vita RDP® Redispersible Polymer Powder
vita RDP® is a spray-dried, free-flowing powder that redistributes into an emulsion when mixed with water. It forms a flexible and adhesive polymer film upon drying and offers good storage stability and flowability. The powder can be pre-mixed with cement, fillers, and additives, simplifying on-site preparation and improving construction efficiency and quality.
Product Composition
Polymer Resin: Core functional component.
Additives: Enhance performance and application range.
Protective Colloid: Hydrophilic coating, usually polyvinyl alcohol.
Anti-caking Agent: Fine mineral filler to prevent caking.
vita RDP® redispersible polymer powder is classified into four grades:
8011: White or light yellow, free-flowing powder. Solid content ≥98.0%, ash content 18% ±2, bulk density 500−600 g/l, particle size ~80 μm, pH value 5.0-8.0, minimum film-forming temperature 0℃, glass transition temperature 16℃, non-hydrophobic.
8012: White or light yellow, free-flowing powder. Solid content ≥98.0%, ash content 15% ±2, bulk density 500−600 g/l, particle size ~80 μm, pH value 5.0-8.0, minimum film-forming temperature 0℃, glass transition temperature 3℃, non-hydrophobic.
8013: White or light yellow, free-flowing powder. Solid content ≥98.0%, ash content 12% ±2, bulk density 500−600 g/l, particle size ~80 μm, pH value 5.0-8.0, minimum film-forming temperature 0℃, glass transition temperature -8℃, non-hydrophobic.
8513: White or light yellow, free-flowing powder. Solid content ≥98.0%, ash content 12% ±2, bulk density 500−600 g/l, particle size ~80 μm, pH value 5.0-8.0, minimum film-forming temperature 0℃, glass transition temperature 3℃, hydrophobic.
4. Applications
vita RDP® is used as an additive in building materials, enhancing modified polymer mortars for improved adhesion, flexibility, and durability. It is suitable for tile adhesives, bonding mortars, plasters, self-leveling mortars, putties, decorative plasters, dry coatings, joint fillers, repair mortars, and waterproof sealants.
5. Product Benefits
Adhesion: Enhances bonding strength.
Workability: Improves workability with micro-bubbles.
Flexibility: Increases flexibility and crack resistance.
Abrasion Resistance: Enhances surface strength.
Water Resistance: Improves water resistance and prevents leaks.
Hydrophobicity: Reduces efflorescence and alkali discharge, enhancing aesthetics.