Bonds To Concrete, Masonry, Wood, Metal, Stone, Mirror, Marble, Flashing, Tub Surrounds, Polystyrene And Polyurethane Foam, And More. Will Not Shrink, Crack Or Get Brittle. Superior Bond Strength. 1 To 2 Hours Tack-Free Time Depending On Climate. 3 To 5 Days Final Cure.