From tile adhesives and EIFS to repair mortars and self-leveling compounds, our RDP solutions are developed around real formulation and application requirements.
MIKEM manufactures Redispersible Polymer Powder (RDP) for dry-mix mortar and construction applications, helping improve adhesion, flexibility, cohesion, crack resistance and long-term durability.
Redispersible Polymer Powder (RDP) is a functional polymer additive widely used to modify the performance of cement- and gypsum-based dry-mix materials.
MIKEM RDP is based on Vinyl Acetate-Ethylene (VAE) copolymer technology. When dry mortar is mixed with water, RDP redisperse into polymer particles. During drying and curing, these particles form a polymer film throughout the mortar structure.
This polymer modification helps create stronger bonding between mortar components and substrates while improving flexibility, cohesion and resistance to cracking.
MIKEM provides different RDP grades for different formulation requirements, from general-purpose bonding to applications requiring greater flexibility and deformation resistance.
MIKEM provides VAE-based Redispersible Polymer Powder in different performance grades for dry-mix construction formulations.
| Item | Details |
| Product Name | Redispersible Polymer Powder (RDP) |
| Polymer Base | Vinyl Acetate-Ethylene (VAE) |
| CAS No. | 24937-78-8 |
| Appearance | White or off-white free-flowing powder |
| Grade Options | Rigid / Semi-Flexible / Flexible / Ultra-Flexible |
| Application | Dry-mix mortar and construction materials |
| OEM / Customization | Available |
| Free Samples | Available |
| Standard Packaging | 25 kg/bag |
| MOQ | 1,000 kg |
Regardless of whether you require general advice or specific support, we are happy to help you.
RDP does more than simply mix into mortar. Its performance develops as the mortar moves from mixing to curing.
When water is added to the dry mix, RDP redisperse into fine polymer particles throughout the mortar.
The polymer particles distribute between cement, fillers, aggregates and other components in the formulation.
As hydration and drying progress, the dispersed polymer particles gradually form a continuous polymer film.
The polymer network helps improve bonding, flexibility, cohesion and the mortar’s ability to accommodate stress.
RDP modifies the internal structure of mortar, helping balance the rigidity of mineral binders with the performance of a polymer phase.
Improves bonding between mortar and different substrates, supporting more reliable adhesion in tile adhesives, EIFS and repair systems.
A more flexible polymer-modified structure helps reduce the propagation of microcracks caused by shrinkage, stress and substrate movement.
Introduces polymer modification that helps cured mortar accommodate movement and deformation more effectively.
Strengthens internal bonding within the mortar system and helps maintain material integrity after curing.
Suitable RDP grades can contribute to smoother handling and application performance in dry-mix formulations.
Improved adhesion, cohesion and flexibility help construction materials maintain performance under demanding service conditions.
Different mortar systems require different balances of adhesion, flexibility, cohesion and mechanical performance.
RDP improves bond strength and flexibility, helping tile adhesive accommodate substrate movement and provide more reliable adhesion.
Supports adhesion between insulation boards, base coats and substrates while improving flexibility and crack resistance in exterior insulation systems.
Improves cohesion, surface strength and bonding while supporting a smoother and more durable finished surface.
Helps improve bonding to existing substrates while increasing flexibility and durability in repaired areas.
Selected RDP grades help balance bonding, cohesion and mechanical performance in flooring formulations.
Polymer modification can improve cohesion, adhesion and durability in cement-based grout systems.
The right RDP should be selected according to the performance required from the finished mortar, not simply by choosing a polymer powder based on price or dosage. MIKEM provides different RDP performance directions to support different construction systems.
Designed for formulations where bonding strength, cohesion and structural stability are primary requirements.
Suitable for:
Wall putty · Skim coat · General dry-mix mortar
Provides a balanced combination of adhesion, strength and moderate flexibility for general construction formulations.
Suitable for:
Tile adhesive · Repair mortar · General-purpose mortar
Developed for formulations and systems requiring stronger deformation capability and crack resistance.
Suitable for:
High-performance tile adhesive · EIFS / ETICS · Flexible mortar
Designed for demanding formulations where high flexibility and movement accommodation are crucial performance targets.
Suitable for:
Specialty tile adhesive · Exterior insulation systems · High-flexibility mortar
Choosing RDP is not only about choosing a polymer. Cement type, filler system, cellulose ether, water demand, RDP dosage, curing conditions and other additives can all influence final mortar performance. MIKEM works with customers around the complete formulation.
High-performance dry-mix mortar rarely depends on a single additive. Used as part of a properly designed formulation, these additives can work together to create a more balanced mortar system.
RDP powder is commonly used in tile adhesives, wall putty, skim coats, EIFS mortars, self-leveling compounds, tile grouts, and repair mortars. It helps improve bonding strength, crack resistance, and overall mortar performance.
RDP refers to a broad category of redispersible polymer powders, while VAE RDP is made from vinyl acetate-ethylene copolymers. VAE-based RDP is widely used in construction because of its good adhesion, flexibility, and compatibility with cement-based materials.
RDP for tile adhesive enhances bonding strength, flexibility, and resistance to cracking. It helps the adhesive maintain reliable bonding performance under temperature changes and minor substrate movement.
Choosing the right RDP grade depends on the required adhesion, flexibility, water resistance, and application. MIKEM offers rigid, semi-flexible, flexible, and ultra-flexible RDP grades to meet different construction formulation needs.
Yes. Suitable RDP grades can help reduce water absorption and improve the moisture resistance of cement-based mortars. The actual performance depends on the RDP grade, dosage, and complete mortar formulation.
Yes, Mikem is a direct manufacturer with our factory in China, producing 40,000 tons annually. This ensures quality control, competitive pricing, and reliable supply for all your needs.
The primary raw material for Redispersible Polymer Powder (RDP) is Vinyl Acetate-Ethylene (VAE) emulsion, which undergoes spray drying to form the powder. This high-quality base material gives RDP its excellent adhesion, flexibility, and water resistance properties for construction applications.
Absolutely. Our team has spent years developing and refining product formulas to match the performance of major brands. Mikem’s solutions are reliable, cost-effective, and designed to work seamlessly in the same applications, without compromising on quality.
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