Box of 12 Fischer Firestop Expanding Foam Gun Grade 750ml Can 43712

SKU: FIS43712
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Product Description

  • Hardly flammable, one-component polyurethane foam.
  • The foam hardens as a reaction to atmospheric humidity.
  • Hardly flammable B1 as per DIN 4102 Part 1.
  • Warrington Fire Research tested to BS476 Part 20
  • Up to 4 hours fire rating


  • Hardly flammable 
  • High foam yield
  • Rapid-hardening foam reduces processing time.
  • Suitable for filling cavities between solid building components made of metal or of mineral building materials.
  • CFC Free
  • Can be rendered, cut, painted and sanded
  • Weather resistant

Installation examples

  • High-efficiency thermal insulation on facades
  • Sealing window frame gaps and around window sills
  • Filling of cavities in walls and ceilings

Installation information

  • General test certificate from building authorities: P-NDS 04-620.
  • Pink coloured to differentiate from standard foam.
  • Wet base surface if atmospheric humidity is low.
  • Shake cartridge before use.
  • 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° C).

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SKU FIS43712
Manufacturer Fischer
GTIN 5012184437126
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.