Surface Modification Cement Thermal Insulation Building Mortar Additives Vae Redispersible Polymer Powder Rdp

• After-sales Service: Technical Support
• Type: Viscosity Reducer Admixture
• Factory: OEM Factory
• Main Raw Material: Vinyl Acetate Ethylene Copolymer
• Application 1: Dry Mixed Mortars/Construction Mortar
• Application 2: Tile Adhesive/Wall Putty/Skim Coat
• Model NO.: 503m
• 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
• 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

RDP/VAE(Redispersible Polymer Powder/Redispersible Powder)
RDP (Redispersible Polymer Powder/Redispersible Powder) or VAE Powder (Vinyl Acetate Ethylene Copolymer) 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 Rdp/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 Polymer Powder is a thermoplastic resin powder prepared by spray drying polymer emulsion to remove water, and can be reduced to emulsion state after adding water. Due to this characteristic, it has been widely used in the fields where inorganic cementing materials need to be modified, such as single-component JS waterproof coating, polystyrene board bonding mortar for building insulation, flexible surface protection mortar, polystyrene particle insulation coating, ceramic tile bonding agent, self-leveling mortar, dry mix mortar, putty, etc. Redispersible emulsion powder can enhance the strength of the product, adding redispersible emulsion powder to the putty powder and mortar can increase its strength, and the improvement of hardness is very helpful. It has outstanding waterproof performance, good bond strength, can also increase the elasticity of mortar and have a long opening time, and give mortar excellent alkali resistance, can improve the mortar adhesion/adhesion, bending strength, wear resistance and constructability, in the flexible crack mortar has a stronger flexibility.

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.
Product Property
- Better deformability
- HEARST-503M Rdp as a VAE polymer powder can be redispersed well into polymer emulsion again after mixing with water.
- Increased adhesion to a variety substrates
- 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.
- Improved wetting of the substrate
- 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.
- Higher flexural strength and flexibility
- HEARST-503M Rdp with good acid and alkaline resistance, is good for the workability and weatherability of the construction material products which used it.
- Increased impact and abrasion resistance
- HEARST-503M Rdp with good and wide compatibility, can use with almost all other chemical additives in diverse formulations.
- Higher durability and freeze thaw resistance
- 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.

Effect of RDP/Redispersible Polymer Powder(redispersible emulsion powder) on bond strength of cement-based materials
Emulsion and 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.

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 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:
Redispersible Polymer Powder for waterproof
Redispersible Polymer Powder for wall putty
Redispersible Polymer Powder for tile and plaster mortar
Redispersible Polymer Powder for Self-leveling
Redispersible Polymer Powder for diatom mud
Storage
- Storage should protect from moisture. Ensure that the packaging is intact during transportation, protects from moisture, avoids high temperature and pressure.
-  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
Our Service
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.
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