NULLIFIRE FS703 SOLVENT FREE FIRE-RESISTANT SILICONE SEALANT (FORMERLEY M703)
Nullifire FS703 (M703) is a fire resistant seal for high movement joints (up to 50 %). For internal and external use. AS USED ON LONDON UNDERGROUND for many years. Ideal for use on masonry to masonry, steel to steel, masonry to timber and masonry to steel.
• Resistant to mould, fungus and vermin attack
• Suitable for joints up to 50mm in width
• Joints in compartment walls & floors
• Bedding of fire door locks and hinges
• Can achieve up to 5 hours joint fire resistance tested in accordance with BS EN 1366-4