Trustworthy Redispersible Polymer Powder(RDP) Manufacturer

Professional Redispersible Polymer Powders Supplier

What is Redispersible Polymer Powder

Redispersible polymer powders (RDP) are white, free-flowing powders produced through the spray-drying of polymer dispersions. When mixed with water, these powders can break apart and reproduce individual polymer dispersions that possess the same characteristics as the original. Widely use in tile adhesive, tile grout, wall putty, repair mortars, EIFS mortars, and self-leveling compounds, Rigid RDP enhances the performance of products with improved adhesion, tensile strength, crack resistance, and water retention in construction.
Compared with other types of RDP, Rigid RDP holds minimal elasticity and offers a stronger adhesion. So it is especially suited for products requiring firm adhesion.

MICHEM: Your Reliable Redispersible Polymer Powder Supplier

Redispersible PolymerPowder(RDP), alsoknown as VAE RDP, is a high-performance additivethat provides essential benefits in constructionapplications. Produced from vinyl acetate-ethylenecopolymer emulsions through a spray-dryingprocess, RDP is a free-flowing, water-dispersiblewhite powder. When integrated into dry mortarformulations, Michem’s VAE RDP significantlyenhances properties such as adhesion to varioussubstrates, cohesion within the mortar matrix, andbonding strength.
MICHEM offers OEM solutions and a tailored formula guide for your specific needs. Also, we offer free sample to help you test.

4 Main Benefits of MICHEM Rigid Redispersible Polymer Powder

Improved Adhesion

MICHEM Rigid RDP significantly enhances the adhesion between the material and the base material (e.g. concrete, tile, steel) through the synergistic action of polymer and cement hydration products.

Water Resistance

MICHEM Rigid RDP forms a dense network structure in the cement matrix, which effectively closes the capillary pore channels and reduces the water absorption rate, allowing the material to remain stable in long-term wet environments.

Improved Durability

The addition of MICHEM Rigid RDP improves the mortar’s ability to withstand shear stress, resulting in a lower wear rate and higher abrasion resistance, extending the service life of the mortar.

Thermal Stability

MICHEM Rigid RDP has a high glass transition temperature and does not soften easily at high temperatures.
At the same time, the coefficient of thermal expansion of rigid RDP matches that of concrete, reducing the risk of cracking caused by temperature difference stresses.

Overview and Specification of MICHEM's Redispersible Polymer Powder Product

Redispersible polymer powder (RDP) is derived from spray-dried polymer emulsion. It retains the properties of the original emulsion upon re-emulsification with water. This enables the formation of a film upon water evaporation, ensuring consistent final performance for your tasks

Overview of MICHEM Rigid Redispersible Polymer Powder

Recommended Redispersible Polymer Powder Products

Grade	Type	Polymer type	Protective colloid	Solid content(%)	Ash content(%)	Bulk density(g/l)	Tg(℃	MFFT(℃)	PH Value
5010R	standard	VAE	PVA	≧99	14±2	400-600	15	4	6-8
5030FN	High performance	VAE	PVA	≧99	12±2	400-600	15	4	6-8
5034H	levelling	VAE	PVA	≧99	12±2	400-600	15	4	6-8
5002T	Premium quality	VA/E/VV	PVA	≧99	12±2	400-600	10	4	6-8

Packaging and Delivery Information of Redispersible Polymer Powder

MEIKAI offers customized packaging and trustworthy logistic service globally.

Shipping Coverage: Global.
Packaging: 25 kg/bag. Customized Packaging.
Delivery Time: 7-15 day delivery. Vary depending on your location and shipping methods.
Payment Options: T/T, LC, OA.
Transportation: sea transport

MICHEM Promises to You

As a professional Chinese manufacturer of RDP, MEIKAI strives to provide you with the most effective products and the best services, including

Streamlined Global Supply

Deliver products from the 3 advanced factory directly

Tailored Service

Provide personalized product formulations and packaging options to meet your exact requirements

Reliable Logistics

Guarantees secure and efficient 7-14 working days with a global shipping network

Diverse Payment Options

Support flexible transactions, including T/T, L/C, PayPal, and other convenient methods

Quality Certification

Guarantee superior product consistency and performance with ISO 9001 systems

Eco-friendly Fabricating Processes

Adopt energy-efficient technologies, and implement waste management strategies

Test a FREE Sample and Unlock the Benefits!

Partner with us for tailored RDP solutions. MikaVAE® Rigid Redispersible Polymer will elevate your products’ quality and efficiency.

MICHEM is glad to send you free rigid RDP chemical samples for your consideration. At the same time, we are capable of offering modifications based on client needs and providing new solutions accordingly. Contact us today to experience the benefits!

What we offer:

4 Main Applications of Michem Redispersible Polymer Powder

Tile Adhesive

When mixed with cementitious binders, rigid RDP forms a cohesive polymer film that bridges gaps between tiles and substrates, ensuring strong bonding even under dynamic loads or thermal expansion.
Rigid redispersible polymer powder’s hydrophobic properties reduce water absorption, minimizing efflorescence and tile displacement in wet areas like bathrooms.
Additionally, rigid RDP improves open time and adjustability, allowing installers to reposition tiles without compromising bond strength.
The powder also contributes to crack resistance by distributing stress across the adhesive layer, ensuring long-term durability of production.

Repair Mortar

In repair mortars, rigid RDP acts as a key modifier to ensures excellent adhesion to old concrete or masonry surfaces, even in structurally compromised areas.
The polymer phase fills microcracks and pores, creating a dense matrix that resists water ingress and carbonation, thereby protecting reinforcement bars from corrosion.
Rigid RDP also improves freeze-thaw resistance and reduces brittleness, making repair mortars suitable for outdoor or load-bearing applications.
Furthermore, rigid RDP enhances workability, enabling precise application on vertical or overhead surfaces while minimizing sagging.

EIFS (Exterior Insulation and Finishing Systems)

Rigid RDP is integral to EIFS base coats and finishing layers, providing critical adhesion between insulation boards (e.g., EPS) and substrates.
It ensures crack resistance in the reinforced base coat even under wind loads or thermal cycling.
The powder’s water resistance properties protect the insulation layer from moisture damage while maintaining breathability to prevent vapor trapping.
In finish coats, rigid RDP enhances impact resistance, color retention, and weatherability, ensuring long-term aesthetics.

Self-leveling Compounds

Rigid redispersible polymer powder optimizes self-leveling compounds by balancing flowability, strength, and stability.
It reduces water content while enhancing workability, enabling rapid curing and high strength—ideal for time-sensitive projects.
Rigid RDP ensures seamless adhesion to uneven substrates (e.g., concrete, flooring residues) without primers, even in thin layers.
Additionally, the polymer’s flexibility can prevent delamination, and ensure reliability under dynamic loads and environmental stress.

MICHEM: Your Trustworthy Redispersible Polymer Powder Manufacturer

MIHCEM, a prominent enterprise in China, is at the forefront of innovative research, development, and production for building materials additives, and dry-mix mortar.

Innovative R&D Capabilities

As a leading Redispersible Polymer Powder (RDP) manufacturer, MICHEM prioritizes cutting-edge research and development to drive industry advancements. Our dedicated R&D team, equipped with state-of-the-art laboratories, focuses on optimizing material performance, sustainability, and application versatility. MEIKAI develops innovative solutions for building materials, assisting clients in identifying the most suitable grades for their specific applications while also helping them reduce costs. MICHEM consistently delivers breakthrough formulations that exceed market demands.

Stringent Quality Control

MICHEM operates a construction application laboratory dedicated to conducting material application tests. Equipped with 14 three-layer filters and multiple vibrators to fully filter impurities and large particles in the emulsion, the finished RDP quality is more stable. What’s more, MICHEM is certified by ISO 9001 and REACH to ensure every material meets global regulatory and client-specific specifications. Additionally, the RDP formulations have low levels of volatile organic compounds (VOCs) and contain no harmful substances, minimizing their environmental influence.

Client-Centric Service Excellence

We empower our partners with tailored support and agile responsiveness. And we are capable of making modifications based on client feedback from testing and providing new solutions accordingly. A 24/7 global support network ensures seamless communication. At the same time, our big warehouse and flexible logistics framework guarantee on-time delivery, even for urgent orders. OEM and ODM services both are available. By fostering long-term partnerships, we align our growth with client success, offering transparent collaboration and continuous improvement initiatives.

Frequently Asked Questions

1. What are the differences between rigid, neutral, and flexible RDP and their application areas？

Selecting the optimal redispersible polymer powder (RDP) depends on balancing mechanical requirements, environmental conditions, and substrate compatibility.
Rigid RDP forms rigid high-strength films. It excels in high compressive and flexural strength, making it ideal for structural mortars, heavy-duty tile adhesives, and industrial coatings.
Neutral RDP balances strength and moderate flexibility. Widely used in external insulation systems and decorative putties, it combines adhesion with flexibility for dynamic environments.
Flexible RDP offers high elasticity and crack-bridging ability, critical for applications like anti-seismic mortars, acoustic coatings, and bridge deck waterproofing.

2. How to store the rigid RDP and for how long?

Rigid RDP is expected to be stored in a dry and cool environment. It is recommended to use within 6 months. They should be stored against direct sunlight, moisture, and clumping.

3. How do I get a free sample?

MEIKAI is pleased to send you a free sample of MikaVAE Rigid RDP chemistry for your consideration. Additionally, we provide a detailed TDS/Brochure. We offer quick delivery via DHL, FEDEX, or TNT straight to your location. And we will assist you with formula adjustments and expert guidance. Request your FREE sample now for improved performance!

4. Can you produce RDP for specific customer requirements?

Yes, we are capable of producing custom-modified grades of Redispersible Polymer Powder to align with specific customer needs. Our skilled technical team and state-of-the-art laboratories are prepared to develop personalized solutions based on unique customer requests. For more details, you can contact MEIKAI’s sales representatives.

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