Redispersible powders have become an essential component in the construction industry, particularly for improving the characteristics of materials such as tile adhesives, mortars, and other cementitious systems which form a film. When these particles are combined with water, they disperse into their original polymer emulsion form, providing several benefits to the finished product. Let’s look at the many varieties of redispersible polymer powder and their distinct properties.
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Aside from the major categories of redispersible powders, there are other components that influence their effectiveness. Polyvinyl alcohol, for example, is commonly employed as a protective colloid during spray drying. This ensures that the powder flows freely and does not clump.
Redispersible Polymer Powder has unquestionably transformed the construction chemicals business. Their capacity to improve bond strength, water resistance, and rheological qualities renders them useful in current building materials.
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CAS: -78-8
Redispersible Polymer Powder (RDP) is spray dried redispersible emulsion latex powder, designed for the construction industry to enhance the properties of dry mortar blends, able to Redispersible in water and react with hydrate product of cement / gypsum and stuffing, form composite membrane with good mechanics intensity.
It improves the important application properties of dry mortars, like longer opening time, better adhesion with difficult substrates, lower water consumption, better abrasion and impact resistance.
After spray drying, VAE emulsion is turned into a white powder which is a copolymer of ethyl and vinyl acetate. It is free-flowing and is easy to emulsify. When dispersed in water, it forms a stable emulsion. Possessing the typical characteristics of VAE emulsion, this free-flowing powder offers greater convenience in handling and storage. It can be used by mixing with other powder-like materials, such as cement, sand and other lightweight aggregate, and it can also be used as a binder in building materials and adhesives.
Redispersible Polymer Powder (RDP) dissolves in water easily and quickly forms emulsion.It improves the important application properties of dry mortars, longer opening time, better adhesion with difficult substrates, lower water consumption, better abrasion and impact resistance.
Protective colloid : Polyvinyl alcohol
Additives : Mineral anti-block agents
Technical Specification
RDP-212 RDP-213 appearance White free flowing powder White free flowing powder Particle size 80μm 80-100μm Bulk density 400-550g/l 350-550g/l Solid content 98 min 98min Ash content 8-12 12-14 PH value 5.0-8.0 5.0-8.0 MFFT 0℃ 5℃Key Properties:
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Redispersible Polymer Powder RDP can improve adhesion, flexural strength in bending, abrasion resistance, deformability. It has good rheology and water retention, and can increase the sag resistance of tile adhesives, it can made up to tile adhesives with excellent non-slump properties and putty with good properties.
Special features:
Redispersible Polymer Powder RDP has no effect on rheological preperties and is a low-emissions,
General – purpose powder in the medium Tg range. It is eminently suitable for
formulating compounds of high ultimate strength.
Items/Types RDP 212 RDP 213 Tile adhesive ●●● ●● Thermal insulation ● ●● Self- leveling ●● Flexible exterior wall putty ●●● Repair mortar ● ●● Gypsum joint and crack fillers ● ●● Tile grouts ●●Packaging:
RDP Product is packed in three layer paper bag with inner polyethylene bag reinforced , net weight is 25kg per bag.
Storage:
Keep it in cool dry warehouse,away from moisture, sun,fire,rain.
For more information, please visit Calcium Formate Powder.