For sales or technical enquiries call:

01752 690997 or 0800 0277 955

Or email us: ku.oc1503131153.tnia1503131153pfoor1503131153perif1503131153@sela1503131153s1503131153

About Intumescent Paint For Steel

Intumescent steel paints and coatings are available in Water and Solvent based forms with fire ratings of 30, 60, 90 and 120 minutes, utilising thin film intumescent technology and thick film intumescent technology. We can also supply non-reactive fire protection up to 4 hours using cementitious sprays or boarding systems.

How does an intumescent paint protect steel and why is it needed?

Intumescent steel paints are what we refer to as “Reactive Paints”. When the paint is subjected to heat it will react. In the case of an intumescent paint when subjected to temperatures exceeding 120°C the paint will intumesce (Swell up to 50 times the thickness of the paint) and form an carbon layer (Char) which thermally insulates the steel substrate and maintain a temperature below 550°C or 620°C for a given period of time (30, 60, 90 or 120 minutes). In a fire it is critical that the structural steel frame of the building is protected correctly so that the steels do not reach their critical failure temperature (Temperatures between 550°C and 620°C)

Below this critical temperature the structural steel exists in a state of “Elasticity”, this allows the steel to bend/deflect and return to its original state once the force has been removed. If the temperature increases above the critical temperatures the structural steel under load goes into a state called “Plastic” which means the steel will buckle and bend potentially causing the building to collapse.

In Summary, Intumescent steel paint thermally insulates structural steel in a fire, stopping premature collapse of the building.

For details regarding our paints finishes, listings, approvals and compliance, please get in touch, or contact our free estimating department on 0800 0277 955

Fire Certification and test standards

All of our products that we sell are fire tested to British and or European standards, Intumescent paint for steel use the following standards:

– European Union: EN 13381-8

– United Kingdom: BS 476-20/21

Specification And Estimations For Intumescent Paint And Its Application

Intumescent paints are the most common form of fire protection to steel, this is because of how widely available the products are and how cheap they are. At International Passive Fire Ltd we have a whole department set up to deal with Specifications and Estimations for Intumescent Steel Paint. Our technical specification and estimating department consists of over 50 years of experience in the structural passive fire protection field and is completely independent of all manufacturers. Also, all of our work is free of charge (FOA).

We aim to give all customers whether big or small the same high value service and back up to ensure that all jobs are completed and certified on time. We can help you when applying intumescent paint to steelwork to ensure the process is smooth and easy and to guarantee that the paint will give the correct fire protection required.

At International Passive Fire Ltd. we offer a DFT survey for all completed work along with a report details DFT loads and fire resistance of the steel. If this service is of interest please contact us on 0800 0277 955 for more details.

Application Of Intumescent Steel Paints

Application of Intumescent steel paints is very easy. You can apply the paint using a brush or spray machine. Typically brush application is up to 500 microns per coat and spray is 1000 microns per coat. It is important that drying times are adhered to before application of the second or third coat to ensure the paint will protect the steel.

During application a Wet Film Gauge is used to measure the thickness of each coat of paint. these gauges are supplied free of charge to all of our customers.

Do I need a topcoat?

The topcoat of an intumescent paint system is solely used to protect the intumescent coating from the environment that it is in or as a decorative finish coat that can be coloured to most RAL or BS colour codes upon request. The finish of these top coats is usually SATIN or GLOSS however we have several products that finish in MATT. Not all jobs jobs require a topcoat however if the steel is external or internal in a high moisture environment, then YES you will need a topcoat.

Before buying any intumescent paint for steel you must make sure that a full specification has been undertaken listing all structural steel that need to be protected.

About International Passive Fire Ltd

With over 50 years of experience in the passive fire protection industry, International Passive Fire Ltd provides independent estimating services for intumescent coatings, epoxy intumescent and boarding systems for structural steel.

Call our technical department free on 0800 0277 955 to discuss our free estimating and specification services.

Showing all 17 results

Envirograf EP/FS/INT Steel Intumescent Coating 1L

EP/FS/INT Steel Intumescent Coating structural steel and cast iron Water based intumescent coating for the protection of steel and aluminium. Has a smooth finish which can be easily painted over with any good quality paint for decorative purposes. Can be easily applied to surfaces by...

Envirograf EP/FS/ Primer 1L

EP/FS/ Primer is a water based corrosion resistant primer for steel. For use under Envirograf® Intumescent steel paint. This Product contains anti-corrosion additives which prevent the spread of rust on metal. It also contains flash rust inhibitors. This Product can be stored for up to...

Sherwin-Williams FireTex FX5120 – Intumescent 20L

Waterborne intumescent coating designed for internal structural steelwork. Provides up to 2 hours resistance. Tested in accordance with UL 263 (ASTM E-119) and CAN/ULC-S101. Highly competitive loadings. Easy application properties. Impact Resistant. Low odour, low VOC.[Product-Page-Short-Description-Call-To-Action]

Jotun Steelmaster 60WB – 25kg

Jotun Steelmaster 60WB is a one component waterborne acrylic thin film intumescent steel paint designed for use in internal C1 to C3 environments. Independently tested and approved for fire protection of structural steel exposed to cellulosic fires, BS476 Pt 20 and 21. Jotun Steelmaster 60WB...

Jotun Steelmaster 60WB – 5L

Rated 5.00 out of 5
1 review(s)

Jotun Steelmaster 60WB – 5L

Rated 5.00 out of 5
( 1 review(s) )
Jotun Steelmaster 60WB is a one component waterborne acrylic thin film intumescent steel paint designed for use in internal C1 to C3 environments. Independently tested and approved for fire protection of structural steel exposed to cellulosic fires, BS476 Pt 20 and 21. Jotun Steelmaster 60WB...

Sherwin-Williams Firetex M71V2 Topcoat 5L

A Sheen finish topcoat for overcoating the FIRETEX range of single pack intumescent coatings. Recommended use - as a decorative topcoat for the FIRETEX range of single pack intumescent coatings but also to provide protection when used in internal semi-controlled conditions with no condensation/moisture. This...

Sherwin-Williams Resistex C137V2 Topcoat 5L

A high performance fast drying acrylic urethane gloss finish for use where long term exterior gloss and colour retention characteristics are required. Recommended use - as a decorative topcoat for the FIRETEX range of single pack intumescent coatings but also to provide protection when used...

Sherwin-Williams Envirogard M770 Topcoat 5L

Water based quick drying gloss finish or sealercoat for the entire FX product range. Recommended use - as a finish for use in areas where solvent emissions are not desirable. Also used as an essential decorative sealercoat for the FX product range to provide resistance...

Sherwin-Williams Firetex FX5062 Intumescent 20L

Waterborne intumescent coating designed for internal structural steelwork. Provides up to 90 minutes fire protection of structural steelwork. This product has been tested and assessed in accordance with the ASFP fire testing protocol for cellular beam protection. Highly competitive loadings. Easy application properties. TCEP free...

Sherwin-Williams Firetex FX1003 – Intumescent 20L

Intumescent coating designed for structural steelwork. Provides up to 120 minutes resistance. Certifire approved - Certificate CF5077. Highly competitive loadings. Easy application properties. Firetex FX1003 can be exposed to the weather for up to 6 months provided that the specific use does not lead to...

Jotun Hardtop AS – Topcoat 5L

Hardtop AS is a glossy two pack polyurethane topcoat with excellent gloss and colour retention that can be used over the Jotamastic & Penguard range of primers. This product cannot be ordered through the website, if you require the product please contact our sales team...

Jotun Jotamastic 80 – Primer 5L

Jotun Jotamastic 80 is a two-pack surface tolerant, abrasion resistant, high solids polyamine cured epoxy mastic coating which may be applied in high film thickness. This product cannot be ordered through the website, if you require the product please contact our sales team with a...

Jotun Steelmaster 120SB – Intumescent 20L

Jotun Steelmaster 120SB is a new 2 hour one component solventborne acrylic thin film intumescent steel paint designed for use in internal and external C1 to C4 environments. Independently tested and approved for fire protection of structural steel exposed to cellulosic fires, BS476 Pt 20...

Jotun Pioner Topcoat – 5L

Pioner Topcoat is an easy to use one component acrylic finish coat available in a wide range of colours. This product cannot be ordered through the website, if you require the product please contact our sales team with a RAL or BS code for the...

Jotun Pilot QD Primer – 5L

Jotun Pilot QD Primer is a single pack high build zinc phosphate alkyd. Jotun Pilot QD Primer is a single pack high build oxidatively drying alkyd coating which is zinc phosphate pigmented. Jotun Pilot QD Primer has been formulated to offer an extended wet edge...

Jotun Steelmaster 1200WF – 25KG

Steelmaster 1200WF is the most efficient thin film water-borne intumescent coating for 120 minutes fire protection of structural steel exposed to cellulosic fire. 25kg.[Product-Page-Short-Description-Call-To-Action]

Jotun Steelmaster 60SB – 20 Litre

Steelmaster 60SB is a solvent based intumescent coating that provides up to 60 minutes fire protection of structural steel exposed to cellulosic fire. 20 Litre.[Product-Page-Short-Description-Call-To-Action]
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