VAE emulsion redispersible polymer powder (RDP) is a type of polymer that is used in the construction industry, particularly in the formulation of tile adhesives. RDP is made by spray-drying a water-based emulsion of VAE (vinyl acetate-ethylene) copolymer. The resulting powder is free-flowing and can be easily re-dispersed in water to form a stable polymer emulsion.
RDP has a number of properties that make it well-suited for use in tile adhesives. These properties include:
- Good water retention: RDP helps to keep the water in the tile adhesive, which prevents it from drying out too quickly. This is important for ensuring that the adhesive has enough time to set properly.
- High strength: RDP helps to increase the strength of the tile adhesive, which makes it more resistant to cracking and breaking.
- Good adhesion: RDP helps to improve the adhesion of the tile adhesive to the substrate, which ensures that the tiles are securely bonded in place.
- Flexibility: RDP helps to make the tile adhesive more flexible, which makes it less likely to crack or break when the substrate moves or expands.
In addition to its use in tile adhesives, RDP can also be used in a variety of other construction applications, such as:
- Finishing plasters
- Troweling compounds
- Thin set mortars
- Sealing slurries
RDP is a versatile and effective polymer that can be used to improve the performance of a wide range of construction materials.
Here are some additional benefits of using VAE emulsion RDP in tile adhesives:
- It can help to improve the water resistance of the adhesive, making it less likely to delaminate.
- It can help to increase the bond strength of the adhesive, making it more resistant to cracking and breaking.
- It can help to improve the flexibility of the adhesive, making it less likely to crack or break when the substrate moves or expands.
- It can help to reduce the drying time of the adhesive, making it faster to install tiles.
- It can help to improve the overall performance of the adhesive, making it a more reliable and durable product.