SealBoss® SwellCaulk TM is a single component, hydrophilic, gungrade waterstop. The product is formulated for sealing construction joints, pipe penetrations and other concrete joints of smooth and uneven surfaces. Material cures and swells in the presence of moisture or water thereby creating a compression seal. Curing time decreases with higher temperatures and greater relative humidity. SealBoss® SwellCaulk will cure in approximately 24 to 36 hours depending on ambient climate. The product is supplied in sausages or in cartridges. The product is for professional use.