Thermoguard Thermocoat W

Thermoguard Thermocoat W View larger
Typical Coverage (per coat)Refer to Technical Department
Touch Dry4 hours
ApplicationBrush, Roller, Spray
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.

Thermocoat W is an economical, water based intumescent paint system providing fire resistance to structural steel and cast iron for up to 90mins with a minimum number of coats.

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£52.00 + VAT

Thermocoat W is an economical, water based intumescent paint system providing fire resistance to structural steel and cast iron for up to 90 minutes with a minimum number of coats. A compatible decorative overcoat system ensures the system will enhance the building’s architectural and design features.

Thermoguard Thermocoat is designed for use on larger projects where our technical team can advise the exact amount of Thermocoat required, keeping costs down and making application easier. In most instances ½ hour fire resistance can be achieved with a single application of Thermocoat W and 1 hour fire resistant can be achieved with just two coats.

Thermocoat W is a low odour, water-based coating, making it user and environmentally friendly. Thermoguard Flame Retardant Topcoats are 2010 compliant and safe to use in accordance with manufacturer’s instructions.

The heat of a fire triggers a catalytic reaction, causing the expansion of an insulating char layer up to 50 times the paint thickness. This layer keeps the steel below its critical temperature, thus maintaining the structural integrity of the building.

Product performance assessment based upon UKAS/NAMAS Fire Test Laboratory Certification to BS 476 Part 21 - Fire resistance to load bearing elements of structures.
Please consult technical department 0113 2455450 for detailed specification advice.

A Certificate of Supply is issued on request for each specified project for insurance, Fire and Building Control Authority and Client Records.


  • Steel and cast iron should be free from rust and millscale and primed with Thermoguard High Build Metal Primer to 75 microns DFT in accordance with manufacturer’s instructions. Galvanised steel should be degreased and primed with a suitable etch primer.
  • Thermoguard High Build Metal Primer may be left without further overcoating or decorated with appropriate conventional paint where no fire resistance is required.

Apply Thermocoat to achieve fire resistance in accordance with the instructions provided by the technical department. When steel is visible or subject to variable or damp atmospheric conditions, apply 1-2 coats (dependant on specification) of Thermoguard Flame Retardant Topcoat (available in Gloss or Eggshell finishes).


  • Thermocoat W may be applied by brush, roller or airless spray. To achieve the best finish in the shortest time, spray application is recommended. Prior to application the contractor should contact the technical department and obtain an application schedule. To assist correct application in accordance with this schedule, a wet film gauge should be used, wet film gauges can be provided on request.
  • Maximum wet film thickness per brush coat – 800 microns
  • Maximum wet film thickness per spray coat – 1400 microns

Brush/roller application
Surface dry: minimum 2 hours
Recoat: minimum 4 hours
Overcoating with Flame Retardant finish: minimum 10 hours

Spray application
Surface dry: minimum 4 hours
Recoat: minimum 10 hours
Overcoating with Flame Retardant finish: minimum 48 hours

Thermocoat is available in 5kg and 20kg containers. Flame Retardant Topcoats are available in 2.5L and 5L sizes in a wide choice of colours and finishes.

Rawlins in-house estimators provide realistic, confidential guidance on project costing to contractors and quantity surveyors. We also provide expert advice and assistance with all aspects of specification and application.

Send us your question


hi we are looking for a minimum 60 minute fire protection, to the bottom section only ( rest of steel is built in) of an exposed steel beam above the entrance to an integral car port. we have approx. 60mtrs x 400mm wide to protect thickness of bottom flange approx. 35mm.regardsjohn doody

john doody from swindon (england) - 22/11/16


To achieve 60min protection on your steel, apply Thermoguard Thermocoat W @ 450 microns WFT. Followed by (once dry) 2 coats of Thermoguard Flame Retardant Topcoat in Eggshell or Gloss finish in the desired RAL or BS colour.

Steel must be clean, dry and well primed (no bare areas, rust or other paints/coatings present). Fire Certificate issued free of charge upon application, Wet Film Gauges supplied to measure as you go to ensure correct thickness is achieved.

Materials required for this project are as follows;

  • 3 x 5kg of Thermoguard Thermocoat W
  • 1 x 5lt Thermoguard Flame Retardant Topcoat

1. Un-primed steel sections must be primed with a suitable primer prior to the application of the intumescent paint.
2. Existing paint systems should be stripped back to bare steel, cleaned and degreased etc. prior to re-priming.
3. It is advised that you read and understand the relevant product data sheets before undertaking any projects.
4. Please check that steel specifications are correct before placing orders.
5. All of the above materials should be used in order to satisfy the project requirements.

We need to obtain 60 minutes fire protection, applying by brush and roller to a steel frame building. What thickness of application should we try to achieve and what coverage are we likely to obtain per litre?

Nick from Dorking (UK) - 15/04/16

To provide any information in relation to coverage or film thickness required for Thermoguard Thermocoat W we first need to know some details of the steel requiring protection. Please contact our Technical Department on 0113 2455450 or [email protected] 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, chemical exposure, etc.)

Alternatively you can just forward us drawings, fabrication/cutting lists and we'll extract the information from them.

How far will a 5kg of Thermoguard Thermocoat W paint in surface area? Can you paint this on wooden surfaces?

mark from Hook (Hampshire UK) - 03/12/15

Thermoguard Thermocoat W is for use on steel and the coverage is determined by the level of fire protection required (30min, 60min, etc.) and the size of the steels to be protected. If you require fire protection for wood see Thermoguard Timbercoat.

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Free delivery on orders over £75 (terms & conditions)

• Deliveries will be made within 3 working days (standard delivery)
• You must be UK mainland based for the free delivery offer.
• Postcodes listed are excluded from the free delivery and priced below.

Please note: deliveries will need to be signed for at the point of delivery.

UK Mainland OnlyUp to £75.00£75.01 +
Standard (2/3 working days)£8.00FREE
Next Day£15.00£15.00
Next day before 09:00am£30.00£30.00
Next day before 10:30am£25.00£25.00
Next day before 12:00pm£20.00£20.00
Saturday Delivery£35.00£35.00

£25 (Standard 2-3 Day Delivery Only)

AB30, AB31, AB32, AB33, AB34, AB35, AB36, AB37, AB38, AB44, AB45, AB46, AB47, AB48, AB49, AB50, AB51, AB52, AB53, AB54, AB55, AB56, FK, G83, IV, KW1, KW2, KW3, KW4, KW5, KW6, KW7, KW8, KW9, KW10, KW11, KW12, KW13, KW14, PA, PH, HS, KA27, KA28, ZE

£35 (Standard 2-3 Day Delivery Only)


£50 (Standard 2-3 Day Delivery Only)


Please note that all carriage prices are quoted without V.A.T. at the current rate.

Scottish Islands - outside standard distribution area, please contact us for a quote.

There may be an exception for heavy goods when purchased in quantity where we will contact you to advise any additional charges.

Next Day delivery and Saturday Service is available on stocked items for orders received before 11:00am only.

Because of the nature of our products, we use specially selected carriers to ensure safe and prompt delivery to you.

Please note: Any time or date named by Rawlins Paints Limited for delivery is given and intended as an estimate only and Rawlins Paints Limited shall not be liable to make good any damage or loss whether arising directly or indirectly out of a delay in delivery. Deliveries are made using a reliable nationwide carrier. Although over 99% of consignments arrive on time, we recommend that no labour is employed to undertake work until materials have arrived on site.

Thermoguard Thermocoat W TDS


Thermoguard Thermocoat W MSDS

Whilst every effort is made to ensure our data sheets are up to date, we advise you check the latest revision directly with the manufacturer to ensure you have the most current version.
E J Rawlins & Co. Ltd trading as Rawlins Paints make available product data sheets and information in good faith but without warranty. We do not accept liability for any errors or omissions contained within the data sheets or any outdated versions.