Putty powder CMC model: 348,218A CMC is a derivative with ether structure obtained by chemical modification of natural cellulose. It is a water-soluble gum, which can be dissolved in cold and hot water. Its aqueous solution has the functions of bonding, thickening, emulsifying, dispersing, suspending, stabilizing and film-forming. CMC-Application In Putty Powder CMC, as an additive for building putty, provides good performance in construction, water retention and flow resistance. Detail Parameters Addition amount (%)  348 0.8-1.5% 218A 0.6-1.2% If you need to customize, you can provide detailed formula and process. 348 218A colour White flocculent White or light yellow powder water content 45.0% 10.0% PH 8.0-12.0 8.0-10.0 Degree of substitution 0.5 0.5 Purity 50% 50% Particle size - 98% pass 250 microns (60 mesh) Viscosity (b) 1% aqueous solution 50-500mPas 100-500mPas