Redispersible latex powder
Redispersible latex powder products are water-soluble white or off-white flowable powders, which are copolymers of ethylene and vinyl acetate, with polyvinyl alcohol as a protective colloid. Because redispersible latex powders have high bonding ability and unique properties, such as water resistance, construction performance and heat insulation, their application range is very wide. Uses ◇Tile adhesive ◇External wall insulation system bonding mortar ◇External wall insulation system finishing mortar ◇Tile grout ◇Self-flowing cement mortar ◇Flexible putty for internal and external walls ◇Flexible anti-cracking mortar ◇Glue powder polystyrene granule insulation mortar ◇Dry powder coating ◇Polymer mortar products with higher requirements for flexibility Performance It has outstanding waterproof performance, good bonding strength, increases the elasticity of mortar and has a longer open time, giving the mortar excellent alkali resistance, adhesion/bonding, flexural strength, plasticity, wear resistance and construction performance, and has stronger flexibility in flexible anti-cracking mortar. The role of redispersible latex powder: After dispersion, redispersible latex powder forms a film and acts as a second adhesive to enhance the effect; The protective colloid is absorbed by the mortar system (it will not be destroyed by water after film formation, or "secondary dispersion"); The film-forming polymer resin is distributed in the entire mortar system as a reinforcing material, thereby increasing the cohesion of the mortar; The role of redispersible latex powder in wet mortar: Improve construction performance; Improve flow performance; Increase thixotropy and anti-sagging; Improve cohesion; Extend open time; Enhance water retention. The role of redispersible latex powder after mortar solidification: Increase tensile strength; Increase flexural strength; Reduce elastic modulus; Increase deformability; Increase material density; Increase wear resistance; Increase cohesive strength; Reduce carbonization depth; Reduce material water absorption; Make the material water-increasing (add water-increasing rubber powder)
