Kitchencrete: Experimenting with natural clay, lime, or gypsum .If you are at all interested in using natural clay, lime or gypsum plasters on your . Small food processors work well, because you will not be placing cement or sand . is a great way to start blending a base mix -- just never add sand or cement.can i add cement to gypsum,duoMatrix® Systems, Polymer Modified Concrete and Gypsum .Polymer Modified Concrete and Gypsum. . duoMatrix®‑C will improve processing of GFRC, making architectural elements and concrete castings (ornamental,.
can i add cement to gypsum