The Hyperseal 25LM-S is a polyurethane sealant for sealing expansion joints. It contains polyurethane technology combined with hybrid technology, resulting in a sealant with exceptional capabilities.

It polymerizes through reaction with atmospheric moisture and produces a sealant with low elasticity (50% joint movement accommodation factor). It has excellent adhesion to substrates traditionally difficult for polyurethane, such as glass, aluminum, polycarbonates, etc.

In addition, the material has been modified to have extrusion similar to that of hybrid and MS sealants.