Redispersible Polymer Powder (RDP) for Construction Mortar, Wall Putty, Wall Coatings

Redispersible Polymer Powder (RDP)

Redispersible Polymer Powder is a free-flowing, white powder obtained by spray-drying polymer emulsions (typically vinyl acetate-based copolymers). When mixed with water, RDP re-emulsifies, forming a stable dispersion that regains the adhesive, flexible, and binding properties of the original emulsion.

Key Features:

• Water-redispersible: Reforms a polymer film upon drying.

• Enhanced adhesion: Improves bond strength in mortars and coatings.

• Flexibility & crack resistance: Reduces brittleness in cementitious systems.

• Thermal stability: Performs across a wide temperature range.

Common Polymer Bases:

• Vinyl Acetate Ethylene (VAE)

• Acrylics

• Styrene-Butadiene

Applications:

1. Construction Materials:

• Tile adhesives, exterior insulation systems (ETICS), self-leveling compounds.

• Improves workability, water retention, and durability of cement-based products.

2. Dry-Mix Mortars:

• Enhances flexibility, abrasion resistance, and cohesion.

3. Paints & Coatings:

• Modifies texture and adhesion in powder coatings.

4. Textiles & Paper:

• Binder for non-woven fabrics or paper coatings.

Advantages:

Easy storage & handling: Powder form extends shelf life vs. liquid emulsions.

• Eco-friendly: Low VOC emissions compared to solvent-based alternatives.

RDP is a critical additive in modern construction chemistry, bridging the gap between polymer performance and dry-mix convenience. Let me know if you need details on specific grades (e.g., hydrophobic RDP) or technical standards