ceramic moulding gypsum powder is a kind of gypsum powder used to make mould for ceramic.It has two kinds,one is called grouting gypsum powder and the other is called rolling gypsum powder.
1.Grouting gypsum powder is mainly used for large ceramic molding (such as sanitary ware) or irregular shaped molding (such as teapot) (focus on water absorption).
2.Rolling gypsum powder is mainly used for the forming of regular round porcelain (focus strength, wear resistance).
water gypsum mix proportion: 38%-75%
churning time:3-8 min
initial setting time:3 -8min
final setting time:22 -30min
flexural strength: 1.8-6.5Mpa