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              Redispersible Polymer Powder - VAE-RDP

              RDP is used as independent and additional adhesive in glue joints. For modification of dry building mixes on plaster and cement basis.
              Redispersible polymer powder on the basis of vinyl acetate polymer and vinyl ether , which has polyvinyl alcohol as protective colloid.

              Product Description

              Redispersible Polymer Powder (RDP) stands out as a pivotal adhesive agent in dry powder materials like cement and gypsum. It is the result of the spray drying of polymer emulsions, transforming them into a powder form through a series of processes such as high-temperature treatment, spray drying, and surface modification. When mixed with water, these powdered organic binders can re-disperse into a new emulsion, retaining properties similar to the original copolymer emulsion, forming a film after water evaporation.

               

              Adding Redispersible Polymer Powder to mortar enhances its adhesion, bond strength, and flexibility. Firstly, it improves the mortar's water retention, forming a film that reduces water evaporation. Secondly, it enhances the bond strength of the mortar. Additionally, latex powder with hydrophobic properties can enhance the waterproofing performance of the mortar.

               

              Appearance

              White or off-white powder

              Particle size

              80

              Density g/cm³

              500±100

              Ash Content %

              12±2

              PH ( 25-30℃)

              7-9

              Residual moisture %

              ≤2

              Minimum film formation temperature

              4℃

               

              Performance of Redispersible Polymer Powder in dry mortar:

              Improved Adhesion: Enhances the adhesion of dry mortar to various substrates, ensuring weather-resistant bond strength under various conditions. For instance, it improves the bond strength between thermal insulation mortar and substrates such as EPS boards, EPS particles, concrete walls, and brick walls.

              Increased Flexibility: Reduces the elastic modulus of materials, enhancing their elasticity and flexibility. The material can withstand substrate deformation, external impact, temperature variations, and freeze-thaw deformations. For example, Redispersible Polymer Powder significantly improves the dynamic crack resistance of putty and the heat aging resistance of tile adhesive, as well as the impact resistance of EPS board insulation systems.

              Reduced Water Absorption: Lowers the water absorption rate of materials, with special hydrophobic latex powder yielding more pronounced effects. This minimizes damage caused by water to the formed mortar.

              Enhanced Workability: Certain types of Redispersible Polymer Powder can improve the anti-sagging and flow properties of the mortar, enhancing its construction performance.

               

              Application

              ● Gypsum / Cement / Mortar systems

              ● Movable/Regular mortar for thin coating

              ● Plaster boards / Gas-concrete block adhesives

              ● Wall/floor tile adhesive

              ● Open/closed-textured tile adhesive

              ● Plasters, fillers and finishing compounds

              ● Repair compounds for cracks filling and thin coating surface smoothing

              ● Repair compounds for finishing and leveling of concrete surfaces

              ● Polymeric alloys for grouting and cracks filling

              ● Water resistance / Grouting compounds

              ● Filling and embossing compounds

              ● Cement self-leveling flooring compounds

               

              Advantage

              ● Dry strength / Durability / Lifetime increasing

              ● Mixture stability improving

              ● Water demand rate / bleeding reduction

              ● Air pore uniform distribution over volume

              ● Impact bending / Abrasive / Flexural strength increasing

              ● Temperature changes resistance

              ● Shrinkage reduction

              ● Adhesion/Cohesion increasing

              ● Stress cracking resistance increasing

              ● Provides high final strength

              ● Water retention improving

              ● Provides properties stability during different cements usage

               

              Packing & storage

              Packed in 25 kg valved multilayer paper bags

              Guaranteed shelf life in closed and undamaged package

              It should be protected from sun and rain, fire, moisture, static electricity, open flame and sparks when transportation and storage.

              This information is based on our present state of knowledge.It is intended for public introduction of our products and their uses. This description should not be construed as a guarantee of the products specific properties or serviceability for a particular application.

               

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