PU sealant is a polyurethane-based flexible sealing compound used to fill and permanently seal expansion joints, movement joints, construction joints, and gaps in concrete and masonry structures where the joint needs to accommodate structural movement without cracking or losing its watertight seal.
Rigid fillers crack when joints move. Polyurethane sealants don't — they cure to a flexible, rubber-like compound that stretches and recovers with every movement cycle the structure goes through. For expansion joints in floor slabs, facades, bridges, and water-retaining structures, this flexibility is what keeps the seal intact over the structure's service life.
ADT Industries stocks PU sealants from Sika, Fosroc, Dr. Fixit, and ESSRBOND — covering low-modulus, high-modulus, and hybrid polyurethane grades for different joint widths, movement ranges, and exposure conditions across India.
