The cure rate of TotalBoat ThickSet epoxy will vary across the mass and depth at which it is poured. For pours of 1/2"-1" in depth, the tack-free time is 4-8 hours @ 77°F, with a full cure time of 5-7 days. For pours that are less than 1/2", or cooler conditions, the tack-free time will be longer.