Fire Rated Expanding Foam 750ml – B1, Gun Grade – Soudal

Fire Rated Expanding Foam 750ml – B1, Gun Grade

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Gun-grade B1 fire-rated PU foam for controlled, high-yield filling where fire performance matters. Classed B1 to DIN 4102-1 and fast to trim.

Brand: Soudal

Key Benefits

  • Building material class B1 to DIN 4102-1
  • Precise application with a foam gun
  • Around 28 m of joint per 750 ml can
  • Sound insulation of 58 dB

Where to Use It

  • Filling and insulating fixed window and door frames
  • Cavities and voids
  • Around pipes and electrical wiring
  • Improving insulation in cooling systems

Technical Specification

Volume 750 ml aerosol (gun grade)
Colour Blue
Fire classification B1 (DIN 4102-1)
Skin formation (EN 17333-3) 8 minutes
Cutting time (EN 17333-3) 30 minutes
Joint yield (EN 17333-1) approx. 28 m per 750 ml
Box yield (EN 17333-1) approx. 40 litres per 750 ml
Thermal conductivity 0.037 W/m·K
Sound insulation (EN ISO 717-1) 58 dB
Temperature resistance (cured) -40°C to +90°C
Shelf life 12 months unopened, stored upright +5°C to +25°C

Specifications from the Soudal technical data sheet. Typical values – curing and skinning times vary with temperature, humidity and substrate.

Frequently Asked Questions

What does B1 mean?

B1 is the 'flame retardant' building material class under DIN 4102-1.

Do I need a foam gun?

Yes, this is a gun-grade can for use with a foam applicator gun.

When can I trim it?

After about 30 minutes.

Is it UV resistant?

No – protect cured foam with paint, plaster or sealant.

Complete the job: Expanding Foam · Expanding Foam Gun
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