HPMC is a non-ionic cellulose ether used in cement and gypsum-based mortars as a water-retention agent and thickener.
HEC
HEC is a non-ionic water-soluble cellulose ether used as a thickener, rheology modifier, protective colloid and film former.
Titanium Dioxide
Titanium dioxide is an effective white pigment with high opacity, brightness and tinting strength.