Sidley Chemical Co., Ltd

Redispersible Polymer powder/RDP

RDP is composed of a special polymers made of powder adhesive after spray drying. This powder is contact with water can be dispersed again in soon after forming emulsion, and with the nature of the same as the initial emulsion, namely the film can be formed after the moisture evaporation, the film has high flexibility, high resistance to weathering and on various substrate with high caking property. the powder environmental protection, energy saving, high quality, used for powder materials, dry-mix mortar is an indispensable functional additives.

It can improve the performance of mortar, raise the strength of the mortar, improve the bonding strength of mortar with different base material, improve the mortar flexible and variable line, compressive strength, flexural strength, abrasion resistance and toughness, stick relay and water retention, constructability.

Redispersible Polymer powder is mainly used in all kinds of dry-mix mortar, such as wall putty powder, ceramic tile adhesive, ceramic tile jointing agent, dry powder interface agent, exterior insulation mortar, self-leveling mortar, mending mortar, decorative mortar, waterproof mortar, etc..

Specification
Item RDP-501 RDP-503 RDP-505
Solid content ≥98.0% ≥98.0% ≥98.0%
Ash content (1000℃) 10%±2 10%±2 10%±2
Bulk density 450−550 g/l 450−550 g/l 450−550 g/l
Average particle size ~80 μm ~80 μm ~80 μm
pH value 5.0-7.0 5.0-8.0 5.0-8.0
Minimum film-forming temperature 4℃ 1℃ 0℃
Tg 3℃ 3℃ 16℃

Feature: Redispersible Polymer powder(Redispersible Latex powder) is the main raw material in production of internal, external wall putty, adhesive mortar and plaster mortar. the powder is specially applied as the agglutinant of basis materials on triple superphosphate, Talcum powder and white cement and so on. It can improve the adhesion properties water resistance, flexural strength and operability of the basis materials.

Usage: The quantity of the powder is to different kinds of basis material. The substrate mixture should be stirred and dispersed fully to ensure the excellent stability of the products. However, high temperature generated from high-pressure and shear stress when mixed should be avoided.

Packing &Storage: 25kg/pp bags. It can be stored in a cool, dry place below 30°C and protected against humidity and pressing, since the goods is thermoplastic, storage time should not exceed six months. Self life: 180days