Upgrading Existing Doors to Fire Doors
Clear Varnish Finish
FlameProof Fire Door Kit (Varnish) is a clear Intumescent Fire Retardant Varnish System that will upgrade 5 existing well constructed, solid (or sturdy) wooden interior door sides to 30 minute fire protection. No special application skills are required to use our product and each kit comes with a Fire Certificate of Supply to certify the level of protection.
Our system consists of a clear water based 2 pack base coat and a clear single pack solvent based topcoat, that is available in a matt, satin or gloss finish. FlameProof Fire Door Kit (Varnish) is primarily designed to be applied to bare timber but can in certain instances be applied over good quality wood dyes or stains that are compatible with water based coatings – please contact us to check compatibility before proceeding. Our Fire Door Kit must not be applied over existing varnishes or coatings; these will need to be thoroughly removed back to bare timber before application.
Each Kit Includes:
• FlameProof Clear Intumescent Basecoat (with activator)
• FlameProof Clear Topcoat in either Matt, Satin or Gloss
• 1.5” Professional Paint Brush
• Pair of Disposable Gloves
• Mixing Stick
• Application Notes
• Product Data Sheets
• Certificate Application Form
Do you need an intumescent fire and smoke door seal to complete your fire retardant system?
Click here for 30 and 60 minute intumescent fire and smoke fire door seal kits!
Please refer the below information to the appropriate authority for approval before purchase.
Due to the hugely varying nature of doors and their construction, it is impractical and misleading to carry out NAMAS / UKAS Fire Test Laboratory fire door testing.
Each door must be assessed for potential suitability. The great majority of doors, including ALL hollow doors, are unsuitable for upgrading to 30 or even 20 minutes Fire Resistance.
There are, however, certain well constructed, solid and substantial doors capable of being upgraded with our Flame Proof Varnish Intumescent coating, as this is by far the most effective Clear Fire treatment or Coating available. Generally, suitable doors are hardwood or solid with hardwood veneer.
Our Flame Proof Intumescent Paint is capable of significantly greater fire resistance. If you have softwood doors, we suggest you refer to our Fire Door Kit (Paint)
Our Flame Proof Varnish Class 0 Part 6 Fire Propagation Test indicates the protected softwood did not burn within the 10 minute test duration. Further in-house testing indicated that when applied at twice the Class 0 spec; our Flame Proof Varnish added 15 minutes Fire Resistance.
SUITABLE AND UN-SUITABLE DOORS
We assess projects requiring 30 minutes Fire Resistance on an individual basis, referring to the above, TRADA Char Rate Tables and calculated residual timber to ascertain whether we could issue a Fire Certificate for the project.
In order to enable us to issue a 30 minute Fire Certificate, in the case of softwood, the surface must be able to afford the loss of 10mm depth from all surfaces exposed to a fire. In the case of oak or similar woods, the loss to take into account is 6 mm.
In other words, the residual timber should be adequate, after such loss in the case of a door to avoid premature collapse, splitting or cracking, ensuring neither, flames or the substantial heat required to promote combustion, can pass through the door. In general terms, few modern softwood doors can be protected with confidence.
Pine & Other Softwood
Old, and hence very well seasoned, softwood doors can be protected, but only if the frame can withstand 10mm loss. In these cases, panels less than 16mm thick should be supplemented by inserting an additional panel to take the total panel thickness to 16mm, trapping the additional panel behind the door's beading.
Substantial, solid doors unable to afford the loss of 10mm to the frame can achieve 20 minute protection with the 30 minute spec. as below.
Oak & Other Resistant Hardwood
Including modern oak–faced doors with solid compressed core. These doors, with frames 35mm + thick, can be upgraded to 30 minutes if they can afford to lose 6mm to charring.
Any inset panel less than 12mm thick should be supplemented by an additional panel, trapped by the door's beading, to take overall panel thickness to 12mm+.
WHICH SIDE TO PROTECT?
In our opinion, generally the room side of doors should be coated, to protect the corridor and stairwell from potential fire in a room. However in some instances it is felt the doors should have some protection on the corridor side, in order to avoid the doors themselves creating a fire hazard. Please note that this is ultimately up to your local authority managing the project so please confirm with them what they would like you to do. If a door divides a corridor, or divides a corridor from a stairwell, it should be treated to the full 30 minute spec. on both sides.
APPLICATION
2 coats FlameProof Fire Retardant Varnish Basecoat @ 6.5m2 per litre / per coat
2 coats FlameProof Fire Retardant Varnish Overcoat @ 12m2 per litre / per coat
COVERAGE - (coverage is based on using the FULL pack)
30/20 minutes (as above) -allows for number of coats necessary
1 x FlameProof Fire Door Kit (Varnish) will protect 5 door sides + frame
FINISH
FlameProof Fire Door Kit (Varnish) packs are available in Clear Matt, Satin or Gloss Finishes.
Please note: Our coverage guide is based on a standard average door side plus frame/architrave totalling no more than 2m2. If your door sizes exceed these measurements, please contact us and we will advise a new coverage rate to suit your doors.
PLEASE DOWNLOAD AND READ all product data sheets and application notes thoroughly before using this kit.
Click HERE to download this document in PDF format. Disclaimer
Please download and carefully read product datasheets before application
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