Rdp Redispersible Polymer Powder for Skim Coat (Putty) /Wall Putty/Dry Putty Powder

• Customization: Available
• Type: Forming Agent
• Factory: OEM Factory
• Model NO.: 503m
• Application 1: Dry Mixed Mortars/Construction Mortar
• Application 2: Tile Adhesive/Wall Putty/Skim Coat
• Appearance: Free Flowing White Powder
• Ash Content: 12±2%
• Mfft: 0
• Tg: 3
• Purity: 99.99%
• Mf: (C2h4)X.(C4h6o2)Y
• CAS No.: 24937-78-8
• Einecs No.: 429-840-1
• Other Names: Rdp/Vae/Redispersible Powder
• Shelf Time: 6 Month
• After-sales Service: Technical Support
• 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

Shandong Hearst Building Material Co.,ltd
We have strong financial strength, and introduced full set of production line with industry leading level from German. With foreign advanced technology production base and our research and development center, annual output of 22000tons,now we have become one of the biggest and trusted manufacturer of Redispersible polymer powder in China.
RDP/VAE(Redispersible Polymer Powder/Redispersible Powder)
RDP (Redispersible Polymer Powder/Redispersible Powder) or VAE is a water-soluble re-dispersible powder. It is a copolymer of ethylene and vinyl acetate. It dissolves in water easily and forms emulsion quickly, RDP could offer strong adhesive and stretching force to improve the workability, flexibility and  water-proofing of the materials. Redispersible Polymer Powder is a kind of free-flowing white powder,which is spray-dryed by polymer emulsion and after subsequent treatment to keep the stability of powder appearance and character. The mainly application is in construction dry-mixed mortar,and have excellent performance in increasing the dry mortar cohesion,adhesion and flexibility.
The redispersible polymer powder(VAE) is a water-soluble re-dispersible powder. It is a copolymer of ethylene and vinyl acetate. It uses polyvinyl alcohol as a protective colloid. By adding re-dispersible latex powder, the performance of mortar with cement or gypsum as the substrate can meet the needs of various constructions.
Rdp/Redispersible powder is usually white powder, but there are a few products in other colors. The components of dispersible emulsion powder mainly include the following.
(1) Polymer resin. Polymer resin is located in the core part of rubber powder particles, and is also the main component of dispersible latex powder, such as polyvinyl acetate/vinyl resin, styrene/butadiene resin, vinyl/vinyl chloride/vinyl laurate resin, etc.
(2) Additives (inside). The additive (inside) plays a role in improving the properties of the resin. For example, a plasticizer that reduces the film forming temperature of the resin. Not every emulsion powder has additives, such as vinyl acetate/vinyl copolymer resins do not need to add plasticizers.
(3) Protective colloid. The protective colloid is a layer of hydrophilic material coated on the surface of dispersible latex powder particles. Most of the protective colloid of redispersible emulsion powder is polyvinyl alcohol.
(4) Additives (outside). In order to further improve the performance of the redispersible emulsion powder, other additives other than plasticizers are usually added, here called additives. Usually, a superplasticizer is added to the dispersible emulsion powder to improve the fluidity and dispersion of the emulsion.
(5) anti-caking agent. The anti-caking agent is usually a fine mineral filler, which acts to prevent the agglomeration of the emulsion powder during storage and transportation, and also helps the emulsion powder product to come out when it is dumped from the paper bag or tank truck.
Product Property
- HEARST-503M Rdp as a VAE polymer powder can be redispersed well into polymer emulsion again after mixing with water.
- HEARST-503M Rdp with the characteristics of middle glass transition temperature, therefore, has a good balance between adhesion and flexibility, and wide universality of application.
- HEARST-503M Rdp can form film with suitable hardness inside and surface of the finished construction material product, which can significantly improve the cohesion, wear resistance, impact resistance and waterproofing ability.
- HEARST-503M Rdp with good acid and alkaline resistance, is good for the workability and weatherability of the construction material products which used it.
- HEARST-503M Rdp with good and wide compatibility, can use with almost all other chemical additives in diverse formulations.
- HEARST-503M Rdp not only retains the superior performances of the original VAE emulsion, such as good film formation, excellent adhesion and durable flexibility, but also improves the convenience and stability for transportation, storage and operation.
- HEARST-503M Rdp is produced without adding plasticizer, film forming additives or solvent, so it has excellent environmental protection, low odor, low VOC.
Technical data

Technical Date	HEARST RD 503M	HEARST RD 760F	HEARST RD 740H	HEARST RD 745W
Polymer Base	VAC/E	VAC/E	VAC/E	VAC/E/AC
Protective Colloid	Polyvinyl Alcohol	Polyvinyl Alcohol	Polyvinyl Alcohol	Polyvinyl Alcohol
Solid Content	≥ 99.0%	≥ 99.0%	≥ 99.0%	≥ 99.0%
Ash Content	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(ºC)	0	0	4	0

Applications and dosage
HEARST-503M is recommended to use in dry mixing mortar or powder construction material products, such as ceramic tile adhesive, tile grout, external wall insulation system (EIFS/ETICS), extrusion mortar for EPS component, waterproofing mortar, self-leveling mortar, repair mortar, decorative mortar, skim coat, fire-resistant mortar, sound insulation mortar, Joint compound, AAC adhesive, gypsum products, etc.
Normally recommended dosage is 0.5~5% in total formulation.

- In EIFS/ETICS formulation, is recommended to add 2~4% dosage of HEARST-503M, which can effectively improve the bonding strength, impact resistance and reduce water absorption.
- In skim coat formulation, is recommended to add 1~5% dosage of HEARST-503M, which can significantly reduce water absorption, improve the flexibility and bonding strength with the substrate.
Characteristic
 - Better deformability
 - Increased adhesion to a variety substrates
 - Improved wetting of the substrate
 - Higher flexural strength and flexibility
 - Increased impact and abrasion resistance
 - Higher durability and freeze thaw resistance
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	★★	★	★★★	★
Exterior Wall Putty	★★	★★★	★	★★
Tile Adhesive Mortar	★★	★★★	★★	★★
Self-Leveling Compound	★★	★	★★★	★
Repair Mortar	★★	★★★	★	★★
Color Decoration Mortar	★★	★★★	★	★★
Tile Grout	★★	★★★	★	★★★
Waterproof Mortar	★	★★	★	★★★

★★★ Highly Recommended                               ★★ Recommended                      ★ Suitable
Application range
-  Tile adhesive/Tile grouts/tile joint filler/ Caulk
 -  Tile renovation interface agent
  -  Skim coat (Putty)/wall putty/Dry putty powder
 -  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
-  decoration mortar
 -  dry mixed mortar
 -  Surface modification cement
  -  Powder latex paint
-  Thermal insulation building materials/ Thermal insulation mortar
-  Self-leveling mortar
Redispersible polymer powder(RDP/VAE) can be redispersed into emulsions quickly after contact with water. Due to their high binding ability and unique properties. Such as water resistance, workability and heat insulation. they are range of applications that is extremely wide.
Product properties of dispersible emulsion powder
─ Improve the bending strength and flexural strength of mortar
The polymer film formed by dispersible emulsion powder has good flexibility. The film is formed on the gap and surface of cement mortar particles to form a flexible connection. Heavy and brittle cement mortar becomes elastic. Mortar with redispersible emulsion powder has several times higher tensile resistance than ordinary mortar.
─ Improve the bonding strength and cohesion of mortar
As an organic binder, the dispersible emulsion powder can form a film with high tensile strength and bonding strength on different substrates. It plays a very important role in the adhesion between mortar and organic materials (EPS/ extruded plastic foam board) and smooth surface substrate. The film-forming polymer rubber powder is distributed in the whole mortar system as a reinforcing material to increase the cohesion of the mortar.
─ Improve mortar impact resistance, durability, wear resistance
The cavity of the mortar is filled with rubber powder particles, and the denseness of the mortar is increased, and the wear resistance is improved. Under the action of external forces will produce relaxation without being destroyed. The polymer film can be permanently present in the mortar system.
-- Improve the mortar's weatherability, freeze-thaw resistance, and prevent mortar cracking
The redispersible emulsion powder is a thermoplastic resin with good flexibility, which can make the mortar cope with changes in the external cold and hot environment and effectively prevent the mortar from cracking due to changes in temperature difference.
─ Improve the water repellency of mortar and reduce water absorption
The redispersible emulsion powder forms a film in the mortar cavity and surface, and the polymer film will not disperse twice after encountering water, preventing the intrusion of water and improving the impermeability. Special redispersible emulsion powder with hydrophobic effect has better hydrophobic effect.
─ Improve the workability of mortar construction
There is lubrication effect between the polymer rubber powder particles, so that the mortar components can flow independently, and the rubber powder has an induction effect on the air, giving the compressibility of the mortar and improving the construction workability of the mortar.
Storage
-  HEARST-503M storage should protect from moisture.
-  At storage temperatures above 30ºC or under pressure during storage may cause HEARST-503M caking occurs.
-  If HEARST-503M is not used up after opening, it should be sealed in time and used as soon as possible.
-  The optimal service life of HEARST-503M is 6 montXDD, and the possibility of the product performances beyond the best use period will be reduced.
-  In order to ensure the best use effect of HEARST-503M, it is recommended to test the product's performances before use.
Packaging
-  25Kg bag
-  600Kg Big Bag
-  Standard packing: 25kg/bag inner with PE bags
-  1*20'FCL: 14 tons with pallets or 17 tons without pallet
-  1*40'FCL: 28tons with pallets
Ensure that the packaging is intact during transportation, protects from moisture, avoids high temperature and pressure.
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