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VAE Redispersible Polymer Powder RDP Polymer Binder/ Latex Powder

RDP Redispersible latex powder is water-soluble redispersible powders, used in construction mortars:
Tile adhesive, Adhesive mortar for exterior insulation system,Surface mortar for external thermal insulation system,Tile jointing agent,Self-flowing cement mortar,Flexible putty for inner and outer walls,Flexible anti-crack mortar,Rubber powder polystyrene particle insulation mortar, Dry powder coating, Polymer mortar products with higher requirements for flexibility.
  • RDP

  • PTMA

  • 3901300000

Redispersible Polymer Powder RDP Polymer Binder/ Latex Powder


The Redispersible latex powder is water-soluble redispersible powders, which is divided into ethylene / vinyl acetate copolymers, vinyl acetate / tertiary carbonate copolymers, acrylic acid copolymers, etc.


The RDP powder is made by spraying drying and then forming bonded Agent, with polyvinyl alcohol as a protective colloid. This RDP powder can be re-dispersed into an emulsion soon after contact with water.

Due to the high binding ability and unique properties of the redispersible latex powder, such as water resistance, workability and thermal insulation, etc., it is used in many constrcution mortar applications.

Performance characteristics

RDP Powder has very outstanding bonding strength, improves the flexibility of the mortar and has a long opening time, gives the mortar excellent alkali resistance, improves the adhesion of the mortar, flexural strength, water resistance, plasticity, wear resistance In addition to workability, it has greater flexibility in flexible anti-crack mortar.

Typical Application

●Adhesives for ceramic tiles and construction
It is used to make a thin layer of hydraulic adhesive with good frost resistance, we recommend using 30~50% cement, 50~70% quartz sand, 1~4% redispersible latex powder and 0.15~ 0.5% high-viscosity cellulose ether (if anti-sag property is required). If necessary, organic fibers can also be added to improve sag resistance. To make the adhesive have high plasticity at very low temperature (less than 0 ℃).

●Adhesive for exterior wall insulation finish system (EIFS)
The hydraulic powder adhesive used for the exterior wall thermal insulation finish system should contain 25-45% cement, 4-6% redispersible latex powder, and 0.1-0.3% cellulose ether water-retaining agent. The above adhesive has excellent adhesion to the foamed polystyrene board. However, since the plate is made by thermal cutting, it is necessary to pay attention to the plate surface to avoid being too bright. It is important to perform an adhesion test for extruded polystyrene sheets in advance.

●Self-leveling floor
It is recommended to add 1.5~12% of redispersible latex powder and 0.3~0.8% of casein when preparing self-leveling floor materials. To obtain a fast setting system, it is necessary to use Portland cement together with high alumina cement. Usually, a certain defoamer needs to be added.
For self-leveling materials without casein, redispersible latex powder can be used together with other superplasticizers, such as: melamine, lignin sulfonate or naphthalene sulfonate condensate, etc. Excellent effect.

●Plastering mortar
Add 2~4% of redispersible latex powder and mix with 0.2~0.3% of high viscosity fiber ethers for wall smoothing, thin coating of putty, etc., which can significantly improve the adhesion, wear resistance and flexibility of the above materials Sex.

●Plastering and finishing mortar
Adding 1~4% of redispersible latex powder to cement or lime-cement-based decorative plaster can improve its adhesion, wear resistance and flexibility. In addition, it is recommended to add 0.2~0.4% cellulose ether, starch ether or a mixture of the two.

●Internal wall batch material, putty and caulk
According to different strength requirements, it is necessary to add 2~15% of redispersible latex powder, and other organic additives such as cellulose ethers and starch ethers.

●Modification of gypsum and anhydrous gypsum-based materials
Add redispersible latex powder to the repair materials and gypsum board using gypsum as the adhesive, which can improve the flexural strength, impact resistance and adhesion strength of the product. To improve water retention, additives such as cellulose ether can be added. It should be noted that the addition of water-retaining agent and redispersible latex powder N will increase the gas content of the mortar. For some special cases, it may be necessary to add a certain defoamer.
Redispersible latex powder is also very suitable for self-leveling floor materials based on gypsum and anhydrous gypsum. The recommended dosage is 2~6%.

Packaging and storage

It should be stored in a cool and dry place. The recommended period of use is six months. Please use it as early as possible in summer. If it is stored in a place with high temperature and humidity, it will increase the probability of agglomeration. Please use it once after open; After finishing, the bag mouth must be sealed to avoid absorbing moisture from the air.
International standard pp bag: 25kg / bag.

PTMA TECH is a provider of  admixture for construction mortar, coatings & paints and concrete, plastic chemicals, which has three plants with R&D……
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