Firesilicone B1 FR is a high quality, neutral, elastic, one-component sealant based on silicones which conforms to the DIN4102 B1 standard for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations (EN 1366 Part 4 – NN713.020 – BS 476/20).

• Neutral curing silicone
• Fire-rated up to 4 hours
• Fire-retardant DIN4102 B1 standard
• Permanently elastic
• Prevents the passage of smoke and gas through a joint

• Very easy to apply
• Colourfast and UV-resistant
• Remains permanently elastic after full cure
• Very good adhesion on most surfaces
• Low modulus
• DIN 4102-Part 2: Class B1
• Up to 4 hours fire rating with normal PE backing material

All usual building substrates