This category lists intumescent paints and coatings for structural steel members such as beams, columns and hollow sections. These coatings can provide fire resistance for up-to 30 minutes in the event of a fire (cellulosic), so that the steel substrate does not reach its critical failure temperature. These thin film coatings react to the heat from a fire by expanding their thickness to a protective char layer of differing depths, dependant on product.
Please check product descriptions for fire rating compliance, application methods – brush, roller, or airless sprayer - colour options, and product compatible system recommendations – primers, basecoats, or topcoats.
Intumescent Paint for Steel disclaimer: Always ensure the product you are purchasing is suitable for the intended use/project. This will include but is not limited to gaining clarification that the product in question can achieve the required fire protection for the steel sections and environment you have. The sub-categories within the Intumescent Paints for Steel section allow users to filter by internal or external use, on-site or off-site application, and product type – water-based, solvent-based, epoxy-based and MMA-based. These are to be used as a guide only as there will be instances where a product will be able to achieve 90min protection on certain steel section sizes but not others, or where it is suitable for external use in environments up to C4 but not C5-M for example. For further product, project and pricing support, we ALWAYS recommend you contact our Technical Department before purchase and use.
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.
Bollom Brosteel Ultra 60, is 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...
Zeroflame Aquasteel WB+ is a white thin-film waterbourne intumescent coating with a new and improved formula designed to provide 30 and 60 minutes fire resistance on standard structural steel members in internal environments. It provides an easier and more efficient alternative to cladding steel members in plasterboard.
Thermoguard Thermocoat WI is a 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 Universal Beams, Columns and other open...
Thermoguard Thermocoat WO Ultimate is a 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...
Bollom Brosteel Ultra 60 - 30min System for Universal Beams & Columns is a pack that provides sufficient intumescent basecoat (Bollom Brosteel Ultra 60) and coloured topcoat (Bollom Flameguard Ultra Vinyl Matt, Bollom Flameguard Ultra Acrylic Eggshell) to protect suitably primed, standard ‘ɪ’ shape structural steel beams and columns in...
Zeroflame Aquasteel WB+ 30min System for Hollow Sections is a pack that provides sufficient intumescent basecoat (Zeroflame Aquasteel WB+) and coloured topcoat (Zeroflame Aquasteel WB+ Finish) to protect suitably primed, standard Square, Rectangular and Circular steel hollow sections in internal environments to 30 minute fire resistance....
Zeroflame Aquasteel WB+ 30min System for Universal Beams & Columns is a pack that provides sufficient intumescent basecoat (Zeroflame Aquasteel WB+) and coloured topcoat (Zeroflame Aquasteel WB+ Finish) to protect suitably primed, standard ‘ɪ’ shape structural steel beams and columns in internal environments to 30 minute fire resistance....
Nullifire SC802 On-Site Water-Based Intumescent Basecoat is a water- based, white, thin film intumescent coating for the protection of internal structural steelwork. Nullifire SC802 can provide up to 60 minutes fire resistance.
Includes Optifire+ technology - reliable and traceable fire protection
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Jotun Steelmaster 600WF is specially designed as passive fire protection for steel constructions. Designed to protect up to 60 minutes on a wide range of I section beams and columns. Will provide 90 minutes fire duration as per BS476 part 20-21. Suitable for structural steel exposed to internal environments up to corrosivity category C3 (ISO...
Protecta Steel Paint FR-1, a single component acrylic paint used for up to 60 minutes fire protection of loadbearing structural steel that normally requires no top coat, is easy to use and very easy to clean up.
Fire resistance approval - tested according to BS-EN 13381-8:2013
Available in 28 fire tested decorative shades, including...
Sherwin-Williams Firetex FX1003 is a single pack, thin film intumescent coating, designed for site application by airless spray, to provide ﬁre resistance for up to 120 minutes on structural steel.
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30-minute fire rated Intumescent coatings for steel available at Rawlins Paints can be applied to galvanised steel, mild steel and cast iron. Always check product data sheets for a full substrate application guide, to ensure that a product is suitable, and the manufacturer recommends for use on specific types of steel. Alternately, contact Rawlins Paints’ technical support team, where we will be able to provide more in-depth product information, along with recommending full intumescent paint systems for steel.
Product data sheets will dictate optimal fire protection and resistance from successful application, including:
Maximum achievable film thickness per coat (microns)
All of the intumescent paints we offer have been tested to varying British/European standards by recognised independent third parties depending on their required use and performance. In addition to these industry standard tests, some products also offer additional paperwork after use by way of a ‘certificate’ that can be obtained in different ways - manufacturer dependent. Some require a form to be completed and returned by email, others have online application forms, others can be simply called to provide project details verbally. Not ALL products offer this additional supplement and if this type of certificate is important to your project you should contact our Technical Team on 0113 2455450 (option 2) or [email protected] to advise them of this so they can ensure they recommend a suitable product accordingly. Certain larger projects may also require the involvement of an independent inspector, again you should contact our Technical Department to discuss this if required.
Our help and advice promise
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. Whether it’s structural steel in a warehouse, fire retardant paint for wood on a new-build, or the internal walls of a block of flats, we can provide a full specification and offer guidance throughout the project.