1.Product introduction
Name: VAE dispersible latex powder
Packing: 25kg/bag
The redispersible latex powder product is a water-soluble white or off-white flowable powder, which is a copolymer of ethylene and vinyl acetate, and uses polyvinyl alcohol as a protective colloid. Due to the high binding ability and unique properties of dispersible polymer powders, such as water resistance, workability and thermal insulation, their application range is extremely wide. It is mainly used in construction, especially to increase cohesion, cohesion and flexibility in dry mortar.
2.Technical indicators
Solid content: (99±1)%;
Specific gravity: (490±50) g/L;
Ash content: (10±2)%;
Appearance: white powder, free flowing
Particle size: ≤4% greater than 400um
Minimum film forming temperature: 0～5℃
Appearance of film formation: transparent, elastic;
Bulk density: 300-500
50% re-emulsified emulsion
Glass transition point: (Tg,onset,℃) -2±2
Viscosity: (Pas, 25℃) 1.5-6
PH value: 6-8
3.Product application range
External wall insulation system bonding mortar
tile adhesive
External wall thermal insulation system plastering mortar
tile grout
self-flowing cement mortar
Flexible putty for interior and exterior walls
Flexible anti-cracking mortar
Rubber powder polystyrene particle insulation mortar
dry powder coating
Polymer mortar products with higher requirements for flexibility
4.Product features
It has extremely outstanding waterproof performance, good bonding strength, increases the elasticity of the mortar and has a longer open time, gives the mortar excellent alkali resistance, and improves the adhesion/adhesion, flexural strength, plasticity and resistance of the mortar. In addition to grinding performance and workability, it has stronger flexibility in flexible anti-cracking mortar
5.The role of redispersible polymer powder
The dispersible polymer powder is dispersed into a film and acts as a reinforcement as the second adhesive
The protective colloid is absorbed by the mortar system and will not be destroyed by water or “secondary dispersion” after film formation
The film-forming polymer resin acts as a reinforcement distributed throughout the mortar system, thereby increasing the cohesion of the mortar
6.The role of disperse polymer powder in mortar
The redispersible latex powder is dispersed into a film and acts as a second adhesive to enhance adhesion;
The protective colloid is absorbed by the mortar system (it will not be destroyed by water after film formation. Or dispersed twice);
The film-forming polymer resin is distributed throughout the mortar system as a reinforcing material, thereby increasing the cohesion of the mortar.
The role of dispersible polymer powder in wet mortar
Improve construction performance
Improve flow properties
Increase thixotropy and sag resistance
improve cohesion
Extended opening hours
Enhance water retention
The role of redispersible powder after mortar curing
Increased tensile strength (additional adhesive in cement systems);
Enhanced flexural strength;
reduce elastic modulus;
Improve deformability;
Increase material density;
Improve wear resistance;
Improve cohesive strength;
Reduce carbonation depth;
Reduce material water absorption
7.How the RDP product is stored
Dispersible polymer powder VAE should be stored in a cool and dry place. The recommended period of use is six months, so use it as early as possible in the summer. Storage in high temperature and humid conditions will increase the chance of caking. After opening the bag, please use it as soon as possible, otherwise you need to seal the bag to avoid absorbing moisture from the air. Do not stack on pallets or keep paper bags under excessive pressure for a long time to avoid clumping.