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Fire Retardant Varnish

Fire retardant varnishes for wood and timber, are clear protective coatings which protect and beautify the natural appearance of the surface. Now available in wood stain colours as well, they are ideal for fireproofing any size area of exposed wood beams, boards, MDF, veneer, etc. Click here if you require coloured fire-retardant paints for wood and timber.

Fire retardant varnishes can offer BS Class 1, Class 0, EN Class B and 30 or 60-minute protection depending on the requirement, circumstance and system choice. Most fire-retardant varnishes are part of a system which includes a basecoat and topcoat to complete the protection. These clear or wood stain coloured translucent fireproof varnishes provide a fire protection layer allowing the ornate and decorative elements of wood to be kept as is, without having to use opaque, coloured coatings.

Fire protection doesn’t have to be hard work, let our technical staff help you get the level of protection you require and the finish you want. If there is a product you cannot find, please contact our Technical and Sales Support Team on 0113 245 5450.

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Thermoguard Fire Varnish 30 & 60 Minute System

Thermoguard Fire Varnish 30 and 60 Minute System is a clear intumescent varnish for interior and exterior timber surfaces. Each pack contains the correct amount of basecoat (Fire Varnish Basecoat) and topcoat (Thermoguard Fire Varnish Overcoat (Interior) or Thermoguard Fire Varnish Overcoat (Exterior)) to ensure protection is achieved inline...

Price £140.62 Regular price £156.24
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Thermoguard Fire Varnish BS Class 1/0 & EN Class B System

Thermoguard Fire Varnish BS Class 1/0 & EN Class B s2 d0 System is a clear fire retardant varnish for interior and exterior timber surfaces. See further below for representations of available translucent wood stains - these are shown in the colour picker as solid colours Certificate Application

Price £140.62 Regular price £156.24
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Bollom Intulac Ultra Basecoat

Bollom Intulac Ultra Basecoat is a clear, high-performance fire protection varnish coating for interior wood surfaces. ADVANTAGES Can be applied over existing varnish Simple 3 coat system to achieve Class 0 Single pack products Protects and highlights natural beauty of the wood Diminishes flue-gas density/temperature Insulates against...

Price £164.15
In stock

Bollom Intulac Ultra Topcoat

Bollom Intulac Ultra Topcoat delivers excellent clear fire protection to wood and timber. ADVANTAGES High performing satin or matt finish To be applied over Bollom Intulac Ultra Basecoat to complete a Class 0 fire-rated system Decorative varnish system for interior use Certificates of conformance & installation available Single...

Price £38.20
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Thermoguard Fire Varnish Basecoat

Thermoguard Fire Varnish Basecoat is a clear intumescent varnish that is the first coat of a 2 coat system (3 coats externally) for the decorative Fire Protection of timber and timber derived substrates to BS Class 1, Class 0 and EN Class B s2 d0. See Thermoguard Fire Varnish Overcoat (Interior), Thermoguard Fire Varnish Overcoat (Exterior) or...

Price £102.67
In stock

Thermoguard Fire Varnish Overcoat (Interior)

Thermoguard Fire Retardant Varnish Overcoat (Interior) is for use in combination with and over Thermoguard Fire Varnish Basecoat in internal applications. ADVANTAGES For timber/timber derived substrates Clear, UV and wear-resistant finish Certificate of Supply available when used over Thermoguard Fire Varnish Basecoat Choice of Clear or...

Price £53.57
In stock

Thermoguard Fire Varnish Overcoat (Exterior)

Thermoguard Fire Varnish Overcoat (Exterior) is a decorative lacquer for use over Thermoguard Fire Varnish Basecoat for EXTERIOR surfaces. Restricted to professional users. Not for sale to, or use by the general public. Each 20m2 pack of Thermoguard Fire Varnish Exterior Overcoat is sufficient to apply the required 2 coats to 20m2 of...

Price £102.67
In stock

Thermoguard Fire Varnish Door Upgrade System

Thermoguard Fire Varnish Door Upgrade System is an intumescent varnish system to upgrade solid doors to 20 or 30min Fire Resistance: Available as a convenient pack containing the required basecoat, topcoat and mastic to protect 3 doors in a clear or woodstain coloured Matt or Satin finish Thermoguard UK will issue a Fire Certificate for...

Price £238.38 Regular price £264.86
In stock

Thermoguard Professional Lacquer Topcoat

Thermoguard Professional Lacquer Topcoat, a hard, wear resistant Fire Protection AC lacquer for application by professionals using brush, roller or spray. To be used over Thermoguard Fire Varnish Basecoat for INTERIOR surfaces. Restricted to professional users. Not for sale to, or use by, the general public. Each 40m² pack of Thermoguard...

Price £102.67
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Popular areas that require the fire protection provided by retardant varnishes, include interior and exterior cladding, ceilings, beams, hoarding, panelling and more. When exposed to fire, Thermoguard Fire Varnish expands to create an insulating barrier, protecting timber surfaces from flames, heat and oxygen and suppressing emission of deadly smoke & gasses.

If you are unsure about which fire-resistant varnish to use, please contact us immediately for advice.

Interior and Exterior Fireproofing Varnishes

Whether indoor or outdoor, considering fire protection measures are equally important. So, whilst using a product internally may stop the spread of flames to escape routes, if flames are exposed to external wooden panelling, they can pass and move around a building very quickly and destabilise or block fire escapes.

Treating external wooden panelling or cladding, can mean that a fire which spreads to, or starts at one property, offers additional smoke suppression and flame spread protection to other areas of the property and others nearby. As an additional note, general maintenance around external fire protective coating usage is a priority. Rawlins Paints sell a range of safety and security products, and it needs to be kept in mind that sources of arson or accidental fire can come from bins, storage facilities connected to a property, unkept foliage, and highly flammable materials left exposed to the sun or a heat source.

Varnishing Over Previously Varnished Wood

Many of the fire-retardant varnishes available to buy today at Rawlins Paints, like Bollom Intulac Ultra, offer excellent adhesion to previously varnished surfaces – if they are sound, in good condition and receive adequate preparation. Please contact our technical support team if you are in doubt about a product’s coverage capacity to previously treated wood and timber surfaces.

Each product listed in this category comes with a datasheet, which will offer advice on surface preparation, application, drying times etc. and should be read and understood before use.

Where to Use Fire Retardant and Intumescent Varnish

Intumescent varnish basecoats and fire-retardant varnish topcoats are often used for:

  • Converting solid wood doors (softwood and hardwood) into 30/60 min fire resistance doors
  • Wood panelling in heritage or listed buildings

Including upgrades and property conversions

  • Previously varnished or stained wood

Differing levels of surface preparation will be required to make the surface suitable for and to reach the full fire protective capabilities of a product

  • Exposed timber beams and structural framework in loft conversions, attic spaces, hotels, private properties – flats, houses, bungalows – windmills, school out-buildings, etc. 
  • Shopping centre kiosks, garden centre display structures and retail stands, night-club décor, theatre stages (including props), bars and food/drink service points, pop-up stalls on food fairs, fairgrounds, markets, etc.

Fire Certification Obtained from Using Fire Resistant Varnish

It is important when purchasing fire retardant varnishes to ensure that you are choosing the correct product which meets the requirements of your authority. Most manufacturers will issue a Certificate of Supply upon request for each correctly specified project for Insurance, Fire and Building Control Authority and Client Records against proof of purchase.