Product Data Sheet Show all documents
EVERBUILD® B2 Gun Grade Fire Foam

EVERBUILD® B2 Gun Grade Fire Foam

Quick-setting gun grade fire-rated foam

EVERBUILD® B2 Gun Grade Fire Foam is a quick-setting one-part polyurethane foam with fire resistance properties. The foam expands on application 1.5 - 2 times its original volume. Once cured, the foam can be cut, sawn or plastered over after only one hour providing the working temperatures (can and surfaces) are between +5 °C to +25 °C, ideally 20 °C.

  • High degree of fire rating: slows down the passage of flames and smoke in comparison to standard B3 grades
  • Quick setting - can be cut, sawn or plastered in 1 hour.
  • Economical in use - expands up to 50 times its original can volume.
  • Fills irregular and broad gaps where most conventional fillers would fail.
  • Possesses insulating and sound deadening properties.
                                                                                                                                                                    Expansion40 litres (750 ml can)Cell StructureMedium Fine
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Product Data Sheet Show all documents

Usage

Filling
  • Gaps around window and door frames
  • 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 EVERBUILD® FIREMATE® intumescent sealant for maximum fire rating.  

Advantages

  • High degree of fire rating: slows down the passage of flames and smoke in comparison to standard B3 grades
  • Quick setting - can be cut, sawn or plastered in 1 hour.
  • Economical in use - expands up to 50 times its original can volume.
  • Fills irregular and broad gaps where most conventional fillers would fail.
  • Possesses insulating and sound deadening properties.
                                                                                                                                                                    Expansion40 litres (750 ml can)Cell StructureMedium Fine

Packaging

750 ml pressurized cannister

Colour

Pink

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Fire rated up to 2 hours in certain joint configurations based on EN1366-4. Copies of the independent test certificate, Warrington fire report available on request.
Product Information

Chemical Base

Polyurethane

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. Do not pierce or burn the can even after use. Store as flammable liquid.

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

Compressive Strength

4 N/cm² (DIN 53421) at 10 % stress.

Tensile Strength

7 N/cm2 (DIN 53430)

Shear Strength

5 N/cm² (DIN 53427)

Service Temperature

Long Term  -40 °C to +80 °C

Application

Application Information

Ambient Air Temperature

5 °C - 30 °C (optimum 20 °C)

Curing Time

App, 12 hours (20 mm bead)

Cutting Time

20 mins to 1 hour depending on bead dimensions.

Tack Free Time

Approx. 8 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.

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