Key Properties of Redispersible Polymer Powder Empowering High-Performance Building Materials

As dry-mix mortar technology continues to evolve, Redispersible Polymer Powder (RDP) has emerged as an essential functional additive in construction 

materials. With its outstanding physicochemical properties, RDP not only enhances the performance of various mortar systems but also contributes to the 

advancement of sustainable, energy-efficient building solutions.

1. Redispersibility: The Core Technological Advantage

RDP is produced by spray-drying water-based polymer emulsions into a free-flowing powder. When mixed with water, it re-emulsifies into a stable polymer 

dispersion, restoring the original performance of the liquid polymer and forming a continuous polymer film. This unique redispersibility makes RDP a vital 

component in modern dry-mix mortar formulations.

2. Improved Adhesion Strength

RDP forms a tough organic-inorganic composite film between the mortar and substrate or tile surface. This significantly increases both initial adhesion and 

long-term bond durability, effectively preventing issues such as debonding and hollowing.

3. Enhanced Flexibility and Crack Resistance

By introducing flexible polymer chains into rigid cementitious systems, RDP dramatically improves deformation resistance and crack-bridging capability. 

This is especially critical for applications like EIFS (External Insulation and Finishing Systems), heated flooring systems, and other areas requiring high flexibility.

4. Better Workability and Application Properties

Thanks to its excellent wetting and film-forming abilities, RDP improves workability, water retention, and sag resistance in mortars. This leads to easier spreading 

and troweling, reduced material waste, and higher construction efficiency.

5. Superior Water and Weather Resistance

The polymer film formed by RDP provides excellent hydrophobicity and alkali resistance, significantly enhancing the waterproofing and moisture resistance of 

building materials. This makes RDP ideal for use in exterior wall coatings, kitchens, bathrooms, and underground structures.

6. Wide Application Versatility

RDP is widely used in tile adhesives, wall putties, primers, self-leveling compounds, waterproof mortars, gypsum-based systems, and more. Depending on the 

polymer type—such as EVA, VA/VeoVa, or pure acrylic—RDP can be tailored to meet specific functional needs.

Name: Cecilia.Wang

E-Mail:cecilia.wang@jtdf-rdp.com

Mobile:+86 190 3451 3486（Whatsapp）