When a fire ignites, it spreads by air movement between rooms, through unsealed penetrations in the walls and lumber. Building codes require the use of a draft stopping sealant in these spots, to reduce the potential spread of fire and help isolate flames to a single room. Fire Block Extreme is the perfect solution.

Engineered to seal with a single application in temperatures as low as -4°, Fire Block Extreme is our most popular fire block foam, designed to work well with our Extreme Temp window & door foam, in locations requiring the orange color for easy identification by inspectors.

Features

• Type V residential fire block
• Works well between -4°F and 100°F (-20°C and 38°C)
• Works well at any humidity level
• High-yield formula
  
  

24 oz can