Price £153.98

Jotun Steelmaster 1200WF is a single-component waterborne acrylic thin film intumescent basecoat.

The most efficient thin film waterborne intumescent coating for 120 minutes fire protection of structural steel exposed to cellulosic fire. The low required thickness results in increased producivity and efficient project completion. Ecologically-friendly finish with low VOC content - maximum performance with minimum environmental impact.

Area of Use

Specially formulated for application to Structural steel exposed to a wide range of corrosive environments up to high as a part of a compelte coating system.

Substrates: Structual steel and carbon steel

Compatible with a range of Jotun primers and topcoats to suit your products specification.

Suitable for various applications including hotels, airpots, school buildings, train stations, sports stadia, shopping malls and many more!

Provides up to two hours fire protection to most structural steel sizes (subject to the correct thickness being applied - see below for application details). Product is ideally applied by airless sprayer for use under Jotun Pioner Topcoat, and has been independently approved for fire protection of structural steel exposed to celluosic fire in C1 to C3 environments.

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 1200WF has been tested to BS476 Part 20/21.

Available in White


  • Easy to apply - promoting greater efficiency during application
  • Waterborne fire protection, specific to steel architecture
  • Ready to use
  • Environmentally compliant
  • Reduced application time
  • Reduced site costs

Technical Information


Waterborne acrylic thin film intumescent coating

Coverage Approximately 3 - 5.5m2 per litre
Sheen Semi-Matt
Stock Colours White
Tintable No
VOC 30g/litre
Volume Solids 69%
Application Airless Spray or Brush
Drying Time 4 hours Touch Dry @ 10°C, 16 hours Overcoatable @ 10 °C
Wet Film Thickness (WFT)

300 -  1000 μm

Dry Film Thickness (DFT)

210 - 690 μm

Cleaner/Thinner Water
Storage Part A: 24 Months, Part B: 48 Months


Tech Data Sheet

Safety Data Sheet

Application Guide


To secure lasting adhesion to the subsequent product all surfaces shall be clean, dry and free from any contamination.

Substrate                              Minimum                                    Recommended                         
Carbon steel Clean, dry and undamaged compatible coating (ISO 12944-4 6.1.4) Clean, dry and undamaged compatible coating (ISO 12944-4 6.1.4)


The product can be applied by:

Spray Use Airless Spray
Brush Recommended for stripe coating and small areas, care must be taken to achieve the specified dry film thickness.


The product must be stored in accordance with national regulations. Keep the containers in a dry, cool, well ventilated space and away from sources of heat and ignition. Containers must be kept tightly closed. Handle with care.

When storing and transporting, the temperature must be between 5 and 25. Outside of this, it is adviseable to use climatic control. Protect from freezing at all times during storage and transport

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