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Fire Retardant Paints

Fire retardant paints are most frequently used in large scale industrial spaces, public buildings and facilities, or on new builds. They can also be used on smaller DIY projects, but not for those tasks that simply require heat resistant paint, like BBQs and exhaust pipes. Certain substrates and surfaces will require specialist fireproofing coatings, such as varnishes or intumescent paint

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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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Zeroflame Fire Retardant Treatment For Timber & Wood | Fire Protection

Zeroflame Fire Retardant Treatment

For use on bare, solid wood with a minimum thickness greater than 12mm. Soaks virtually ‘invisibly’ into the wood. Achieves Euroclass B s2 d0 (replaces UK Classes ‘0’ and ‘1’ BS 476 Part 6/7*). Can be overcoated for decorative purposes with waterborne, non-flammable stains, varnishes and paints. For internal and external use. Simple...

Price £204.02 (incl. VAT)
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Bollom Brosteel Ultra 60 Intumescent Paint for Steel

Bollom Brosteel Ultra 60

A new and improved revolutionary thin-film waterborne white intumescent paint for standard, interior structural steel members, providing 30 minutes fire protection in only one coat and 60 minutes in two coats - see below for details.  For internal use only Water-based - quick drying thin-film intumescent coating Certificate of Conformance...

Price £78.08 (incl. VAT)
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Zeroflame Fire Retardant Paint: Euroclass B s2 d0 Protection

Zeroflame Fire Retardant Paint

A matt white, single-pack waterborne coating for wood that reduces ignitability for interior surfaces. Achieves Euroclass B s2 d0 (replaces UK Classes ‘0’ and ‘1’ BS 476 Part 6/7*). Can be overcoated with waterborne, non-flammable paints. Simple certificate application following purchase and application. Internal use. Can be applied by...

Price £169.15 (incl. VAT)
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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 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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Fire Retardant Paints – Where to Use It, and Where Not To


Fire retardant paints are coatings applied to various materials, primarily wood and wood-based products, to enhance their fire performance. These paints are part of passive fire protection measures, such as fire stopping, which do not require activation to function effectively. Fire retardant paints improve the reaction to fire performance of the surfaces they cover, helping to prevent the spread of flames and reducing the heat released during a fire.

Fire retardant paints are crucial in improving the fire safety of buildings and structures by enhancing their resistance to fire and controlling the spread of flames. There are several types of fire-retardant paints, each designed for specific applications and materials. Here is an overview of the different types, their applications, and typical uses:

Fire Retardant Paints FAQs


Do Fire Retardant Paints Comply with UK Building Regulations?

Yes. Fire retardant paints are tested to recognised standards, including BS 476 and EN 13501, to help meet fire safety requirements. However, full compliance depends on the entire system and structure, not just the paint alone.

How Long Does Fire Protection from Intumescent Paint Last?

Most systems offer fire resistance for 30, 60, 90, or 120 minutes, depending on the product, thickness, and tested system. The duration must match the fire protection rating required for the building or structure.

Can Fire Retardant Paint Be Overcoated with Decorative Finishes?

Yes, many fire retardant coatings allow for overcoating with approved decorative finishes, such as water-based emulsions or flame-retardant topcoats. Always check compatibility before applying additional layers.

Is Fire Retardant Paint a Substitute for Other Fire Protection Measures?

No. Fire retardant coatings are part of a wider passive fire protection strategy. They do not replace alarms, sprinklers, or compartmentation but can enhance fire resistance of materials.

How Is the Correct Thickness of Fire Retardant Paint Determined?

The required thickness is calculated based on substrate type, fire rating, and material dimensions. For intumescent coatings on steel, for example, a loading table or bespoke specification is needed.

Does Fire Retardant Paint Require Professional Application?

Some systems can be brush- or roller-applied by competent tradespeople, but complex projects—especially on steelwork or in high-risk buildings—should be handled by trained fire protection contractors.