Box of 12 Fischer B3 Expanding Foam Gun Grade 750ml Can 42749

Box of 12 Fischer B3 Expanding Foam Gun Grade 750ml Can 42749

£82.80 £69.00
In stock
  • Buy 10 for £69.60 £58.00 each and save 16%

Fischer B3 General Purpose Expanding Gunfoam Buff 750ml Can 42749 Box of 12

Single-component polyurethane foam

Installation examples

  • Filling window frame gaps and around window sills
  • Insulating pipes
  • Filling in wall penetrations, cavities, around shutter boxes - use for all interior work
  • Fixing and sealing in walls and ceilings


  • Rapid-hardening foam reduces processing time.
  • Using an applicator pistol allows for reduced-fatigue working and economical dosing.
  • Noise-reducing properties.
  • Long shelf life.
  • Resistant to rotting.
  • Resistant to ageing.

Installation information

  • Wet base surface if atmospheric humidity is low.
  • Shake cartridge before use.
  • Hold valve downwards when extruding foam.
  • Foam yield of extruded foam: up to 45 litres.
  • Resistance to temperature of hardened foam: -30° C to +80° C.▪ Non-tacky after approx. 10 minutes, can be cut after approx. 25 minutes, load-bearing after approx. 3 hours, completely hardened after approx 5 - 8 hours (all details based on temperature of +20°
  • The foam is extruded by using a fischer PU pistol and hardens via chemical reaction with atmospheric humidity.


  • Buff
More Information
SKU FIS42749


Standard delivery is 2-5 working days from when the order is placed. Orders under £30 (inc vat) will be charged £4.99 (inc vat).


Please see our delivery page for restrictions and further information.


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