Intumescent Fire Rated Mastic Sealant – Brown

• Fire rated to EN1366-4 (2006) & EN1366-3 (2009). Acoustic rates to BS EN ISO 140/3
• Tested for air permeability to EN13141-1
• Swells more than 150% of its original size when exposed to heat
• No priming required for most construction substrates
• Permanently flexible
• Excellent acoustic properties
• Easy to apply and tool off
• Fast cure – tack free in 15 minutes
• Suitable to paint over

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