Why add redispersible polymer powder in wall putty
Redispersible Polymer Powder (RDP) is commonly added to wall putty formulations for several reasons. Here are some key benefits of incorporating RDP into wall putty:
- Improved Adhesion: RDP enhances the adhesion of wall putty to various substrates, including concrete, masonry, and plaster. This improves the bonding strength between the putty and the wall surface.
- Increased Flexibility: The addition of RDP imparts flexibility to the wall putty. This is important because walls can experience slight movements or vibrations, and a flexible putty is better able to accommodate these changes without cracking.
- Reduced Cracking: RDP helps in reducing the occurrence of cracks in the wall putty. It enhances the overall durability of the putty layer, providing a smoother and more crack-resistant finish.
- Water Retention: RDP is known for its water retention properties. Incorporating RDP in wall putty formulations helps to retain water during the curing process. This is beneficial for maintaining proper hydration of the cement particles and ensuring the development of a strong and durable putty layer.
- Improved Workability: RDP acts as a rheology modifier, improving the workability and spreadability of the wall putty. This makes it easier to apply the putty evenly on the wall surface, resulting in a smoother finish.
- Enhanced Weather Resistance: The use of RDP contributes to the weather resistance of wall putty. It helps protect the putty layer from the effects of weathering, such as exposure to sunlight, moisture, and temperature variations.
- Better Impact Resistance: RDP can enhance the impact resistance of wall putty, making it more resilient to minor impacts or abrasions.
