1. Polyurethane glue for expansion joint 2. Popular construction adhesive 3. Excellent waterproof sealant 4. ... , no need of mixing3.Easy for applying for expansion joint4.Highly elasticity and low modulus.5.Excellent durability, weathering resistance..6 ... dust, grease, frost, water, dirt, old sealants and any protective coating. Dust and loose particles should be cleaned. DATAModel NumberPU 822Main ...