Nullifire FS703 Fire Resistant Silicone Sealant- White

Nullifire FS703 previously known as (M703) is a Low Modulus fire-resistant sealant for high-movement joints (up to 50 %). For internal and external use. Used in various construction sites across the UK. Ideal for use on masonry to masonry, steel to steel, masonry to timber, and masonry to steel.

• Up to 4 hours fire resistance - Tested to EN 1366-4.
• Tested in gaps 10 - 220 mm.
• Ideal for joints in flexible walls, rigid walls & floors, windows & door frames.
• Airtight up to 600 Pa.
• Superior elasticity.
• Excellent tooling properties.
• UV & weather resistance.
• Minus 20% movement tested.