Fischer B3 Expanding Foam Gun Grade 750ml Can Art:42749 (Box of 12)

SKU: FIS42749
  • Buy 10 for £69.60 Incl. VAT £58.00 Excl. VAT each save 16%
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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

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SKU FIS42749
Manufacturer Fischer
GTIN 50121846000087
Box Quantity 12

STANDARD DELIVERY FREE ON UK ORDERS OVER £30 (inc VAT) (*restrictions apply)

Standard delivery is 2-3 working days from when the order is placed. Orders under £30 (inc VAT) will be charged £4.99 (inc VAT).


Please note we currently do not offer a next day delivery option - if you require goods next day please CONTACT US


Please see our delivery page for restrictions and further information.

Orders are despatched Monday - Friday (except Bank Holidays).  


ORDER CUT OFF  - All orders received after 330pm will be processed on the next working day.