Jotun Steelmaster 1200WF Intumescent Paint for Steel – 25KG

Availability: In Stock

£210.83 inc. VAT: £253.00

Steelmaster 1200WF is the most efficient thin film water-borne intumescent coating for 120 minutes fire protection of structural steel exposed to cellulosic fire. Supplied in 18.5L drums.

Suitable for internal environmental conditions only.

Jotun Steelmaster 1200WF is a one component waterborne acrylic thin film intumescent steel paint designed for use in internal C1 to C3 environments. It can be used to achieve up to 2 hours fire protection. Independently tested and approved for fire protection of structural steel exposed to cellulosic fires, BS476 Pt 20 and 21.

Jotun Steelmaster 1200WF is a specially formulated water-borne intumescent steel paint that provides up to 120 minutes fire protection of structural steel exposed to cellulosic fire. It can be brushed to 500 microns per coat or spray applied to 1100 microns per coat.

Jotun Steelmaster 1200WF benefits from some of the lowest dry film thickness loading on the market for Universal Columns and Beams and is especially good on Circular, Square and Rectangular hollow sections.

Jotun Steelmaster 1200WF must be applied over the top of a compatible steel primer, please contact our technical team for assistance. We can supply Jotun topcoats to give a protective coating and also a decorative finish to your job. To see these products, click here.

Waterborne single pack.

Up to 120 minute protection.

Thin film intumescent.

Internal C1 to C3 environment. In a C2 environment, use Jotun Conseal TU topcoat. In a C3 environment, use Jotun Hardtop XP topcoat.

Tested to BS 476 part 20 and 21.

A FREE OF CHARGE take off and specification service is available and we trust the expertise of our estimators to the point that we certify our work.

All of our specifications are produced using the latest software by trained estimators with many years of experience within the industry.

To take advantage of this service we will need you to supply us with a list of steels with their lengths and orientations.

You can email across your structural engineers drawings to


The information displayed about the products on this website is to be used for guidance ONLY, we advise that all customer contact our technical department to obtain a free no obligation specification and quotation before purchasing goods directly from the website.

Products purchased directly from our website without specification will NOT qualify for certification.

Please be aware that any negligence caused by failure to obtain the relevant advice, or availment of our specification and estimation service, will absolve International Passive Fire Ltd from any liability should Passive Fire Protection Products prepared, or used, by the purchaser, or any other parties, result in damage to property or human life, or for any monetary costs incurred due to incorrect usage.


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Data Sheets

  • What is the spreading rate of this paint?
    With all intumescent paints for steel, there is no fixed spreading rate. This is because the amount needed varies depending on the size and shape of your steels.For a full specification, please email us the steel paint enquiry form, which can be found in the data sheets tab. Email address:
  • How much does intumescent paint expand?
    Intumescent paint expands to 50 times its dry film thickness. It is important that there is enough room around your steels to accommodate for this expansion gap.
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Internal or External Use

Coating Type