Thermosphere Flexible S1 Tile Adhesive 20Kg For Electric Underfloor Heating Systems is ideal for ThermoSphere Membrane, Mesh, and Cable systems, as well as a variety of substrates, including plywood and chipboard.

With its rapid setting, S1 flexibility, it enhances adhesion and non-slip properties, perfect for natural stone, porcelain, and ceramic tiles. Suitable for indoor and outdoor use, it performs exceptionally well in wet areas. Apply with a bed thickness of 3–12mm for optimal coverage, with a 4.5m² area covered at 3mm thickness.

It sets quickly, allowing grouting or walking on the surface within four hours at 20°C. With a 60-minute pot life, it ensures easy application and exceptional durability, backed by EN 12004 Class C2FT S1 classification.