Jotun Steelmaster 1200WF
  • Jotun Steelmaster 1200WF

Jotun Steelmaster 1200WF


Jotun Steelmaster 1200WF is a one component waterborne acrylic thin film intumescent coating independently tested and approved for fire protection of structural steel exposed to cellulosic fire up to 180 minutes. Suitable for properly prepared carbon steel substrates.


Bulk Order Discounts

Min. Quantity Discount Price Per Item
10 5% £205.97
20 10% £195.13
£260.17 Incl. VAT
Please choose your colour
In Stock and Available for Delivery (See Delivery Options Below)


Jotun Steelmaster 1200WF is specially designed as passive fire protection for steel constructions. To be used as part of a complete system for interior environments up to C3.

Approvals and certificates

  • BS 476 part 20/21
  • ASTM E84

Additional certificates and approvals may be available on request.

Features & Benefits

  • Low thickness required
  • HAPS free, green product
  • Increases productivity
  • Ready to use, easy airless spray application
  • Quicker project completion
  • Low VOC, low environmental impact
  • Safe for multiple trades
  • Tested to BS 476 (20 and 21)

Ready to use, ease of application

Steelmaster 1200WF is applied using airless spray, roller and brush for touchup only. For the full guidance notes download the Steelmaster 1200WF application guide.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.

Product Details

Data sheet

Brush, Spray
Touch Dry
6 hours

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions Sayed on 2021-09-08 11:21:25

Can this paint use for galvanised steel ?


Assuming the galvanised steel is prepared as detailed in the technical data sheet and the appropriate primer is used yes it can be.

questions anand on 2021-02-19 08:18:02

How many liters is the can?. also roughly what is the ideal coverage liters/m2?


This product comes in 18.5ltr tins, there is not a set coverage rate for intumescents, depending on the steels and level of fire protection required this will vary.

We can assist you with a specification for the project and have contacted you directly for more information.

questions Tom Goring on 2020-05-14 11:12:52

Hi, Is this product clear ? We need 30min fire protection on some galvanised steel beams would it be suitable? Thanks


This product is white, please contact our Technical team on 0113 2455450 option 2 and we can assist you with a specification for the project.

questions JULIE ARNOLD on 2019-06-18 15:46:05

How much paint will I need to purchase to cover 2 x 150x90 PFC steel beams - 3585 long?


In addition to the information you have provided we would also need to know;

  • Level of fire protection required (i.e. 30, 60, 90min, etc.)
  • Orientation (horizontal or vertical)
  • Number of sides to be painted (all sides, 3 sides, 1 flange, etc.)
  • Environment (internal, external, car park, chemical exposure, etc.)
  • Application on site or in shop
questions Musfiqul Azad on 2019-06-01 14:33:25

Is that product certified by any third party ? if Yes, please mention the name of certification body.


Yes, this product has a Certifire Certificate of Approval No CF 5243.

questions BURCH on 2019-03-10 12:46:27

Can this material be applied by brush.


Application by brush is only recommended for stripe coating and small areas, care must be taken to achieve the specified dry film thickness.

questions Peter Richardson on 2019-01-15 22:09:25

Hello We have exposed steel rsjs in our new extension which we have built. We wpuld lile to paint them black to tie in with other structures. We know we have to paint them with intumesant paint but would lile some advice on which one and whether it is possible to apply a top coat of black. Whether that be a ajoining product by yourselves or some other. Also as the structure is in place is it possble to brush the coats on? Many thanks Peter Richardson


Thank you for your enquiry, please provide us with as much of the following information as possible;

  • Level of fire protection required (i.e. 30, 60, 90min, etc.)
  • Each steel section dimension (i.e. 254x146x37 UB)
  • Quantity and length of each section (or overall meterage for each section)
  • Orientation (horizontal or vertical)
  • Number of sides to be painted (all sides, 3 sides, 1 flange, etc.)
  • Environment (internal, external, car park, chemical exposure, etc.)
  • Application on site or in shop

Alternatively you can just forward us drawings, fabrication/cutting lists and we'll extract the information from them but in that instance we'd need some guidance as to what to allow for i.e. all steels on first floor, etc.

questions Colin McArdle on 2018-10-30 20:54:19

Do we need training by your company before we use 60 mins intumescent paint all are painters have nvq qualified,


Jotun don't state a requirement for any specific training but do advise the applicator should be skilled and competent to apply the product.


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