Rdp Redispersible Polymer Powder for Thermal Insulation Building Mortar Self-Leveling Mortar

• After-sales Service: Technical Support
• Type: Forming Agent
• 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

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.
With the increase of the content of redispersible emulsion powder/Rdp, the whole system develops in the direction of plastic. In the case of high emulsion powder content, the polymer phase in the cured mortar gradually exceeds the phase of the inorganic hydration product, the mortar has a qualitative change, and becomes an elastomer, while the hydration product of the cement becomes a "filler". The dispersed film of dispersible emulsion powder distributed on the interface plays another key role, that is, it enhances the adhesion of the contact material, which is good for some difficult surfaces, such as very low water absorption or non-water absorption surfaces (such as smooth concrete and cement material surface, steel plate, homogeneous brick, vitrified brick surface, etc.) and organic material surfaces (such as EPS board, plastic, etc.). It is especially important. Because the bonding of the mechanical adhesive to the material is achieved through the principle of mechanical embeddings, that is, the hydraulic slurry penetrates into the gap of other materials, gradually solidifies, and finally the mortar is attached to the surface of the material like the key embedded in the lock. For the above difficult surface, due to the inability to effectively penetrate into the material to form a good mechanical embeddings, The mortar with only inorganic adhesive is not effectively bonded to it, which is well proved by electron microscope observation. The bonding mechanism of polymers is different. Polymers are bonded to the surface of other materials by intermolecular force, and do not depend on the porosity of the surface (of course, the rough surface and the increased contact surface will improve the bonding force), which is more obvious in the case of organic substrates, and the electron microscope observation has also proved its superiority in the bonding force.
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.
The role of dispersible emulsion powder in mortar is mainly in the following aspects
1, improve the compressive strength and folding strength of mortar.
2. The addition of latex powder improves the elongation of mortar, thus improving the impact toughness of mortar, and also gives mortar a good stress dispersion effect.
3, improve the adhesion of mortar. The bonding mechanism depends on the adsorption and diffusion of macromolecules on the sticky surface, while the rubber powder has a certain permeability, and the cellulose ether together fully infiltrates the surface of the base material, so that the surface performance of the base and the new plaster is close, thereby improving the adsorption and greatly increasing its performance.
4, reduce the elastic modulus of mortar, improve deformation capacity, reduce cracking phenomenon.
5, improve the wear resistance of mortar. The improvement of wear resistance is mainly due to the presence of a certain amount of rubber bent on the surface of the mortar, the adhesive powder plays a bonding role, and the retinal structure formed by the adhesive powder can pass through the holes and cracks in the cement mortar. The adhesion between the base material and the cement hydration product is improved, and the wear resistance is improved.
6, give the mortar excellent alkaline resistance.
7, improve the cohesion of putty, excellent resistance, alkali resistance, wear resistance, enhance the bending strength.
8. Improve the water resistance and permeability of the putty.
9, improve the water retention of putty, increase the opening time, improve workability.
10, improve the impact resistance of putty and enhance the durability of putty.
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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