Everbuild Fire B1 Expanding Foam – 750ml aerosol

Everbuild Fire B1 Expanding Foam – 750ml aerosol

EVERBUILD® B1 Handheld Fire Foam is a quick-setting one-part polyurethane foam with fire-retardant properties. The foam expands on application to up to 50 times its original volume and meets the test criteria BS476 Part 20; Class B1. Fire rated up to 4 hours in certain joint configurations. Once cured, the foam can be cut, sawn or plastered over after approximately one hour.

Features:

• High degree of fire rating: slows down the passage of flames and smoke
• Quick setting – can be cut, sawn or plastered in 1 hour
• Economical in use – expands up to 50 times its original aerosol volume
• Fills irregular and broad gaps where most conventional fillers would fail
• Possesses insulating and sound deadening properties
• Expansion – 40 litres (750ml can)
• Cell structure – Medium fine
• Elongation at tension – 25% (DIN 53430)

Usage:

Filling:

• Gaps around pipe entries through fire-rated walls
• To provide a fire-rated seal around window and door frames
• Electrical wire chasing prior to plastering, where a fire rating is required
• Deep joints prior to applying sealant or plaster
• Irregular gaps in stone, brick, concrete or plaster

Fixing:

• Door frames
• Timber structures
• Windowsills and thresholds
• Window frames

Insulating:

• Behind cladding to exterior walls
• Behind soffit and barge boards

When used as part of a fire-rated joint, use in conjunction with EVERFLEX^® FIREMATE^® intumescent sealant for maximum fire rating.