The joint compound from CertainTeed is a pre-mixed vinyl based compounds that requires minimal mixing or thinning. It's part of The Best Mud in the Joint collection. In fact, it really is one of the most efficient products in its class : this 17 L bucket contains enough product to cover 300 sq. ft. This easy-to-apply drywall compound is suitable for taping and finishing of wallboard joints, corner, trims and fasteners. It provides good workability and low shrinkage for the 2nd and finish coats. It may also be used for patch and repair of plaster walls, skim coating and simple texturing. Plus, it's ready mixed to help you save time.