This is a special one in the world of gypsum cements. Sets VERY slowly and allows for a lot of manipulation during the setting period. We use it for a form of Scagliola but it is useful for many situations where you might want something that is malleable and moldable. Use it almost like clay and when it sets, it is HARD. This one can be re-tempered meaning that once it's mixed it may start to look like it is setting. No problem just put a mechanical mixer into your bucket and mix it again and you're back to square one-for up to six hours. I see a lot of potential for this product in producing furniture and furnishings as well as interior surfaces. Available in 50 pound and 10 pound bags.