Product Data Sheet Show all documents
EVERBUILD® B1 Handheld Fire Foam

EVERBUILD® B1 Handheld Fire Foam

A quick-setting, fire-rated, handheld foam

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.

  • 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)
Product Data Sheet Show all documents

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.  

Advantages

  • 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)

Packaging

750ml aerosol

Colour

Pink

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Meets the requirements of DIN 4102 Part 1 for Construction Materials;  BS476 Part 20 Class B1. Copies of the independent test certificates are available on request. Warrington fire report number 160899 and 151680 (for use with stud partition walls and cables).
Product Information

Shelf Life

12 months in original containers at stated storage temperatures.

Storage Conditions

Store upright between 20°C and 25°C. Pressurized container. Protect from sunlight and do not expose to temperatures above 50°C. Store as flammable liquid.

Note: Elevated temperatures will reduce shelf life dramatically.
Technical Information

Compressive Strength

4N/cm2 (DIN 53421) at 10% stress.

Tensile Strength

8N/cm2 (DIN 53430)

Shear Strength

5N/cm2 (DIN 53427)

Water Absorption

0.3 Vol % (DIN 53433)

Thermal Conductivity

0.04 W/mK (DIN 52612)

Service Temperature

Cured: -40°C to +80°C

Application

Application Information

Ambient Air Temperature

5°C to 30°C (optimum 20°C)

Cutting Time

13-14 mins 20mm bead

Tack Free Time

7-9 minutes
Application steps

SUBSTRATE PREPARATION

Ensure all surfaces are clean, sound and free from dust and loose particles. Moisten surfaces to be sealed with water. This assists the curing process.

CLEANING OF TOOLS

Cured foam must be removed mechanically. Always remove nozzle from can/gun and clean immediately after use with EVERBUILD® DUAL PURPOSE FOAM CLEANER.

 

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