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High performance two-component polyurethane adhesives for ceramic tiles and stone material.


Keralastic and Keralastic T are 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).

Key Features

Open time: 50 minutes. Grouting: 12 hours. Set to light foot traffic: approx. 12 hours. Ready for use: approx. 7 days. Deformability: highly deformable. Colours: grey and white. Application: notched trowel n. 4 or 5. Storage: 24 months. Consumption 2.5-5 kg/m2. Packaging 5 and 10 kg units (A : B = 94 : 6 parts by weight). Keralastic Keralastic T are CE marked as declared in ITT certificates nº 25040320/Gi (TUM) and nº 25040471/Gi (TUM) respectively, issued by the Technische Universität München laboratory (Germany).


• 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 (class C of size stability according to MAPEI standards). • Bonding ceramic tiles and stone material on surfaces subject to vibrations and deflections.