Factory Outlet Best Price Thermal Redispersible Polymer Emulsion Powder for Skim Coat

• Customization: Available
• CAS No.: 24937-78-8
• Formula: (C3h6o2)M(C4h6o2)N(C5h8o2)P
• Model NO.: RDP 503m
• Appearance: Free Flowing White Powder
• Usage: Oil Drilling Auxiliary Agent, Coating Auxiliary Agents, Surfactants, Dry Mixed Mortars
• Color: Free Flowing White Powder
• Factory: Own Factory
• Application 1: Dry Mixed Mortars/Construction Mortar
• Application 2: Tile Adhesive/Wall Putty Powder/Skim Coat
• Other Names: Rdp/Vae/Redispersible Polymer Powder
• Mf: (C2h4)X.(C4h6o2)Y
• Mfft: 0
• Tg: -6, -8, -11, 3, 15
• Purity: 99.99%
• 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.
Redispersible polymer powder product is water soluble redispersible powder, divided into ethylene/vinylacetate copolymer, with polyvinyl alcohol as a protective colloid, spray drying white powder adhesive. This powder can be quickly dispersed into emulsion after contact with water, because of the redispersed polymer powder has high bonding capacity and unique properties, such as: water resistance, construction and heat insulation, therefore, their range of application is extremely wide.  
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

Emulsion and RDP/Redispersible Polymer Powder(redispersible emulsion powder) can form high tensile strength and bond strength on different materials after film formation, and they are combined with inorganic binder cement as the second binder in mortar, cement and polymer play corresponding special features respectively, so that the performance of mortar can be improved. By observing the microstructure of polymer-cement composite material, it is concluded that the addition of redispersible emulsion powder can make the polymer film and become a part of the pore wall, and the mortar forms a whole through the internal force, which improves the cohesion strength of the mortar, and thus increases the failure stress and ultimate strain of the mortar. The long-term properties of redispersible emulsion powder in mortar were studied. It was observed by SEM that after 10 years, the microstructure of polymer in mortar still did not change, and it maintained stable bond, flexural and compressive strength and good hydrophobic properties. Wang Ziming et al. [11] studied the formation mechanism of the redispersible emulsion powder on the strength of the ceramic tile binder, and found that after the polymer dried into film, on the one hand, the polymer film formed a flexible connection between the mortar and the ceramic tile; on the other hand, in the newly mixed mortar, the polymer increased the gas content of the mortar and affected the formation and wettability of the surface. The polymer will also have a better effect on the hydration process and shrinkage of the cement in the binder, all of which will have a better help in improving the bond strength.

The addition of RDP/Redispersible Polymer Powder(redispersible latex powder) to mortar can significantly improve the bond strength with other materials, because the hydrophilic latex powder and the liquid phase of the cement suspension permeate into the pores and capillaries of the matrix, and the latex powder forms a film in the pores and capillaries and is firmly adsorbed on the surface of the matrix, thus ensuring a good bond strength between the cementing material and the matrix.
The optimization of latex powder on mortar performance is due to the fact that latex powder is a high polymer with polar groups. When latex powder is mixed with EPS particles, the non-polar chain segment of latex powder polymerization main chain will physically adsorb the non-polar surface of EPS. The polar groups in the polymer are oriented outward on the surface of EPS particles, making EPS particles change from hydrophobic to hydrophilic. Due to the modification effect of latex powder on the surface of EPS particles, the problem that EPS particles are easy to float when exposed to water and the stratification degree of mortar is large is solved. At this time, cement is added to mix, and the polar groups adsorbed on the surface of EPS particles interact with the cement particles and are closely combined, so that the workability of EPS insulation mortar is significantly improved. This is reflected in the EPS particles are easily wetted by cement slurry, and the binding force between the two is greatly improved.
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