Norseal® FS1000 Intumescent Fire Sealing Foam

Norseal® FS1000 Series is a high-performance intumescent sealing foam designed for construction joints and interfaces where fire compartmentation, airtightness and watertightness are required. In its normal state, the foam is soft, conformable and resilient, allowing it to accommodate uneven surfaces and movement within the joint.
When exposed to temperatures above 200°C, FS1000 expands to form a fire-resistant char that helps restrict the passage of fire, smoke and hot gases. When correctly compressed, it also provides effective air and water sealing together with thermal insulation and vibration damping.
Fire performance is dependent on the complete joint and construction configuration. FS1000 has been tested as part of fire-resistant configurations to EN 1366-4 / EN 13501-2; the resulting fire-resistance classification therefore relates to the tested system/configuration rather than the sealing foam in isolation.