substrates must not be subject to shrinkage after the installation of the tiles. During warm weather, renders must be cured at least 1 weeks per centimetre of thickness and cementitious screeds must be cured for at least 28 days, unless they have been made with special MAPEI binders for screeds such as Mapecem, Mapecem Pronto, Topcem or Topcem Pronto. Dampen the surfaces with water to cool down, if they should be too warm from exposure to direct sunlight. Gypsum substrates and anhydrite screeds must be perfectly dry (maximum residual moisture 0.5%), sufficiently hard and free from dust. It is absolutely essential that they are treated with Primer G.
Mixing
The Granirapid mix is obtained by mixing 25kg of part A with 5.5kg of part B (synthetic rubber latex). If possible, use a mechanical stirrer until a smooth mix is obtained. Always pour the powder part A into the latex part B. Pot life at +20°C is about 45 minutes, but higher temperatures may reduce this time.
Applying the mix
To achieve a good adhesion, first spread a thin coat of Granirapid onto the substrate using the straight edge of the trowel followed immediately with the correct thickness, using the most suitable notched trowel. The general principle to follow when selecting the right trowel is to choose one that gives a coverage to at least 65-70% of the back of the tiles for internal walls and light traffic areas and 100% coverage for heavy traffic areas and all external work. For mosaics up to 5x5cm MAPEI trowel No.4 or 5 is recommended (consumption 2.5-3kg/m²). For normal ceramic wall tiles MAPEI V. notched trowel No.5 is recommended (consumption 3.5-4kg/m²). For floors and any uneven surfaces or tiles with highly profiled ribs or lugs or large format tiles MAPEI V notched trowel No.6 is recommended (consumption 5-6kg/m²). For floors and very uneven surfaces or tiles with highly profiled ribs or lugs or large size tiles MAPEI square notched trowel No.10 is recommended (consumption 8kg/m²), or a Kerafloor trowel (up to 1cm thick). For particularly demanding applications such as exteriors subject to freezing, basins or swimming pools, floors subject to heavy loads or floors to be polished in situ, dove-tailed tiles, or tiles with large stalks or large format tiles, Granirapid should be applied to the back of the tiles (back-buttering). Large format tiles include those over 900cm² (30x30cm).
Installing the tiles
Open time in normal temperature and humidity conditions is about 20 minutes. Unfavourable climatic conditions (strong sun, wind, high temperature, etc.) or a highly absorbent substrate can reduce the time to just a few minutes. Careful checks have to be made to ensure that a skin does not form on the surface of the spread adhesive, which should stay fresh. Wetting the substrate before applying the adhesive helps to prolong open time. Should a skin form, the adhesive will have to be freshened up by re-spreading with the notched trowel. It is not advisable to wet the adhesive with water when a skin has formed because, instead of dissolving the skin, the water will often form an anti-adhesive film. Ceramic coverings laid with Granirapid must not be washed or exposed to rain for at least 3-4 hours and must be protected from strong sunlight for at least 12 hours after laying.
Installing the rubber
The installation of rubber with cement installations must be carried out by back-buttering. Butter with Granirapid, until saturated, the back of the slab and spread Granirapid on the substrate with a No.6 trowel. Apply the slab wet on wet and lightly twist.
Grouting Joints can be grouted after 3 hours with MAPEI cementitious or epoxy grouts, available in various colours. Expansion joints must be sealed with MAPEI sealants.
Polishing
Surfaces can be polished after 24 hours.
Light foot traffic
Floors are able to take light foot traffic after 3-4 hours.
Ready for use
Surfaces are ready for use after approximately 24 hours. Basins and swimming pools can be filled after 3 days.
Consumption:
Mosaics and small sizes in general trowel No.4: 2.5-3kg/m²
Normal sizes trowel No.5: 3.5-4kg/m²
Large sizes, exterior floors trowel No.6: 5-6kg/m²
Uneven tile backs and uneven surfaces, natural stones trowel No.10: 8kg/m² or more.
| Colour | Component A - Grey, Component B - White |
| Mixing ratio | Component A: 25kg / Component B: 5.5kg |
| Pot life of mix | 45 minutes |
| Open time | approx 20 minutes |
| Setting time | 2 hours |
| Grouting | after 3 hours |
| Set to light traffic | after 3-4 hours |
| Ready for use | after 24 hours (3 days for basins and swimming pools) |
| Application temp. | +5°C - +40°C |
| Tools cleaning | All tools should be cleaned with plenty of water before the adhesive sets. After setting, cleaning becomes very difficult, but can usually be helped by solvents such as white spirit or similar. |
| Packaging | Component A - 20kg, Component B - 4.4kg |
| Storage | Granirapid component A can be stored 12 months in original unopened packing in a dry place. Granirapid component B can be stored 24 months. Protect from frost. |
