Our FAS Fire Door Foam™ is now available in a handy installation kit, with all the tools you need to confidently install your fire doors.
This handy kit contains:
12 units of Fire Door Foam™
1 FAS PU Foam Cleaner – 500ml
1 FAS Plastic Packer Tub – 400 mixed 100 x 28mm
1 FAS PU Foam Applicator Gun
1 FAS Spray Bottle – 500ml
This PU expanding Fire Door Foam™ has been designed and tested to seal those important gaps between walls and fire door frames, achieving up to 60 minutes of fire protection.
It’s easy to apply, taking around 3 minutes on every door set installed and replaces the need for mineral fibre wool and mastic. It’s also the most certified fire door foam on the market, which has been specifically tested on fire door assemblies.
The pigment has recently been changed to orange to distinguish it from generic pink fire foams that are common on the market and untested to work within fire door assemblies.
Features & Benefits
- The UK's only orange fire-rated foam
- Easy to install in 3 minutes per door set
- No need for mineral fibre wool or mastic
- Compatible with standard plastic and timber packers
- Fire-rated up to 60 mins (120 mins with FAS Fire Door Intumescent Acrylic Sealant)
- Specially tested with fire-rated timber door sets
- Sound reduction capabilities of up to 60 dB RW.
- Comes with protective gloves
- 750ml can = 3-4 doorsets
- Orange pigments may differ between production batches
Areas of Application
- Cavity gap filling and perimeter pointing between walls and timber frames of fire doors and screens
- Timber frames, softwood (FD30), hardwood and MDF
- Use FAS Intumescent Acrylic Sealant mastic capping for FD90-120 fire door sets
Fire Rating
- Extensively fire tested to 30-120 minutes with fire door sets in accordance with BS 476: Pt 20 & 22: 1987 and BS EN 1634-1: 2014.
- Smoke and leakage tested in accordance with BS EN 1634-3:2004
Certifire Certificate
CF5839
Shelf Life
12 months if stored in accordance with storage guidance.
Storage & Disposal
- Cans can be stored for at least 12 months from the production date when stored unopened under cool, dry conditions between 5°C and 30°C. They should not be left in an overheated environment or in direct sunlight. Do not expose the product to temperatures exceeding 50°C.
- Empty cans should be disposed of appropriately in line with local regulations. Refer to the Material Safety Data Sheet for more information.
Maintenance
- Recorded inspection should be conducted in line with the maintenance and inspection schedule that is defined for the building or project. These should be conducted and recorded by competent individuals.
- Where the product is damaged or tampered with, a new product should be installed with the installation guidance.
Product Information
- All website information and technical data reflect the latest versions. For any earlier versions, please contact our sales office.
Installing Fire Doors with FAS Fire Door Foam™
Can I add architraves over Fire Door Foam™?
Architraves are optional, Fire Door Foam™ has been tested with and without.
Can I use Fire Door Foam™ when doorsets are required to have smoke control.
Yes, Fire Door Foam™ has smoke leakage evidence to BS EN 1634-3: 2004.
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.
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.
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.
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).
Does Fire Door Foam™ have an acoustic rating?
Yes, Fire Door Foam™ has sound reduction capabilities of up to 60 dB Rw.
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.
Is Fire Door Foam™ tested with architraves?
Yes, Fire Door Foam™ has been tested for use with and without architraves.
What fire rating does Fire Door Foam™ offer?
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.
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.
Why use Fire Door Foam™ instead of stone mineral fibre wool as backing for FAS Fire Door Intumescent Acrylic Sealant?
Fire Door Foam™ installation saves time and money against traditional mineral fibre wool methods.
Why use Fire Door Foam™? What are the alternatives?
It saves time and money against traditional methods like mineral wool & mastic.
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.
How to Select the Right Sealants for Your Fire Door Installation
Installing fire doors with the appropriate fire-rated materials is crucial to their performance when exposed to fire and smoke.
When selecting products to seal those important gaps between the back of the frame and the wall it’s important to make sure they’ve been tested in fire door assemblies to meet British Standards BS8214:2016.
Here’s what else you need to check:
Fire mastic should be an approved linear gap joint seal, successfully tested in accordance with BS 476-20 or BS EN 1366-4 for the required period of fire resistance.
Expanding foam should be an approved linear gap joint seal, successfully tested in accordance with BS 476-20 or BS EN 1366-4 for a minimum of 30 minutes fire resistance.
Mastic and expanding foam fire sealants can be used provided they have been included within a fire test between the door frame and surrounding structure, on a timber-based door assembly that has demonstrated a minimum of 30 min fire resistance in accordance with BS 476-22 or BS EN 1634-1.
If a product doesn’t display this information, it’s worth asking for test evidence to prove it has been tested to work in fire doors applications.
Our Fire Door FoamTM and Fire-rated Acrylic Sealant have been independently tested to meet these standards and provide fire protection for up to 60 minutes separately, and up to 120 minutes when applied together.
These are some of the basics you’ll need to know when applying these fire-proofing products:
- Apply Fire Door FoamTM for gaps up to 25mm to achieve 60 minutes fire protection.
- Add at least 10mm cap of Fire-rated Acrylic Sealant to achieve 90-120 minutes fire protection.
- Apply Fire-rated Acrylic Sealant for gaps below 5mm to achieve 60 minutes fire protection.
- The Fire Door FoamTM replaces the need for mineral fibre wool and is much quicker to install saving around 12 minutes per doorset installation.
- Both products have been fully tested for use with standard packers.
- Certifire approved cerficates: CF5839 & CF5840
Watch the video to see how to install these products together to achieve up to 120 minutes of fire protection https://bit.ly/FD90-120
For more information or advice get in touch with our team!
0121 521 2179 | [email protected]
Our FAS Fire Door Foam™ is now available in a handy installation kit, with all the tools you need to confidently install your fire doors.
This handy kit contains:
12 units of Fire Door Foam™
1 FAS PU Foam Cleaner – 500ml
1 FAS Plastic Packer Tub – 400 mixed 100 x 28mm
1 FAS PU Foam Applicator Gun
1 FAS Spray Bottle – 500ml
This PU expanding Fire Door Foam™ has been designed and tested to seal those important gaps between walls and fire door frames, achieving up to 60 minutes of fire protection.
It’s easy to apply, taking around 3 minutes on every door set installed and replaces the need for mineral fibre wool and mastic. It’s also the most certified fire door foam on the market, which has been specifically tested on fire door assemblies.
The pigment has recently been changed to orange to distinguish it from generic pink fire foams that are common on the market and untested to work within fire door assemblies.
Features & Benefits
- The UK's only orange fire-rated foam
- Easy to install in 3 minutes per door set
- No need for mineral fibre wool or mastic
- Compatible with standard plastic and timber packers
- Fire-rated up to 60 mins (120 mins with FAS Fire Door Intumescent Acrylic Sealant)
- Specially tested with fire-rated timber door sets
- Sound reduction capabilities of up to 60 dB RW.
- Comes with protective gloves
- 750ml can = 3-4 doorsets
- Orange pigments may differ between production batches
Areas of Application
- Cavity gap filling and perimeter pointing between walls and timber frames of fire doors and screens
- Timber frames, softwood (FD30), hardwood and MDF
- Use FAS Intumescent Acrylic Sealant mastic capping for FD90-120 fire door sets
Fire Rating
- Extensively fire tested to 30-120 minutes with fire door sets in accordance with BS 476: Pt 20 & 22: 1987 and BS EN 1634-1: 2014.
- Smoke and leakage tested in accordance with BS EN 1634-3:2004
Certifire Certificate
CF5839
Shelf Life
12 months if stored in accordance with storage guidance.
Storage & Disposal
- Cans can be stored for at least 12 months from the production date when stored unopened under cool, dry conditions between 5°C and 30°C. They should not be left in an overheated environment or in direct sunlight. Do not expose the product to temperatures exceeding 50°C.
- Empty cans should be disposed of appropriately in line with local regulations. Refer to the Material Safety Data Sheet for more information.
Maintenance
- Recorded inspection should be conducted in line with the maintenance and inspection schedule that is defined for the building or project. These should be conducted and recorded by competent individuals.
- Where the product is damaged or tampered with, a new product should be installed with the installation guidance.
Product Information
- All website information and technical data reflect the latest versions. For any earlier versions, please contact our sales office.
Installing Fire Doors with FAS Fire Door Foam™
Can I add architraves over Fire Door Foam™?
Architraves are optional, Fire Door Foam™ has been tested with and without.
Can I use Fire Door Foam™ when doorsets are required to have smoke control.
Yes, Fire Door Foam™ has smoke leakage evidence to BS EN 1634-3: 2004.
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.
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.
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.
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).
Does Fire Door Foam™ have an acoustic rating?
Yes, Fire Door Foam™ has sound reduction capabilities of up to 60 dB Rw.
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.
Is Fire Door Foam™ tested with architraves?
Yes, Fire Door Foam™ has been tested for use with and without architraves.
What fire rating does Fire Door Foam™ offer?
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.
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.
Why use Fire Door Foam™ instead of stone mineral fibre wool as backing for FAS Fire Door Intumescent Acrylic Sealant?
Fire Door Foam™ installation saves time and money against traditional mineral fibre wool methods.
Why use Fire Door Foam™? What are the alternatives?
It saves time and money against traditional methods like mineral wool & mastic.
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.
How to Select the Right Sealants for Your Fire Door Installation
Installing fire doors with the appropriate fire-rated materials is crucial to their performance when exposed to fire and smoke.
When selecting products to seal those important gaps between the back of the frame and the wall it’s important to make sure they’ve been tested in fire door assemblies to meet British Standards BS8214:2016.
Here’s what else you need to check:
Fire mastic should be an approved linear gap joint seal, successfully tested in accordance with BS 476-20 or BS EN 1366-4 for the required period of fire resistance.
Expanding foam should be an approved linear gap joint seal, successfully tested in accordance with BS 476-20 or BS EN 1366-4 for a minimum of 30 minutes fire resistance.
Mastic and expanding foam fire sealants can be used provided they have been included within a fire test between the door frame and surrounding structure, on a timber-based door assembly that has demonstrated a minimum of 30 min fire resistance in accordance with BS 476-22 or BS EN 1634-1.
If a product doesn’t display this information, it’s worth asking for test evidence to prove it has been tested to work in fire doors applications.
Our Fire Door FoamTM and Fire-rated Acrylic Sealant have been independently tested to meet these standards and provide fire protection for up to 60 minutes separately, and up to 120 minutes when applied together.
These are some of the basics you’ll need to know when applying these fire-proofing products:
- Apply Fire Door FoamTM for gaps up to 25mm to achieve 60 minutes fire protection.
- Add at least 10mm cap of Fire-rated Acrylic Sealant to achieve 90-120 minutes fire protection.
- Apply Fire-rated Acrylic Sealant for gaps below 5mm to achieve 60 minutes fire protection.
- The Fire Door FoamTM replaces the need for mineral fibre wool and is much quicker to install saving around 12 minutes per doorset installation.
- Both products have been fully tested for use with standard packers.
- Certifire approved cerficates: CF5839 & CF5840
Watch the video to see how to install these products together to achieve up to 120 minutes of fire protection https://bit.ly/FD90-120
For more information or advice get in touch with our team!
0121 521 2179 | [email protected]




![[FAS-PACKERTUB] FAS Plastic Packer Tub](https://b3516861.smushcdn.com/3516861/wp-content/uploads/2025/08/FAS-PACKERTUB-FAS-Plastic-Packer-Tub.png?lossy=2&strip=1&webp=1)



