CMC is taken as blank adhesive, plasticizer, glaze suspending agent and color fixing agent in porcelain industry. Adding CMC to blanks will enhance blank adhesiveness (making it easily formed) , improve mechanical strength and reduce blank breaking rate. Adding CMC to glaze will enhance the binding of blanks and glaze and promote glaze dispersion. 

In the firing process it is used as a additive to keep the glaze from flowing, that is to say,to prevent the glaze turning into tears in the kiln. And CMC with high purity leaves almost nothing at the buring .