ZeloSeal Ik PU is a damp curing, one-component polyurethane construction high flexible sealant. The product has been designed to provide a non-slump elastomeric sealant ranging in width from 5 to 30 mm in concrete, masonry, metal, and a variety of other substrates. It cures atmospherically to generate a flexible elastomeric seal that can withstand continuous cyclic movement of up to 25% of the joint width as a total movement while providing good weathering qualities with good skin formation time and quick cure.