U-12® Mold Rinse & Release is an economical "non-soap" based concentrate that is diluted with water and applied to the surface of a rubber mold prior to casting gypsum plasters. Properly mixed and applied, U-12® breaks the surface tension of the mold rubber surface and allows plaster to flow and de-air better. Plaster castings cure with fewer air bubbles.It also removes residual plaster debris and eliminates plaster build-up. Regular use of U-12® Mold Rinse (especially when doing high volume
