Jotun Steelmaster 1200 WF

Non Hazardous
A single component waterborne acrylic thin film intumescent coating for use to provide fire protection of structural steel exposed to cellluosic fire up to 120 minutes.
Available in White in 18.5 Litres
£364.14 £303.45
In stock
Product Description

Jotun Steelmaster 1200 WF is a single component waterborne acrylic thin film intumescent coating for use to provide fire protection of structural steel exposed to celulosic fire up to 120 minutes.

Best Uses

Jotun Steelmaster 1200 WF is a single component waterborne acrylic thin film intumescent basecoat normally applied by airless sprayer for use under Jotun Pioner Topcoat that has been independently approved for fire protection of structural steel exposed to celluosic fire in C1 to C3 environments. Suitable for various applications including airports, hotels, school buildings, train stations, stadia, shopping malls and many more.

Steelmaster 1200WF is compatible with a range of Jotun primers and topcoas to suit your products specification.


Jotun Steelmaster 1200 WF is a water based full-passive intumescent coatings especially formulated for application to structural steel. Jotun Steelmaster 1200 WF has been developed as a high build coating that is ideally applied by airless sprayer.

Jotun Steelmaster 1200 WF is able to provide up to two hours fire protection to most structural steel sizes subject to the correct thickness being applied. For calculations and advise on applying this and any other intumescent coating be it 30 minute or up to 120 minute as well as Class 'O' Spread of Flame, please contact the technical department at Promain.

Intumescent paint coatings are designed to expand in the event of a fire creating an insulating barrier around the steel slowing down the time taken for the steel to distort and finally collapse. Jotun Steelmaster has been tested to BS476 Part 20/21.

Please contact our technical team for loadings information in regards application prior to use.

IMPORTANT INTUMESCENT PRODUCT NOTE: Always contact Promain’s technical team prior to purchase to obtain a tailored project specification and the advice necessary. The information displayed on this website should only be used as a guide. Promain UK Limited will not be held liable for any resulting damage to property, human life or monetary costs incurred due to incorrect specification, preparation, application or maintenance that has occurred due to negligence by either the purchaser or applicator. This includes your failure to have contacted us to obtain the relevant advice/specification.

Technical Details


  • BS 476 part 20/21 - Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction
  • ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials
  • CE marked product with European Technical Assessment ETA-16/0513

Technical Info

Components: One Part
Type: Waterborne acrylic thin film intumescent coating
Finish: Semi Matt
Stock Colours: White
Tintable: No
VOC Content: 30.0g per litre
Volume Solids: 69%
Suitable Substrates: Apply on approved primers on carbon steel substrates
Application Method: Airless Spray or Brush
Theoretical Coverage: All steel sections must be coated with correct film thickness to achieve the required fire rating. Please contact our technical team to
see current loading tables and for further advice
Wet Film Thickness (WFT): 300 - 1000 microns
Dry Film Thickness (DFT): 210 - 690 microns
Induction Time: -
Pot Life: -
Touch Dry: 4 hours at 10°C
Overcoatable: 16 hours at 10°C
Fully Cured: -
Cleaner / Thinner: Water
Shelf Life: 6 months
Packaging: Available in 18.5 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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