PU sealant 1.one-part, white paste 2.muiti- ... use 4.310ml/tube Kafuter-Multi Purpose Polyurethane Construction Sealant& PU Sealant Characteristics: *One-part, fast cure, polyurethane sealant* ... the rust dust,water,oil,etc.2. Remove the cover and pierce the inner seal, and then cut the ... else become seriously, go to hospital Kafuter-General Purpose PU Sealant& Polyurethane Construction Sealant Adhesive