Jotun Steelmaster 600WF. 90 Mins Fire Protection for Steel

Steelmaster 600WF is formulated to provide up to 90 minutes Fire Protection on Structural Steel Columns and Beams.

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Jotun Steelmaster 600WF. 90 Mins Fire Protection for Steel

Stellmaster 600WF is formulated to provide up to 90 minutes fire protection on structural steel. A low odour white finish with high coverage rates and lower paint requirements compared to other intumescents. It is a single pack high solids waterborne thin film intumescent suitable for structural steel, beams and columns exposed to cellulosic fire. Ideal for the protection of steel buildings for 30 minutes, 60 minutes and 90 minutes fire protection. Designed for high performance and minimum environmental impact. Steelmaster contributes to Green Building Standard credits approved by LEED and BREEAM. EPD Verified. A low odour environmentally compliant coating CE marked by European Technical Assessment ETA-20/1297. Steelmaster 600WF is quality guaranteed by Exova Warrington Fire Research meeting the requirements of BS476 part 20/21 Certifire  CF5631, ASTM E84 Class A and EN 13381-8. Tested to EN 13501-1 it has a Reaction to Fire Class B-s1, d0 . It is suitable as a finish coat internally or externally up to corrosivity category C3 (ISO 12944-2).

  • Up to 90 mins fire protection on Structural Steel. High Solids Intumescent Paint. Meets the requirements of BS476 part 20/21, ASTM E84 Class A.
  • Steelmaster 600WF Guaranteed by Exova Warrington Fire Research. CE Marked. Reaction to Fire Class B-s1, d0. (EN 13501-1) Free estimation and Specification Service.
  • Waterbased Intumescent Paint. LEED & BREEAM Certified. Low VOCs. EPD Verified. Contributes to Green Building Standards. Free UK Next Day Delivery.

Environmental Credentials

Waterbased Intumescent Paint.

Low VOCs 17g/lt.

White Swan Label.

LEED & BREEAM Certified.

EPD Verified.

Green Building Credits.

CE Marked.

Technical Data

Exova Fire Tested up to 90 mins.

Reaction to Fire Class B-s1 d0 (EN13501-1).

BS476 part 20/21: Certifire CF 5631.

European Technical Assessment ETA -20/1297.

RT 1356 Cellular Beams.


ASTM E84 Class A

High Build upto 710 microns per coat.

High Volume Solids 73%.


Surface Preparation

Surface preparation and coating should normally be commenced only after all welding, removal of sharp edges and treatment of welds is complete. Most primers will require the steel to be abrasive blast cleaned prior to application. Jotun Pilot QD zinc phosphate primer has been fire tested and recommended for most internal steelwork. For more corrosive environments Penguard Express ZP is the recommended primer. Ensure the primed surface is free from oil grease and other contaminants prior to application of Steelmaster. Should a final colour topcoat be required Jotun Conseal TU and Hardtop HB are recommended. Both available in a range of RAL and British Standard Colours. For more technical information on Steelmaster 600WF download the technical data sheet.

Steelmaster 600WF is a single pack, high solids, waterbourne thin film intumescent coating independently approved for up to 90 minutes fire protection on structural steel exposed to cellulosic fire. It is Quality Guaranteed by Exova Warrington Fire Research with high coverage rates and significantly lower product useage than other intumescents, protecting I-sections, beams and columns up to 90 minutes fire protection.

Steelmaster 600WF Intumescent Paint can be used as a midcoat or finish coat in atmospheric environments, for carbon steel substrates it should be applied on approved primers , such as Pilot QD or Penguard Express. It has low VOCs and is specially designed as passive fire protection for steel constructions. It is suitable for structural steel to be used internally or externally up to corrosivity category C3 (ISO 12944-2).  Applied up to 710 microns dry film thickness in a single coat  by airless spray. Brush or roller application is only recommended for stripe coating and small areas,  multicoats may be required to achieve the recommended DFT.

Steelmaster 600WF is an environmentally compliant waterbased coating with low VOCs it contributes to the Green Buildings Standard Credits,  CE marked product with European Technical Assessment ETA-19/0005. It meets the requirements of BS476 part 20/21, ASTM E84 and EN 13381-8. Reaction to Fire Class B-s1, d0 (EN 13501-1).

Steelmaster 600WF Intumescent Paint is available in a white finish , it may be overcoated with any approved topcoat such as Conseal TU or Hardtop CA both available in a wide range of RAL or BS Colours.

A free estimation service is available to calculate loading requirements to achieve the required fire protection. E mail the drawings with steel section dimensions to Avace for confirmation of the theoretical coverage rates and Intumescent paint requirements. Please remember to include appropriate loss factors, such as overspray and spillage when calculating your actual requirements.


We are committed to the environment using only natural raw materials. Awarded  the White Swan Certificate, representing rigorous achievement across five critical categories: material health, material recycling, renewable energy and carbon management, water stewardship and social fairness, requiring continual improvement. Products with a whole green life cycle complying with Reuse, Reduce and Recycle philosophy, guaranteeing the most efficient use of materials.

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