Soudaflex 20LM - Polyurethane sealant for facades - Soudal

Soudaflex 20LM - Polyurethane sealant for facades - Soudal

Soudaflex 20LM is a low-modulus polyurethane sealant for construction, expansion, and facade joints. Ideal for proper hardening and good adhesion to porous substrates.

Features :

• Very malleable.
• Permanent elasticity after polymerization.
• Very good adhesion to many materials
• Good resistance to UV rays.
• Low indentation factor.

Applications:

• All common construction joints.
• Connecting joints between window and door frames.
• Expansion joints between the most diverse building materials.
• Joints with significant movement.

Packaging:

• 600ml cartridge.
• Colour: Concrete grey, basalt grey, dark beige, medium grey, brown, white, black and shadow grey.

FAQ - Frequently Asked Questions

1. Is the Soudaflex 20LM suitable for outdoor use?
   Yes, it is specifically designed for outdoor use. It is perfectly resistant to UV rays, rain, frost, and temperature variations.
2. Can Soudaflex 20LM be painted?
   Yes, the filler can be painted after it has fully hardened. It is recommended to do a test beforehand, especially with water-based paints.
3. What is the difference between Soudaflex 20LM and 40FC?
   The 20LM is a low modulus sealant, ideal for facade joints subject to strong movement, while the 40FC is more rigid and more suitable for bonding and structural joints.
4. Is it compatible with natural stone?
   Yes, Soudaflex 20LM is compatible with natural stone, but it is advisable to carry out a preliminary test to avoid any risk of migration or staining depending on the type of stone.
5. Should a primer be used?
   In most cases, no primer is necessary. However, on very porous or specific surfaces, a primer can improve adhesion.
6. What is the lifespan of the seal?
   When properly applied, the sealant offers durability for several years, even in harsh outdoor environments.