Economical Flexible Rdp Redispersible Polymer Latex Powder Used in Skim Coat

• CAS No.: 24937-78-8
• Formula: (C3h6o2)M(C4h6o2)N(C5h8o2)P
• EINECS: 429-840-1
• Appearance: Powder
• Usage: Oil Drilling Auxiliary Agent, Coating Auxiliary Agents, Surfactants, Concrete Mortar Admixtures
• Color: White
• Model NO.: RDP 503m
• Factory: Own Factory
• Application 1: Dry Mixed Mortars/Construction Mortar
• Application 2: Tile Adhesive/Wall Putty/Skim Coat
• Other Names: Rdp/Vae/Redispersible Polymer Powder
• Transport Package: PP Bag with PE Liner and Pallets
• Specification: VAE Vinyl Ethylene Acetate Copolymer
• Trademark: HEARST
• Origin: China
• HS Code: 3905290000
• Production Capacity: 22000tons/Year

Product Description

Redispersible Polymer powder/RDP
RDP/ Redispersible Polymer powder 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/RDP(Vae)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...
Technical data

Technical Date	HEARST RD 503M	HEARST RD 760F	HEARST RD 740H	HEARST RD 745W
Polymer Base	VAC/VAE	VAC/VAE	VAC/VAE	VAC/VAE/AC
Protective Colloid	Polyvinyl Alcohol	Polyvinyl Alcohol	Polyvinyl Alcohol	Polyvinyl Alcohol
Solid Content	≥ 99.0%	≥ 99.0%	≥ 99.0%	≥ 99.0%
Ash Content(900ºC)	11%±2	11%±2	11%±2	11%±2
Stacking Density (g/L)	450-550	450-550	450-550	450-550
Average Particle Size(um)	~80	~80	~80	~80
PH Value	7.0-9.0	7.0-9.0	7.0-9.0	7.0-9.0
Tg(ºC)	3	-8	15	-11
MFFT (Minimum film-forming temperature) (ºC)	0	0	4	0

The RDP/Redispersible Polymer Powder(redispersible emulsion powder) is physically mixed with other inorganic adhesives (such as cement, hydrated lime, gypsum, clay, etc.) as well as various aggregates, fillers and other additives (such as hydroxypropyl methyl cellulose, polypolysaccharide (starch ether), cellulose fiber, etc.) to make dry mix mortar. When the dry powder mortar is mixed in water, under the action of hydrophilic protective colloid and mechanical shear force, the latex powder particles can be quickly dispersed into water, and enough to make the redispersible latex powder fully film. The different composition of rubber powder has an impact on the rheological properties of mortar and various construction properties: the affinity of latex powder to water when it is redispersed, the different viscosity of latex powder after dispersion, the impact on the gas content of mortar and the distribution of bubbles, the interaction between rubber powder and other additives, so that different latex powder has an effect of increasing fluidity, increasing thixotropy and increasing viscosity.

The mechanism of the RDP/Redispersible Polymer Powder(redispersible emulsion powder) to improve the workability of the newly mixed mortar is: the emulsion powder, especially to protect the colloid dispersion of water and increase the viscosity of the slurry, improve the cohesion of the construction mortar.
After the newly mixed mortar containing emulsion powder dispersion is formed, with the water absorption of the base surface, the consumption of hydration reaction, and the volatilization to the air, the water is gradually reduced, the resin particles are gradually close, the interface is gradually blurred, the resin is gradually fused with each other, and finally polymerized into a film. The process of polymer film formation is divided into three stages. In the first stage, the polymer particles move freely in the form of Brownian motion in the initial emulsion. As water evaporates, the movement of particles is naturally more and more restricted, and the interfacial tension between water and air causes them to gradually line up together. In the second stage, when the particles begin to contact each other, the water in the network evaporates through the capillary tubes, and the high capillary tension applied to the surface of the particles causes the deformation of the latex spheres so that they fuse together, the remaining water fills the pores, and the film is roughly formed. The third and final stage enables the diffusion of polymer molecules (sometimes called self-adhesive) to form a truly continuous membrane. In the film forming process, the isolated movable latex particles consolidate into a new film phase, which has a high tensile stress. Obviously, in order for the RDP/Redispersible Polymer Powder(redispersible emulsion powder) to re-harden the film in the sand slurry, the minimum film forming temperature (MFT) must be ensured to be lower than the curing temperature of the mortar.

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. Application range

Application	HEARST RD 503M	HEARST RD 760F	HEARST RD 740H	HEARST RD 745W
Adhesive Mortar for EIFS	★★★	★	★★★	★
Surface Mortar for EIFS	★★	★★★	★	★★
lnterior Wall Putty powder	★★	★	★★★	★
Exterior Wall Putty powder	★★	★★★	★	★★
Tile Adhesive Mortar	★★	★★★	★★	★★
Self-Leveling Compound	★★	★	★★★	★
Repair Mortar	★★	★★★	★	★★
Color Decoration Mortar	★★	★★★	★	★★
Tile grout	★★	★★★	★	★★★
Waterproof Mortar	★	★★	★	★★★

★★★ Highly Recommended                                   ★★ Recommended                        ★ Suitable
Application range

Tile adhesive mortar/Tile grouts/Tiles Binder/tile joint filler/ Caulk

Tile renovation interface agent

Skim coat (Putty)/wall putty/Dry putty powder

lnterior Wall Putty/Exterior Wall Putty

EIFS system mortar/coating mortar for EIFS(external insulation finish system)

EIFS system mortar/adhesive mortar for EIFS(external insulation finish system)

Thermal insulation mortar/Waterproof Mortar

decoration mortar/Color Decoration Mortar

dry mixed mortar/Construction Mortar/Repair Mortar

Surface modification cement/Cement Based Mortar

Powder latex paint

Thermal insulation building materials/ Thermal insulation mortar

Self-leveling mortar/Self-Leveling Compound

Classify:
Rdp Redispersible Polymer Powder for waterproof
Rdp Redispersible Polymer Powder for wall putty skim coat
Rdp Redispersible Polymer Powder for Tile adhesive mortar
Rdp Redispersible Polymer Powder for Self-leveling
Rdp Redispersible Polymer Powder for diatom mud
Our laboratory

Our factory
Shandong Hearst Building Material Co.,ltd. is a high-tech enterprise integrating scientific research and development, production and sales, and technical services. The company has fixed assets of more than 100 million yuan, the factory covers an area of 50000 square meters, and a construction area of 26000 square meters. The company has 106 employees, including 60 professional and technical personnel of various types, and 22 personnel with high and intermediate technical titles.
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 600Kg Big Bag.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