Chem semirigid

Moisture activated polyurethane chemical grout sealant used to control water infiltration in concrete

CHEM SEMIRIGID is a moisture activated polyurethane chemical grout sealant containing prepolymer isocyanates (MDI). CHEM SEMIRIGID is a single component,solvant free non toxic product which reacts with water to form a hydrophobic semi rigid and chemically resistant foam. Once the product has completed its reaction, the foam becomes a completely inert material. CHEM SEMIRIGID reacts rapidly with water and can expand up to 15 times its volume.