Kerabond T
Cementitious adhesive with no vertical slip for ceramic tiles and mosaics, on floors and walls, indoors and outdoors.
Supplied by SARP & LAB, the only authorised MAPEI distributor in Albania.
Where it is used
- Ceramic tiles and mosaics of all types on floors and walls, indoors and outdoors
- Paper-faced or mesh-backed mosaics, quarry tiles, single-fired and klinker tiles
- Conventional renders and cement mortar walls
- Cement screeds, of damp-earth consistency or self-levelling
- Gypsum substrates and anhydrite screeds, when dry and first treated with a primer such as Primer G or Eco Prim T Plus
- Mixed with Isolastic: foamed concrete walls, pre-cast or cast concrete, underfloor heating, large-size tiles, glass mosaics, and stable, moisture-proof stone
Why Kerabond T
- Thixotropic: can be applied vertically without dripping or tiles slipping
- Mixed with Isolastic instead of water, it improves to class C2ES2
- Hardens without noticeable shrinkage
- Supplied in white and grey
- Certified EC1 Plus: very low emission of volatile organic compounds
- Contributes to obtaining LEED credits
How it is applied
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Prepare the substrate
It must be cured, mechanically strong, sufficiently dry and free of loose particles, grease, oils, paint and wax. In spring and summer, cure renders for at least one week per cm of thickness and cement screeds for at least 28 days, unless made with MAPEI binders such as Mapecem, Mapecem Pronto, Topcem or Topcem Pronto. Treat dry gypsum and anhydrite with Primer G or Eco Prim T Plus.
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Mix
Mix with clean water, approx. 25-27 parts per 100 parts by weight (approx. 6.3-6.8 litres per 25 kg), to a homogeneous, lump-free paste. Rest for 5-10 minutes and re-mix. The mix is workable for at least 8 hours.
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Spread
Spread a thin layer with the smooth side of the trowel, then immediately apply the required thickness with a notched trowel suited to the tile. Use double-buttering for tiles with a side over 30 cm outdoors, large formats with a side over 60 cm, underfloor heating, floors to be sanded on site or under heavy loads, swimming pools and water tanks.
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Lay the tiles
There is no need to wet the tiles; wipe very dusty backs in clean water. Press firmly. If a skin has formed on the adhesive, retrowel it, and do not wet it. Adjust tiles within 45 minutes.
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Protect
Protect from washout and rain for at least 24 hours, and from freezing and direct sun for at least 5-7 days.
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Grout and seal
Grout wall joints after 4-8 hours and floor joints after 24 hours with MAPEI cementitious or epoxy grouts. Seal expansion joints with MAPEI sealants.
Technical data
| Classification (EN 12004, ISO 13007-1) | C1T; C2ES2 if mixed with Isolastic |
| Mix ratio | 100 parts Kerabond T with approx. 25-27 parts by weight of water |
| Pot life | over 8 hours |
| Application temperature | from +5°C to +40°C |
| Adjustability time | approx. 45 minutes |
| Grouting | walls after 4-8 hours · floors after 24 hours |
| Light foot traffic | 24 hours |
| Ready for use | 14 days |
| Adhesion strength, initial (after 28 days) | 1.4 N/mm² |
| Adhesion strength after heat · water immersion · freeze-thaw | 0.8 · 0.9 · 1.2 N/mm² |
| Temperature resistance after final cure | from −30°C to +90°C |
| Consumption | 2-5 kg/m² |
| Packaging | 25 kg paper bags, white and grey |
| Storage | 12 months in a normal environment and original packaging |
Source: MAPEI technical data sheet 78-8-2026; typical values. Check the current data sheet before use. Product page at MAPEI
Application precautions
- Do not use on wood and wood conglomerates, gypsum board walls, or metal, rubber, PVC and linoleum surfaces
- Not for tiles that need an adhesive layer more than 5 mm thick
- Not where the surface must take light foot traffic rapidly
- Not for non-absorbent tiles (porcelain, single-fired, klinker, etc.) on other non-absorbent wall and floor substrates
- Not on floors and coverings subject to strong movement or vibrations
- Never add water to the mix once it has started to set
Product for professional use.
Used together with
Frequently asked questions
How much do I need per m²?
Consumption is 2-5 kg/m². A 25 kg bag therefore covers approximately 5 to 12 m².
Can it be used outdoors?
Yes, on floors and walls, indoors and outdoors. For tiles with a side over 30 cm outdoors, use the double-buttering technique.
When should it be mixed with Isolastic?
On foamed concrete walls, pre-cast or cast concrete, underfloor heating, with large-size tiles, for glass mosaics, and for stone that is stable and moisture proof. Mixed this way it meets class C2ES2.
Which surfaces is it not suitable for?
Wood and wood conglomerates, gypsum board walls, metal, rubber, PVC and linoleum, and floors and coverings subject to strong movement or vibrations.
When can the floor be walked on?
Floors take light foot traffic after approx. 24 hours and are ready for use after approx. 14 days.
Is there a warranty?
If required, MAPEI can provide a warranty for each product it sells. Contact us about your case.