Klasse FireFend® FR Acrylic Sealant 600ml Green

Klasse FireFend® Fire Rated Acrylic Sealant is a halogen free, polymer emulsion-based sealant that swells when subjected to temperatures in excess of 125°C and forms a char coat that restricts the passage of smoke and fire. It is easily applied and dries to a flexible and smooth surfaced material which provides movement capability in fire rated linear joint and penetration seals. It is readily over paintable. It has excellent adhesion to a wide range of substrates and will not harden or crack with age.

FireFend® FR Acrylic forms a fire and smoke seal in joints up to 35mm wide without slumping. It is ideal for sealing joints:
   • In and around internal partitions where flexibility may be required.
   • Linear gap seals. Vertical or horizontal at head or foot of wall.
   • Penetration seals around metal pipes.
If the sealant is to be overpainted, building regulations may require a fire-resistant coating.

FireFend® FR Acrylic Sealant (12.5%) is not suitable in joints where movement exceeds + or - 12.5% of joint width, or in external joints.