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Thermoguard Products

Thermoguard is one of the UK’s leading manufacturers of intumescent paint, fire retardant paint, and fire-resistant coatings for structural steel, timber, and internal surfaces. Their systems also include door upgrade kits for improving the fire resistance of existing solid wood doors. Trusted for regulatory compliance and durability, Thermoguard products are available now at Rawlins Paints.

If you require more help to find and specify fire protection for your project or contract, our technical team are always on hand to advise. Give us a call on 0113 2455450 (option 2) or send a message to [email protected].

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Thermoguard Flame Retardant Topcoat for Interior Walls

Thermoguard Flame Retardant Topcoat

An oil based, decorative flame-retardant paint with 4,000+ colours used to decorate and complete Thermoguard fire protection upgrading systems. BS476 Part 7; Class 1 surface spread to flame. BS476 Part 6; Fire propagation. Designated Class 0 in accordance with U.K. Building Regulations. Metallic colours (steel, gunmetal) available in...

Price £76.10 (incl. VAT)
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Thermoguard Thermocoat WI Ultimate

Thermoguard Thermocoat WI Ultimate

Interior use, water-based intumescent paint system, providing up to 90 mins fire resistance to structural steel and cast iron with a minimum number of coats.  Optimised for Universal Beams, Columns and other open section steel: See Thermoguard Thermocoat WO Ultimate for steel hollow sections: For protection to exterior environment...

Price £85.20 (incl. VAT)
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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 System

A clear fire retardant varnish for interior and exterior timber surfaces. Important! For use on timber with a minimum thickness of 9mm. Woodstains are only available on the following shipping options: Express: 1-3 Working Days Delivery (Thermoguard DS) Economy: 7-10 Working Days Nationwide Delivery See further below for...

Price £234.16 (incl. VAT)
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Thermoguard Timbercoat | 4000+ Colours Available from RAL, BS & NCS

Thermoguard Timbercoat

An intumescent basecoat used as part 1 of a system to achieve 30 or 60 minute fire resistance for compartmentation. Can achieve 30 or 60 minutes Fire Resistance in certain instances subject to a specification from the Technical Department. For BS Class 1/0 and EN Class B only see Thermoguard Timbercoat Insulating Basecoat. Interior and...

Price £144.40 (incl. VAT)
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Thermoguard Fire Varnish Basecoat

Thermoguard Fire Varnish Basecoat

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) or Thermoguard Fire Varnish Overcoat (Exterior) to complete the system. Complete...

Price £156.11 (incl. VAT)
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Thermoguard Smoke & Flame Retardant (SFR) Dualcoat | 4,000+ colours available from RAL, BS & NCS

Thermoguard Smoke & Flame Retardant Dualcoat

4,000+ matt and eggshell colours for use over Thermoguard Timbercoat or Thermoguard Timbercoat Insulating Basecoat. Topcoat and maintenance paint for timber surfaces protected with Thermoguard Timbercoat. Emits a safe fire-damping vapour in a fire to control flame spread and suppress smoke. As part of a complete system achieves 30 or 60...

Price £80.18 (incl. VAT)
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Thermoguard Steel Fire Paint Primer

Thermoguard Steel Fire Paint Primer

A quick drying, high build, solvent-based primer for structural steel offering exceptional corrosion resistance, maximum grip to steel and existing primers, helping to ensure good intumescent paint adhesion. Ideal for priming bare steel surfaces before the application of Thermocoat WI, Thermocoat WO and Thermocoat S intumescent paints. Also...

Price £68.29 (incl. VAT)
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Thermoguard Thermocoat WO Ultimate

Thermoguard Thermocoat WO Ultimate

Water-based intumescent paint system providing fire resistance to structural steel and cast iron with a minimum number of coats. A compatible decorative overcoat system ensures the system will enhance the building’s architectural and design features. Optimised for CHS, SHS and RHS hollow sections See Thermoguard Thermocoat WI Ultimate...

Price £85.20 (incl. VAT)
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Thermoguard Asbestos Encapsulating Coating | 4000+ colours RAL, BS & NCS

Thermoguard Asbestos Encapsulating Coating

Thermoguard Asbestos Encapsulating Smoke & Flame Retardant Coat seals rigid, sound asbestos in locations within buildings which are not subject to mechanical damage, concealed or are difficult to access. Seals isolated asbestos fibres Prevents asbestos release Permanently bonds asbestos fibres Available in 12m² or 50m² pack sizes...

Price £80.00 (incl. VAT)
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Thermoguard Thermocoat S

Thermoguard Thermocoat S

Intumescent, solvent based paint for structural steel and cast iron. Provides up to 90 minutes fire resistance, maintaining the structural integrity of buildings. For protection to exterior environment steels For interior Universal Beams, Columns and other open section steel see Thermoguard Thermocoat WI Ultimate For interior steel...

Price £89.26 (incl. VAT)
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Thermoguard Timbercoat BS Class 1/0 & EN Class B System | 4,000+ Colours Available

Thermoguard Timbercoat BS Class 1/0 & EN Class B System

4,000+ coloured fire retardant paint system for interior and exterior timber surfaces.  Each pack contains the correct amount of basecoat (Thermoguard Timbercoat Insulating Basecoat) and topcoat (Smoke & Flame Retardant Dualcoat) to ensure protection is achieved in line with the manufacturers recommendations to the area in question....

Price £228.48 (incl. VAT)
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Thermoguard Fire Varnish 30 & 60 Minute System

Thermoguard Fire Varnish 30 & 60 Minute System

A clear intumescent varnish (with 9 woodstain shades available) 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 with the...

Price £234.16 (incl. VAT)
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Thermoguard Timbercoat 60 Minute System | Fire Protection In 4000+ Colours Available from RAL, BS & NCS

Thermoguard Timbercoat 60 Minute System

An intumescent paint system in 4,000+ colours for interior and exterior timber surfaces. Each pack contains the correct amount of basecoat (Timbercoat) and topcoat (Thermoguard Smoke & Flame Retardant (SFR) Dualcoat) to ensure protection is achieved inline with the manufacturers recommendations to the respective area in question....

Price £224.58 (incl. VAT)
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Thermoguard Timbercoat Door Upgrade System | 4000+ Colours Available

Thermoguard Timbercoat Door Upgrade System

An intumescent paint system to upgrade solid doors to 30min Fire Resistance, with 4,000+ colour options. Available as a convenient pack containing the required basecoat and topcoat to protect 2 doors in a white or coloured Eggshell or Gloss finish Thermoguard UK will issue a Fire Certificate for Authority approved projects following...

Price £220.50 (incl. VAT)
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Thermoguard Fire Varnish Overcoat | For Interior Use

Thermoguard Fire Varnish Overcoat (Interior)

For use in combination with and over Thermoguard Fire Varnish Basecoat in internal applications - available in clear and a choice of woodstain colours. For timber/timber derived substrates Clear, UV and wear-resistant finish Certificate of Supply available when used over Thermoguard Fire Varnish Basecoat Important! Woodstains are...

Price £78.05 (incl. VAT)
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Thermoguard Intumescent Mastic

Thermoguard Intumescent Mastic

A one-part intumescent acrylic mastic for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated structures. Forms a char, preventing the passage of fire and smoke, when exposed to the heat of a fire. Tested around: metallic pipes, cable trays, cable bunches, small, medium & large...

Price £7.22 (incl. VAT)
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Thermoguard Wallcoat | Fire Protection In 4000+ Colours

Thermoguard Wallcoat

Intumescent basecoat in 4,000 colours for overcoating with Thermoguard Wallcoat Smoke and Flame Retardant Topcoat to upgrade potentially dangerous 'multi-layer' - previously painted - walls and ceilings in communal areas to 30 or 60 minutes protection. Achieves EU and new British safety standards on walls and ceilings For painted plaster,...

Price £144.40 (incl. VAT)
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Thermoguard Wallcoat 30 & 60 Minute System for Plasterboard | 4000+ colours

Thermoguard Wallcoat 30 & 60 Minute System for Plasterboard

Intumescent paint system with 4,000+ colour options for interior plasterboard and cement board ceiling and wall surfaces. These packs have been created to help users ensure they are purchasing sufficient product for their project. Each pack contains the correct amount of basecoat (Wallcoat) and topcoat (Thermoguard Wallguard Smoke & Flame...

Price £214.64 (incl. VAT)
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Thermoguard Thermostrip PRO

Thermoguard Thermostrip PRO

Thermoguard Thermostrip PRO is a water-based, low odour gel for removing all types of water and oil-based coatings including adhesives like carpet glue. For professional and DIY use, there is no safer, more effective stripper on the UK market!

Price £27.05 (incl. VAT)
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Thermoguard Timbercoat 30 Minute System in 4000+ Colours Available from RAL, BS & NCS

Thermoguard Timbercoat 30 Minute System

A 4,000+ colour intumescent paint system for interior and exterior timber surfaces. These packs have been created to help users ensure they are purchasing sufficient product for their project. Each pack contains the correct amount of basecoat (Timbercoat) and topcoat (Thermoguard Smoke & Flame Retardant (SFR) Dualcoat) to ensure...

Price £224.58 (incl. VAT)
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Thermoguard Thermoproof Exterior Fluid

Thermoguard Thermoproof Exterior Fluid

A penetrating fire proof fluid for bare wood such as sleepers, fencing, cladding and decking. The weather resistant, water-based, non flammable formula enables safe application by untrained and inexperienced users. Please Note: Timber must be a minimum of 12mm thick for the treatment to be effective Please note should you be unsure...

Price £163.91 (incl. VAT)
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Thermoguard Thermocoat WI 30min System for Universal Beams & Columns

Thermoguard Thermocoat WI 30min System for Universal Beams & Columns

30min system pack for universal beams and columns provides sufficient intumescent basecoat (Thermoguard Thermocoat WI) and coloured topcoat (Thermoguard Flame Retardant Topcoat) to protect suitably primed, standard ‘ɪ’ shape structural steel beams and columns in internal environments to 30 minute fire resistance. Achieves 1/2 hour (30 mins)...

Price £161.30 (incl. VAT)
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Thermoguard Thermocoat WI 60min System for Universal Beams & Columns

Thermoguard Thermocoat WI 60min System for Universal Beams & Columns

60min system pack for universal beams and columns is a pack that provides sufficient intumescent basecoat (Thermoguard Thermocoat WI) and coloured topcoat (Thermoguard Flame Retardant Topcoat) to protect suitably primed, standard ‘ɪ’ shape structural steel beams and columns in internal environments to 60 minute fire resistance. Achieves 1...

Price £161.30 (incl. VAT)
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Thermoguard Wallcoat BS Class 1/0 & EN Class B System | 4,000+ Colours Available From RAL, BS & NCS

Thermoguard Wallcoat BS Class 1/0 & EN Class B System

Fire retardant paint system in 4,000+ colours for interior plasterboard ceiling and wall surfaces. Each pack contains the correct amount of basecoat (Wallcoat Insulating Basecoat) and topcoat (Wallguard Smoke & Flame Retardant Topcoat) to ensure protection is achieved inline with the manufacturers recommendations to the respective area in...

Price £143.28 (incl. VAT)
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Thermoguard Flame Retardant Additive | Fire Protection Coatings

Thermoguard Flame Retardant Additive

This product is due to be discontinued once existing stock has depleted; if the quantity you require is unavailable please contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to find an alternative product. Thermoguard Flame Retardant Additive, a special flame retardant...

Price £13.52 (incl. VAT)
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Thermoguard Timbercoat Insulating Basecoat | 4000+ Colours Available from RAL, BS & NCS

Thermoguard Timbercoat Insulating Basecoat

4,000+ colours, durable fire protection paint for interior and exterior timber surfaces: Meets new Fire Regulations standard: BS EN Class B s1 d0, BS Class 1. Class O Surface Spread of Flame. Can also achieve 30 & 60 minutes Fire Resistance in certain instances. Expands to create a barrier, insulating wood from heat and oxygen....

Price £148.30 (incl. VAT)
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Thermoguard Thermoproof Interior Fluid

Thermoguard Thermoproof Interior Fluid

A fireproof penetrating fluid for porous internal wood - clear, colourless, penetrating Fire Protection In a fire, Thermoproof Interior reacts with the woods cells to create a flame & heat resistant barrier Tested to BS EN Class B s2 dO and Class O For 30 or 60 mins contact our Technical Team on 0113 2455450 (option 2) or send a...

Price £156.11 (incl. VAT)
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Thermoguard Fire Varnish Door Upgrade System

Thermoguard Fire Varnish Door Upgrade System

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 Authority approved projects following completion...

Price £404.71 (incl. VAT)
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Thermoguard Safewalls Anti-Viral Fire Protection System | Corona Kill

Thermoguard Safewalls Anti-Viral Fire Protection System

Fire protection system containing correct quantities of Safewalls Insulating Basecoat and Safewalls Onecoat Anti-Viral Smoke & Flame Retardant for 25m², 50m² and 100m² coverage respectively. Protects walls and ceilings covered with Wallpaper (but not vinyl) and Multi-Layer Paints. Contains CORONA-KILL® 99% bacteria reduction in 24...

Price £146.35 (incl. VAT)
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Thermoguard Fire Varnish Overcoat (Exterior) | Decorative Lacquer for Fire Varnish Basecoats

Thermoguard Fire Varnish Overcoat (Exterior)

A clear/wood stain-coloured decorative lacquer for use over Thermoguard Fire Varnish Basecoat for exterior surfaces. Each 20m2 pack of Thermoguard Fire Varnish Exterior Overcoat is sufficient to apply the required 2 coats to 20m2 of surface area. Important! Restricted to professional users. Not for sale to, or use by the general...

Price £156.11 (incl. VAT)
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Corona-Kill Fire Resistant Wall Paint | Certified Protection

Thermoguard Safewalls Insulating Basecoat

Achieves EN Class B s1 d0 as part of a two-coat system on walls painted with any number or combination of coats of any and all types of sound internal wall paints. Exceptional adhesion Permanent protection Anti-Viral and Anti-Bacterial Please note that colours chosen in this product will be produced as an 'undercoat shade' ready for...

Price £70.25 (incl. VAT)
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Thermoguard Wallcoat Insulating Basecoat | Fire Protection In 4000+ Colours

Thermoguard Wallcoat Insulating Basecoat

Intumescent basecoat to Thermoguard Wallcoat Smoke and Flame Retardant Topcoat in 4,000 colours,to upgrade potentially dangerous ‘multi-layer’ - previously painted - walls & ceilings in communal areas. Achieves EN Class B s1 d0 spread of flame on walls and ceilings Exceptional adhesion and permanent protection For painted plaster,...

Price £70.25 (incl. VAT)
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Thermoguard Wallcoat 60, 90 & 120 Minute System for Concrete | 4000+ Colours available from RAL, BS & NCS

Thermoguard Wallcoat 60, 90 & 120 Minute System for Concrete

Intumescent paint system in 4,000+ colours for interior fire rated concrete surfaces requiring an additional 30mins fire resistance - not subject to traffic. These packs have been created to help users ensure they are purchasing sufficient product for their project. Each pack contains the correct amount of basecoat (Wallcoat) and topcoat...

Price £217.43 (incl. VAT)
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Need Help?

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Thermoguard Fire Protection Coatings


Thermoguard has built its reputation as a specialist UK manufacturer of high-performance fire protection coatings, supplying trusted solutions that help meet Building Regulations without compromising on design. Their range includes intumescent paints that expand in fire conditions to form a thermal barrier, protecting timber and steel substrates from structural damage. Alongside this, their fire retardant paints work by releasing flame-inhibiting gases, reducing the spread of flame and smoke across walls, ceilings, and trim.

Thermoguard’s solutions are ideal for use in public buildings, schools, offices, residential developments, and listed properties. Their door upgrade kits allow contractors and building owners to convert existing solid timber doors to FD30 or FD60 standards, avoiding the cost and disruption of full door replacements. With finishes available in BS, RAL, and NCS colour systems, these coatings offer a seamless combination of compliance and aesthetics. A Certificate of Supply confirming performance standards can be provided with purchases for full traceability.

Thermoguard FAQs


What does Thermoguard intumescent paint do?

Intumescent paint swells under intense heat to form an insulating layer that protects structural materials—such as timber or steel—from reaching critical failure temperatures during a fire.

How does fire retardant paint differ from intumescent paint?

Fire retardant paint slows the spread of flame by releasing fire-suppressing gases. It is often used on walls, ceilings, and decorative timber where flame resistance is required but not structural protection.

Are Thermoguard products suitable for listed buildings?

Yes, Thermoguard offers clear and coloured finishes that meet fire safety standards while maintaining the aesthetic integrity of listed and heritage properties.

Can I upgrade existing doors to meet fire regulations?

Yes, Thermoguard’s door upgrade kits are designed to improve the fire resistance of existing solid wood doors, enabling them to meet FD30 or FD60 standards without full replacement.

Do Thermoguard paints come with certification?

Yes, a Certificate of Supply confirming fire protection performance can be requested with your purchase to help with compliance and inspections.