RDP introduction
Redispersible Polymer Powder (RDP) is a versatile dry powder material that forms a flexible polymer film when mixed with water. This high-performance additive is manufactured through spray-drying of polymer emulsions, resulting in a free-flowing powder that easily redisperses in water-based systems. Key characteristics include excellent adhesion, water resistance, and flexibility, making it an essential component in modern construction materials.
Main Applications:
• Tile adhesives and grouts for enhanced bonding strength
• Self-leveling floor compounds to improve flow characteristics
• External Thermal Insulation Composite Systems (ETICS)
• Repair and restoration mortars for crack bridging
• Cement-based waterproofing membranes
• Decorative and protective coatings
• Gypsum-based products for improved performance
• Fiber cement boards for better durability
| Items/Types | POLY 810 | POLY 805 | POLY 815 | POLY 795 | POLY 820 |
| Adhesion | Medium | Medium-High | High | Medium-High | High |
| Polymer base | VAE | VAE | VAE | VAE | VAE |
| MFFT/℃ | 2±2 | 2±2 | 2±2 | 2±2 | 2±2 |
| Tg /℃ | 10 | 5 | 15 | -5 | 18-22 |
| Rheological Properties | Medium | Medium | Medium | Medium | Medium |
| Flexibility | Medium | High | Neutral | Excellent | Low |
RDP POLY 805
Product Characteristics:
POLY 805 is an EVA-based redispersible polymer powder with a moderate Tg of 5°C, offering an optimal balance between:
✔ Flexibility (for crack resistance and substrate movement accommodation)
✔ Adhesion strength (excellent bonding to various substrates)
Recommended Application:
- Wall putty & skim coats (primary use, similar to Vinnapas® 5010N)
- Lightweight repair mortars
- Other cement-based formulations requiring balanced workability and cohesion
RDP POLY 810
POLY 810 is a high-performance redispersible polymer powder with a Tg of 10°C, engineered to deliver:
✔ Exceptional adhesion strength (ideal for bonded applications)
✔ Superior water resistance (reduced permeability in cured mortars)
✔ Optimized flexibility/stiffness balance (Tg-tuned for structural integrity)
Primary Applications:
- Tile adhesives (enhanced shear bond strength, comparable to Vinnapas® 5044N)
- ETICS bonding mortars (for insulation boards in exterior systems)
- Waterproofing slurries
- High-strength repair mortars