Fire Door Varnish (30min)

Envirograf Door Upgrade Varnish System


Envirograf Door Upgrade Varnish System offers a clear varnish solution to upgrade solid wood/timber doors to up to 30 minutes' fire resistance: 

  • Meets manufacturer recommendations
  • Primer, intumescent & topcoat included
  • Certificate of Supply available
  • Helps comply with Building Regulation requirements
  • Keeps the period look & feel of ornate doors
  • White paint door upgrade kit also available
Bulk Buy

£92.39 tax excl.


£102.66 tax excl.

£110.87   tax incl.

Product Description

This Envirograf system offers a clear varnish solution to upgrade solid wood/timber doors to up to 30 minute fire resistance (subject to suitability) by using Envirograf intumescent coatings. These packs have been created to help users ensure they are purchasing sufficient materials for their project. Each pack contains the correct amount of Primer (Envirograf HWAP/WB Primer), Intumescent (Envirograf HW02E Clear Intumescent Coating) and Topcoat (Envirograf HW Excel Clear Top Coat) to ensure protection is achieved inline with the manufacturers recommendations to the respective area in question.

These packs offer the clear varnish system ONLY, if you require intumescent card, mastic, hardware, etc. for your doors please contact the Technical Department. This system offers a clear primer, clear intumescent and clear topcoat sufficient for 4m², 10m² or 20m² of door surfaces. Fire and smoke seals should also be fitted to each door upgraded. Remember, intumescent varnish is just one element of protection and DOES NOT create a ‘fire door’. Intumescent materials and hardware MUST be used to ensure your doors meet the required standards of your authority. 

If you are looking for a white or coloured finish, we also stock Fire Door Paint.

For doors requiring 60 minute fire resistance please contact the Technical Department on 0113 2455450 or [email protected]

Please download and read 'Door Upgrading Technical Data' before purchase, download from the 'Download' section below or from HERE.

Features & Benefits

  • Certificate of Supply available
  • Helps comply with Building Regulation requirements
  • Keeps the period look and feel of doors
  • Clear or coloured versions available
  • Can be used on various different door types
  • Test data available upon request
  • NOT suitable for 'Hollow Core' doors or MDF

Pack Contents

  • 4m² Pack = 1L Envirograf HWAP/WB Primer + 1L Envirograf Envirograf HW02E Clear Intumescent Coating + 1L Envirograf HW Excel Clear Top Coat
  • 10m² Pack = 1L Envirograf HWAP/WB Primer + 2.5L Envirograf Envirograf HW02E Clear Intumescent Coating + 1L Envirograf HW Excel Clear Top Coat
  • 20m² Pack = 2L Envirograf HWAP/WB Primer + 5L Envirograf Envirograf HW02E Clear Intumescent Coating + 2L Envirograf HW Excel Clear Top Coat

In good drying conditions (20°C/50% r.h.) we expect the following overcoat times;

  • Envirograf HWAP/WB Primer - After 1 hour
  • Envirograf HW02E Clear Intumescent Coating - After 2 hours

Please Note:

  • These products should not be used without reading and fully understanding the Door Upgrading Technical Data referenced above as incorrect application/specification may result in doors not being properly protected.
  • We also recommend referring this information (including test data, product data sheets, etc.) to your authority for approval prior to purchase and application.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and ConditionsWe will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

ApplicationBrush, Roller
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


questions gideon on 02/04/2018

Can you apply the paint/varnish system a to a prepainted solid wood door or do you need to remove the old paint?


We would normally advise the Envirograf Door Upgrade Paint System is OK to be used over sound, well adhered, cleaned and abraded normal existing paints and Envirograf Door Upgrade Varnish System is OK to be used over sound, well adhered, cleaned and abraded normal existing stains/varnishes.

questions sharon donaldson on 17/01/2017
Question: can you tell me if the fire resistant paint will be ok as 3 of our doors have a glass panel in? thankyou. mrs s donaldson

Timber elements of glazed doors can be protected with our Fire Door Varnish (30min) as long as the doors meet our minimum requirements - see full details in our 'Fire Door Systems Brochure' available to download from the 'DATASHEETS' tab on the product page.

All glass will have to be replaced with fire rated glass to the relevant standards.

questions shaun robson on 08/01/2017
Question: Reading your guide brochure it states the door must be 9mm thick in the panels. If I find my door is thinner than this is there anything that can be done or will the doors not be suitable?


The only solution in this situation to enable you to use our product would be to remove and replace the undersized panels to ones of adequate thickness.

questions Asha on 31/10/2016
Question: How long does each coat of varnish take to dry?

In good drying conditions (20°C/50% r.h.) we expect the following overcoat times;

1020 Primer - After 45mins
1021 Clear Intumescent Coating - After 1 hour
1022 Clear Topcoat - 24 hours (before bringing doors back into use)

questions John McQueen on 02/09/2016
Question: Hi, we have had a loft room fitted in our house and are trying to have the project signed off. The last stumbling block is the installation of fire doors throughout the property - 7 doors in all.
Your intumescent varnish would save us money and time but can I ask if it can be used on prevarnish doors or do the doors need to be stripped back to bare wood?
Do we need to employ an approved installer to complete the work or can a competent painter complete the works?
Many thanks


Our Fire Door Varnish (30min) does not require an approved contractor and can be applied by any competent applicator. The system can be applied over existing ordinary varnishes and stains, removal is not necessary just normal painting preparation (cleaning and sanding).

questions B Imbery on 17/08/2016
Question: Do the test results require an intumescent strips to make this a 30 minute fire door

Many thanks

Our Fire Door Varnish (30min) and Fire Door Paint (30min) have both been tested with intumescent strips and we do always recommend the use of them when upgrading doors. The issuing of our certification upon completion of the works is not however dependant upon the use of intumescent strips and if the appropriate authority on the project deems them not necessary, our certificate can still be issued.

questions Kat on 16/03/2016

Does this work on exterior doors?


Yes, it can be used on exterior doors but an additional coat of topcoat is required (not included in the pack). Please call our Technical Team on 0113 2455450 to discuss costs and quantities required should you wish to proceed.

questions R. McAdam on 09/01/2016

Is the Fire Door Varnish (30min) suitable for application over oiled doors that are lightly sanded to provide a key?


Fire Door Varnish (30min) can be applied to previously oiled or waxed doors but only when the oil or wax has been completely removed. Light sanding will not be sufficient to ensure complete removal. We recommend using a proprietary cleaner like Timberex Oil & Wax Remover together with thorough sanding. Once complete, apply the Fire Door Varnish (30min) to a small test area to check adhesion is satisfactory before full application is undertaken.


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