Waterproofing redispersible polymer powder (RDP) RDP KD-6031H

31 Jul.,2025

Redispersible polymer powder RDP is essentially a powder made from a high molecular polymer emulsion by spray drying. It can be redispersed into an emulsion when it comes into contact with water, restoring its bonding and film-forming properties.RDP KD-6031H has significant waterproofing effects and can have the same effect as Wacker (Vinnapas) 8031H/8034H and celanese, Elotex FX-5600/FLOWKIT 51,

 

Redispersible polymer powder RDP is essentially a powder made from a high molecular polymer emulsion by spray drying. It can be redispersed into an emulsion when it comes into contact with water, restoring its bonding and film-forming properties.

 

Kundu's RDP waterproofing mortar series includes RDP KD 6002N, RDP KD-6044N, RDP KD-6033N, and RDP KD-6031H. In particular, RDP KD-6031H has significant waterproofing effects and can have the same effect as Wacker (Vinnapas) 8031H/8034H and celanese, Elotex FX-5600/FLOWKIT 51, and Dairen DA-1400/DA-3510. Kundu's products are more cost-effective.

Waterproofing redispersible polymer powder (RDP)  RDP KD-6031H

The core advantage of waterproofing RDP lies in the carefully designed "hydrophobic gene" on its polymer chain:

1 Physical barrier and pore structure optimization:

After RDP particles are dispersed, they fill the mortar pores and microcracks. The flexible polymer film formed is like a "sealant", which significantly reduces the porosity and connectivity and blocks the water penetration path.

 

2 Chemical hydrophobic reinforcement:

The key! Waterproofing RDP usually contains special hydrophobic monomers (such as vinyl stearate-VeoVa) or adds high-efficiency hydrophobic agents (such as stearates, organosilanes). These components can migrate to the pore walls and material surfaces during the mortar coagulation and drying process to form a strong hydrophobic layer, giving the mortar a "lotus effect" - making it difficult for water droplets to wet and penetrate.

 

3 Flexibility and crack resistance:

The polymer film formed by RDP enhances the flexibility and deformation capacity of the mortar, effectively buffers the stress caused by temperature changes and base shrinkage, and greatly reduces the generation of microcracks, which are the main channels for water invasion.

 

4 Secondary film formation guarantee:

Even if the mortar is slightly damaged or has microcracks after curing, RDP can still partially redisperse into film when it comes into contact with water, providing a certain self-repairing ability and continuously protecting the waterproof line.

 

Application of waterproofing RDP KD-6031H:

Rigid waterproofing projects: waterproof mortar, waterproof paste (used for basement side walls/floor, kitchen and bathroom, pool, tunnel, etc.).

Exterior wall protection system: exterior wall putty (especially emphasizes water resistance products), plastering/bonding mortar for exterior wall insulation system.

Tile paving: Tile adhesive for wet areas, providing additional waterproof protection.

Repair and sealing: Concrete crack repair mortar, waterproof plugging materials.

Self-leveling mortar: Self-leveling cement for wet environments (such as basements).

Waterproofing redispersible polymer powder (RDP)  RDP KD-6031H

Kundu RDP KD-6031H is a hydrophobic dispersible polymer powder based on vinyl acetate/ethylene/acrylic acid. It has good tensile bonding strength on inorganic surfaces, good hydrophobicity and good processability. If you need, please consult us. 

Waterproofing redispersible polymer powder (RDP)  RDP KD-6031H