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Fireproof Sponge and Profile Sponge

Product 41


Sheets of fire resistant sponge, ideal for use under roofing sheets

Not available to purchase online.

We need to ask you a few more questions and ensure this is the suitable product for your needs.

To order please call us on +44 (0) 1 304 842 555


Fireproof Sponge and Profile Sponge

This fireproof sponge and profile sponge is incombustible and emits no toxic fumes. The material will not burn if exposed to fire. It slowly degrades in a fire, thus providing an extremely effective fire-stopping barrier.

Used also in conjunction and faced with Product 63 Cement Filler to provide an effective fire-stopping seal.

Supplied and available in standard strips and sheets, other sizes are available made to order.

A very versatile material, the fireproof sponge is useful as:

  • a fire break under roofing sheets
  • between walls and floors
  • as packing around small openings, such as spaces around windows and door frames in timber buildings where it is useful as a penetration seal.

Additionally, this product is available in pieces or metre lengths and supplied cut to match steel cladding profiles where necessary. Take a look at our references tab for the full availability of sizes available.

This product has been fire-resistance test employing the general procedures and criteria of BS476 part 22 (1987) achieving an integrity of 240 minutes. EN1366-3:2009 achieving 88 minutes.

Fire barriers provide an effective solution for gaps or voids within buildings that require fire protection. Browse our full range of fire barrier products.


– Provides up to 138 minutes fire protection- Can be cut to various profiles and used under roofing sheets as a fire break
– Ideal for use between walls and floors, or packed around small openings as a penetration seal
– Can be faced with Cement Filler (Product 63) to provide an even more effective seal

Case Studies

  • Pillow talk prevents unnecessary exposure in Hospital

    Intumescent gap filling products have been used to protect services in Weston General Hospital. Products 1, 5 , 41

  • Protecting a Pharmacy conveyor belt

    Motorised drop curtain helping to protect Royal Glamorgan Hospital.

Order References / Sizes

REF                    Size in mm           Priced per linear metre

F1020                    10 x 20

F1030                    10 x 30

F2020                    20 x 20

F2030                    20 x 30

F3030                    30 x 30

F4030                    40 x 30

F5030                    50 x 30

F5050                    50 x 50

F6030                    60 x 30

F6060                    60 x 60

F7040                    70 x 40

F7030                    70 x 30

F10040                100 x 40


Other sizes made to order


Larger F sponge in sheet form – 1 metre x 1 metre and 1 metre x 2 metre. For ½ hour – 30mm into wall. For 1 hour – 50mm into the wall. For 2 hours – 70mm into the wall. For 4 hours – 100mm into the wall.













Can be supplied in greater thickness.





For profile sections either cut to size, ready to fit for one hour and two hour protection, or in one metre lengths for one or two hour protection to cut on site to the required depth. Just compress and fit into the opening. The sponge can be used under roofing sheets, between walls and floors, or as packing around small openings and can be faced with Envirograf® CF Cement Filler (Product 63). The sponge is also available in sheet form.


REF                        PROTECTION                                      A             B             C             D                                                       


MPF                        1 hour                                                    30mm    70mm    60mm       40mm


MPF/2                    2 hours                                                  30mm    70mm    60mm       40mm


MPFX                     1 hour                                                    30mm    70mm    60mm    1000mm


A             Horizontal width at the top of the profile

B             Horizontal width at the bottom of the profile

C             Vertical height between top and bottom surfaces

D             Depth:

for one hour protection this is 40mm (MPF)

for two hours protection this is also 40mm (MPF/2) but is

supplied with a white coating on one face.


MPFX is for one hour protection only and is supplied in one metre lengths (D = 1000mm).

For special sponge profiles in 1 metre lengths, state the measurements A, B, and C when contacting the sales department.