Acrylic Redispersible Polymer Powder for Mortar
CAS Number: 9003-01-4
Acrylic-based redispersible polymer powder (RDP) is a spray-dried acrylic latex that provides superior weathering resistance, UV stability, and water resistance compared to VAE-based RDPs. When incorporated into dry-mix mortars, it forms a durable flexible film that improves adhesion, tensile bond strength, and long-term durability. It is especially valued in exterior applications such as ETICS base coats, waterproofing mortars, and exterior tile adhesives.
Technical Specifications
| appearance | White free-flowing powder |
| ash content (%) | 8±2 |
| pH (10% solution) | 4.5-6.5 |
| solid content (%) | 98±1 |
| minimum film forming temperature (°C) | 5–15 |
Applications
- Exterior ETICS base coat and finish coat mortars
- Exterior tile adhesives for facade applications
- Waterproofing mortars and coating systems
- Flexible repair mortars for exterior concrete
- Decorative exterior renders and textured coatings
Key Features
- Superior UV and weathering resistance for exterior applications
- Higher water resistance compared to VAE-based polymer powders
- Excellent adhesion on difficult substrates including PVC and metal
- Available in a range of Tg values for stiff to highly flexible mortars
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