Fire Door Foam™ has been fire tested to 60 minutes (BS476 Pt20/22: 1987 & BS EN1634-1) in timber
and composite doorsets and timber glazed screens. It has also been tested to achieve up to 120 minutes when installed with FAS Fire Door Intumescent Acrylic Sealant or FAS Fire Door Silicone. Please refer to the installation guidance found on the Foam product page.
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FAQs
FAS Fire Door Foam™
What fire rating does Fire Door Foam™ offer?
Can you use Fire Door Foam™ on one side and Acrylic Sealant on the other?
No, Fire Door Foam™ must be applied to both sides and completely fill the void. For gaps up to 5mm, Fire Door Intumescent Acrylic Sealant can be used without backing.
What is the minimum and maximum gaps Fire Door Foam™ can be used?
The minimum practical width is 5mm and maximum tested gap is 33mm. Please refer to the installation guide for specific fire-door guidance.
Do the packers have to be covered with Fire Door Foam™?
No, providing that the packers are installed or cut back to be flush with the frame edge, they do not have to be concealed with Foam.
Do you have to install Fire Door Foam™ with specialist packers or fixings?
No, Fire Door Foam™ has been specifically tested with plastic packers and standard screw fixings.
Timber and MDF packers may also be used where required.
Is Fire Door Foam™ NHBC approved?
Yes, Fire Door Foam™ is approved by the NHBC. It is also a mandated product for the installation of fire doors by multiple national building developers.
Do I need to cap off Fire Door Foam™ with intumescent mastic?
No, there is no need to cap with mastic for fire ratings of up to 60 minutes. Our Fire Door Foam™ is also tested for smoke.
Can timber packers be used?
Yes, Fire Door Foam is tested with both plastic and timber packers, providing that they are equal to or of a higher density than the door frame.
Can I add architraves over Fire Door Foam™?
Architraves are optional, Fire Door Foam™ has been tested with and without.
Does Fire Door Foam™ have a shelf life?
Fire Door Foam™ has a 12-month shelf life whilst stored in temperate conditions (5°C > 30°C).
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