Description

Mapei Keralastic T – Two-component polyurethane adhesive

Mapei Keralastic T – Two-component polyurethane adhesive, high performance for use with ceramic tiles and stone material.  Keralastic T is a two-component, solvent and water free adhesives which are flexible and waterproof. They are made up of a polyurethane base (component A) and a special hardener (component B). On mixing the two components together, the result is a paste with the following properties:

• Good workability;
• Excellent durability and resistant to ageing;
• Perfect adhesion to all surfaces used in building;
• Hardens by chemical reaction without shrinkage (until it becomes highly resistant);
• High deformability;
• In the case of Keralastic T, highly thixotropic: it can be applied vertically without slump and without letting even heavy or large tiles slip. The slipping strength is in compliance with EN 1308.

Mapei Keralastic T Uses

Indoor and outdoor, bonding of wall and floor ceramic tiles, stone material and mosaics of all types on: screeds, renders, concrete, asphalt, wood, metal, PVC, reinforced polyester, asbestos-cement, gypsum, gypsum board, gypsum panels, etc.

Some application examples

• Bonding ceramic tiles, stone material and all types of mosaics in showers and on sheets used for prefabricated bathrooms.
• Bonding ceramic tiles and mosaics on wooden work surfaces or in kitchens in order to achieve a waterproof substrate.
• Bonding ceramic tiles, stone material and mosaics on balconies, external terraces domes or flat roofs subject to foot traffic.
• Bonding natural stones and reconstructed stone (marble of every type, slate, etc.) also subject to movement and size variation due to the absorption of water
• Bonding ceramic tiles and stone material on surfaces subject to vibrations and deflections.

Recommendations

• Do not use on very damp surfaces or where there is a risk of rising damp.
• The packs are pre-measured, therefore mixing errors are impossible. Do not use partial quantities. A wrong mixing ratio could cause damage during the curing process.
• Use the products in temperatures between +10°C and +30°C.
• In case of use on surfaces subject to continuous immersion in water, consult the Mapei Technical Services Department beforehand.
• Do not use Keralastic T to bond transparent glass materials.

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