Rdp for External Insulation and Finish System

Rdp for External Insulation and Finish System

RDP, or Redispersible Polymer Powder, plays a crucial role in Exterior Insulation and Finish Systems (EIFS). It acts as a multi-functional additive, offering several benefits to this popular building cladding system:

1. Enhanced Adhesion: RDP strengthens the bond between various components of the EIFS. It creates a strong connection between the base coat (typically a cementitious mixture) and the insulation board, ensuring the system’s long-term structural integrity.

2. Improved Flexibility and Crack Resistance: RDP enhances the overall flexibility of the EIFS, making it more resistant to cracking caused by thermal expansion and contraction or building movement. This is particularly important for maintaining the system’s watertightness and preventing moisture infiltration.

3. Additional Benefits: Aside from the two main points above, RDP offers other advantages:

• Improved workability: It makes the EIFS mix easier to apply and manipulate during installation.
• Increased impact resistance: RDP can contribute to better impact resistance of the finished EIFS system.
• Reduced water absorption: It helps to improve the water repellency of the EIFS, further enhancing its weather resistance.