Easily join, bond and caulk sections of epoxy resin laboratory tops and counters using this two-part epoxy cement! Simply mix parts A and B in equal portions and stir thoroughly for five minutes before applying. The mixture has a working life of 20 minutes, sets in 1-2 hours, and cures in 24 hours. Once cured, the substance can be sanded to blend with surface if needed. Package contains one pint each of parts A and B. Final color is black.