FB 70 is a flexible polyurethane-based mortar. It is presented in the form of two components pre-dosed in the factory: a resin part and a hardener part.
The FB70, based on polyurethane, is designed to provide a flexible waterproofing layer between the support and an antacid covering, 2 to 3 mm thick. Due to its high flexibility, it absorbs shear forces between the concrete subfloor and the covering in case of structural deformation or thermal expansion. It can be used for both new construction and repairs. FB70 must be covered with a hard protection: tile or resin flooring.
The use of FB 70 is recommended for rooms on floors, subject to chemical aggression, etc…