Introduce of Redispersible Polymer Powder RDP Made from Ethylene Vinyl Acetate Copolymer Emulsion

Redispersible Polymer Powder (RDP), also known as redispersible latex powder, is a powdered polymer formed by spray drying of polymer emulsion. This powder can be dispersed again to form a stable emulsion after contacting water. It is widely used in construction chemicals such as dry-mix mortars, tile adhesives, plastering mortars, and self-leveling floor materials to enhance the adhesion, waterproofness, and Flexibility and durability.

Features of Redispersible Polymer Powder RDP Made from Ethylene Vinyl Acetate Copolymer Emulsion

Enhanced bonding force: Significantly improve the bonding strength between mortar and other base materials, reducing hollowing and falling off.

Improve flexibility: Give cement-based materials better stretchability and crack resistance, effectively resisting cracking caused by temperature changes and vibration.

Improve durability: Enhance the material’s impermeability, freeze-thaw resistance and chemical corrosion resistance to extend its service life.

Easy construction: Improve the plasticity and opening time of mortar to facilitate construction operations and adjustments.

Environmental protection: no solvent evaporation, meets environmental protection requirements, and is suitable for green building construction.

Good compatibility: Compatible with a variety of cement-based materials and can be widely used in different types of building materials.

Specification of Redispersible Polymer Powder RDP Made from Ethylene Vinyl Acetate Copolymer Emulsion

Redispersible Polymer Powder (RDP) – Ethylene Vinyl Acetate Copolymer

Product Overview

This redispersible polymer powder (RDP) is made from a stable ethylene vinyl acetate (EVA) copolymer emulsion. The liquid emulsion is spray-dried with protective colloids to form a free-flowing, white powder. When mixed with water, the powder redisperses into a film-forming polymer that enhances performance in dry-mix construction products.

Key Features

Strong adhesion: Binds well to cement, wood, metal, and other common building materials.
Flexibility: Improves crack resistance and reduces brittleness in mortars and plasters.
Water retention: Helps maintain moisture during curing for better hydration of cement.
Durability: Resists aging, UV exposure, and repeated wet-dry cycles.
Ease of use: Mixes easily into dry blends without clumping or dust issues.

Typical Applications

This RDP is widely used in:
– Tile adhesives and grouts
– Exterior insulation finishing systems (EIFS)
– Self-leveling underlayments
– Repair mortars and renders
– Waterproofing slurries and coatings

Technical Properties

Appearance: White, free-flowing powder
Solid content: ≥98%
Ash content: 10–15% (at 600°C)
Minimum film-forming temperature (MFFT): ~5°C
Bulk density: 450–550 g/L
Particle size: Passes through 150 µm sieve

Handling and Storage

Store in a cool, dry place away from direct sunlight. Keep bags sealed to prevent moisture absorption. Use within 12 months of production date for best results. Avoid contact with eyes and skin. Wear standard protective gear during handling.

Applications of Redispersible Polymer Powder RDP Made from Ethylene Vinyl Acetate Copolymer Emulsion

Applications of Redispersible Polymer Powder (RDP) from Ethylene Vinyl Acetate Copolymer Solution

Improved Performance in Construction Materials

Redispersible polymer powder (RDP) made from ethylene plastic acetate (EVA) copolymer solution is commonly utilized in contemporary structure products. When mixed with water, the powder go back to its initial polymer type. This provides building and construction products better flexibility, bond, and toughness.

Floor tile Adhesives
RDP improves bond stamina in between ceramic tiles and substrates. It minimizes the risk of floor tiles diminishing wall surfaces or floorings. The powder also aids the glue keep adaptable after drying out. This protects against splits brought on by temperature level adjustments or building activity.

Outside Insulation Finishing Solution (EIFS)
In EIFS, RDP improves the sturdiness of base and coating layers. It makes the system extra resistant to weather, impact, and aging. Coatings with RDP hold up better over time and need fewer fixings.

Cement-Based Renders and Plasters
Including RDP to renders boosts workability and water retention. Workers find the mix much easier to use. The last surface area stands up to breaking and water penetration. This results in longer-lasting wall surfaces with a smoother surface.

Self-Leveling Underlayments
For floor covering systems, RDP improves flow and cohesion. It aids the material spread evenly without dividing. After hardening, the underlayment stays solid and bonds well to the flooring over.

Repair service Mortars
RDP makes fixing mortars stick far better to old concrete or stonework. It also improves flexural stamina. This means fixed locations can manage stress without damaging again soon.

Makers choose EVA-based RDP because it carries out well in lots of climates. It functions dependably in both completely dry and moist problems. The powder blends quickly right into dry-mix products. This maintains production simple and regular. Building contractors trust these products for quality results on every task.

Company Profile

We are the global leader in lightweight concrete and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012’s.

We can supply high-quality concrete admixture and foam concrete related products all over the world.

The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are interested, please feel free and contact us.

Payment

T/T, Western Union, Paypal, Credit Card etc.

Shipment

By air, by sea, by express, as customers request.

5 FAQs of Redispersible Polymer Powder RDP Made from Ethylene Vinyl Acetate Copolymer Emulsion

Frequently Asked Questions About Redispersible Polymer Powder (RDP)

What is Redispersible Polymer Powder (RDP)?

RDP is a free-flowing powder made from ethylene vinyl acetate (EVA) copolymer emulsion. It is created by spray-drying the emulsion with protective colloids. When mixed with water, it redisperses back into a polymer film. This film improves adhesion, flexibility, and durability in construction materials.

Why use RDP in construction products?

RDP boosts performance in dry-mix mortars like tile adhesives, exterior insulation systems, and self-leveling compounds. It makes the mix stick better to surfaces. It also reduces cracking and increases water resistance. These benefits help extend the life of the finished product.

How does RDP improve workability?

RDP acts as a binder that enhances cohesion in the wet state. This means the mix stays smooth and easy to spread. Workers can apply it without it sagging or sliding off vertical surfaces. The improved consistency saves time and reduces waste on the job site.

Is RDP compatible with other additives?

Yes. RDP works well with common cement-based systems and standard additives like cellulose ethers, starch ethers, and defoamers. Always test the final mix for stability and performance before large-scale use. Compatibility ensures consistent results across different formulations.

How should RDP be stored?

Store RDP in a cool, dry place away from moisture. Keep the bags sealed until use. Exposure to humidity may cause caking or partial redispersion, which affects performance. Use within the shelf life indicated on the packaging for best results.