VAE Redispersible Polymer Powder
VAE Redispersible Polymer Powder (VAE RDP) is a specific type of Redispersible Polymer Powder that is based on a copolymer of vinyl acetate and ethylene (VAE). This type of polymer powder is widely used in the construction industry as an additive in cementitious products, such as mortars, adhesives, and coatings. Here’s more information about VAE Redispersible Polymer Powder:
1. Composition: VAE Redispersible Polymer Powder is primarily composed of vinyl acetate and ethylene monomers that are copolymerized to form a water-soluble polymer. During the manufacturing process, this polymer is transformed into a powdered form through a spray-drying process, allowing it to be easily redispersed in water.
2. Properties and Functions: VAE RDP offers a range of beneficial properties to cementitious products:
- Enhanced Adhesion: VAE RDP improves the adhesion of cement-based materials to various substrates, including concrete, masonry, and tiles.
- Flexibility: It imparts flexibility to mortars and coatings, reducing the likelihood of cracking due to minor movements or stresses.
- Workability: VAE RDP improves the workability and application properties of products, making them easier to mix, spread, and shape.
- Durability: It enhances the resistance of products to water, weathering, and abrasion, contributing to their longevity.
- Reduced Shrinkage: The polymer’s characteristics can help reduce drying shrinkage in cementitious materials, which helps minimize cracking.
- Improved Impact Resistance: VAE RDP increases the impact resistance of materials, making them more suitable for demanding conditions.
3. Applications: VAE Redispersible Polymer Powder finds extensive use in various construction applications:
- Tile Adhesives: It’s commonly added to tile adhesives to improve their bonding strength, flexibility, and water resistance.
- Exterior Insulation and Finish Systems (EIFS): VAE RDP enhances the performance and durability of EIFS coatings.
- Skim Coats and Renders: It’s used in skim coats and renders to enhance workability, adhesion, and crack resistance.
- Self-Leveling Compounds: VAE RDP improves the flow and leveling properties of self-leveling underlayments.
- Repair Mortars: It’s added to repair mortars to enhance adhesion and durability.
- Cementitious Paints and Coatings: VAE RDP can also be used in paint formulations to improve adhesion and flexibility.