ICO Caulk X™ is a single component silicone sealant with a broad range of chemical resistance to acids, caustics and solvents under splash/spill conditions. It can withstand movement either in tension or compression of 50% provided proper expansion joint design is practiced. ICO Caulk X™ stays elastic down to -65°F. It bonds to concrete, metal, wood and plastic surfaces without use of a primer. It possesses excellent weatherability. Under normal atmospheric conditions, ICO Caulk X™ dries tack free in 2 hours and dries hard in 24 hours.