Thank you for posting your feedback. We are sorry to see your low star review on DAP Plaster of Paris. We are not clear as to the intent of your review, as you appear to be comparing two completely different formulas, with vastly different performance characteristics. Each of the product package labels communicate recommended uses, application guidance and performance characteristics. As a general rule, joint compound is designed and intended for use in the finishing of gypsum panel joints, nail heads and metal corner beads (thin "skim coating" applications, typically < 1/16”). Joint compounds are typically formulated to have a softer/wetter "feel", this permits thinner spreading and longer open time/working time. DAP Plaster of Paris (as with all similar Plaster of Paris formulas) are designed for rapid setting. Should you wish to discuss this, please contact DAP's Technical Customer Service Department at 888-327-8477