Soudal B1 Fire Gun Grade Expanding Foam

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Content: 750 Millilitre

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  • SOU-2112-1001
  • 132730
  • Packet
  • Hardware > Building Consumables > Hardware Glue & Adhesives
Soudal B1 Fire & Acoustic Expanding Foam (750ml) Fire resistance up to 4 hours! Fire... more
Product information "Soudal B1 Fire Gun Grade Expanding Foam"

Soudal B1 Fire & Acoustic Expanding Foam


Fire resistance up to 4 hours!

Fire rated one component, polyurethane gun grade expanding foam filler. Quick and easy flame-retardant filling and insulating of joints, cracks, gaps and cavities in all kinds of construction materials.

Rapid curing with excellent thermal and acoustic insulation properties, Soudal B1 Fire provides excellent primerless adhesion to most construction materials.

Features & Benefits

  • Fire retardant window and door frames
  • Resist heat, cold, moisture and noise
  • Fills and insulates gaps and cavities
  • Can be used indoors and outdoors
  • Excellent bonding properties


  • Passive fire protection systems as a large gap filler
  • Installation of fire retardant window and door frames
  • Sealing of expansion and connection joints
  • Thermal and acoustic insulation around doors and window frames
  • Pipe penetrations and insulation
  • Roofing materials and general construction

Technical Information

Volume 750ml (Gun Grade)
Colour Blue
Basis Polyurethane
Consistency Stable foam, thixotropic
Curing system Moisture curing
Skin Formation (FEICA TM 1014) 8.5 min
Cutting Time (FEICA TM 1005) 65 min
Free foamed density (FEICA TM 1019) Ca. 40Kg/m³
Sound insulation (EN ISO 717-1) 58 dB
Shrinkage after curing (FEICA TM 1004) < 5%
Expansion after curing (FEICA TM 1004) None
Expansion during curing (FEICA TM 1010) Ca. 135%
Percentage closed cells (ISO4590) Ca. 70%
Fire Rating (DIN4102) B1
Water absorption (EN1609) Ca. 0.20Kg/m2
Compressive strength (FEICA TM 1011) Ca. 37kPa
Shear strength (FEICA TM 1012) Ca. 43kPa
Tensile Strength (FEICA TM 1018) Ca. 78kPa
Elongation at Fmax (FEICA TM 1018) Ca. 22.7%
Temperature resistance -40°C to +90°C (cured)
Adhesion Compatibility Good adhesion on all surfaces, except PE, PP and PTFE
UV Resistant No
Shelf Life 24 months unopened and stored in dry and cool conditions (5° to 25°C). Upright storage is recommended.

Using Soudal B1 Fire & Acoustic Expanding Foam

Shake the aerosol can for at least 20 seconds. Open the cover and fold the tube horizontally. Surface should be free from grease and dust. Moisten surfaces with a water sprayer prior to application. For non-conventional substrates a preliminary adhesion test is recommended. Fill holes and cavities for 1/3, as the foam will expand. Repeat shaking regularly during application. If you have to work in layers repeat moistening after each layer. Fresh foam can be removed using Soudal Gun & Foam Cleaner or acetone. Cured foam can only be removed mechanically or with Soudal PU-Remover.

Can temperature: +5°C to 30°C
Ambient temperature: +5°C to 30°C
Surface temperature: +5°C to 35°C

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