Thermoguard Wallcoat Smoke & Flame Retardant Topcoat


Thermoguard Wallcoat Smoke & Flame Retardant Topcoat is a new generation of fire retardant topcoat and maintenance paint for walls and ceilings protected with Thermoguard Wallcoat Basecoat. As part of a complete system it controls surface spread of flame and fire propagation, total smoke control, flaming droplets and particulates to BS EN Class B s1 d0.

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Product Description

Thermoguard Wallcoat Smoke & Flame Retardant Topcoat is available in an Acrylic Matt or Acrylic Eggshell finishes in the full RAL, BS and NCS colour ranges (exlcuding fluorescent and metallic shades). It is for use as a topcoat to complete the Thermoguard Wallcoat upgrading system for walls and ceilings.

When used as instructed with Thermoguard Wallcoat, Thermoguard Wallcoat Smoke & Flame Retardant Topcoat completes a system that meets new Fire Regulations standard BS EN Class B s1 d0 and complies with British Standard Class 1 and Class 0 Surface Spread of Flame. The system can also achieve 30 & 60 minutes Fire Resistance in certain instances but our Technical Department MUST be contacted prior to use (0113 2455450).

Wallcoat System
Thermoguard Wallcoat is an intumescent paint basecoat with smoke and flame Retardant properties for upgrading potentially dangerous ‘multi-layer’ previously painted walls & ceilings. It controls surface spread of flame and fire propagation to Class 0 & EN Class B. Total smoke control, flaming droplets and particulates to EN Class B s1 d0. Thermoguard Wallcoat Smoke and Flame Retardant Topcoat is a compatible, water-borne specialist finish that allow owners and operators of buildings to fulfil their Duty of Care for Fire Safety without having to compromise aesthetics by using it to finish the Wallcoat basecoat system.

To Specify, Simply State
To achieve BS EN Class B sl, d0, inspect and prepare in accordance with manufacturer’s instructions and apply -

  • 1 coat of Thermoguard Wallcoat
  • 1 coat of Thermoguard Wallcoat Smoke & Flame Retardant Matt or Eggshell Finish

Fire Testing & Certification
Tested at UKAS Fire Test Laboratory -

  • Achieved BS EN Class B s1 d0 - Highest standard

We issue a Fire Certificate upon request for each correctly specified project for Insurance, Fire and Building Authority and Client Records against proof of purchase. Certified Fire protection is guaranteed if all instructions are followed on suitable surfaces.

Flamespread & Smoke Protection
When exposed to fire, Thermoguard Wallcoat expands to create a fire protective barrier, insulating surfaces from heat and oxygen and preventing combustion. Thermoguard Wallcoat Smoke & Flame Retardant Topcoats (Matt & Eggshell) actively suppress smoke, particles and flaming droplets.

UK Fire Safety Order 2005, Flamespread and Smoke
The Fire Safety Order 2005 requires property managers to comply with current fire standards for corridors, stairways, entrance lobbies etc. Even on non-combustible walls & ceilings, multiple layers of incompatible paints “Multi-Layer” often create the worst Class 4 - EN Class E - Surface Spread of Flame risk.

While the British Class 0 is still accepted, it will soon become defunct, as it has been superseded by the safer standard BS EN Class B s1 d0, with its more rigorous flame-spread protection and control of dangerous smoke and burnt particulates.

NEW EU/BS EN Fire Standard Explained

  • EU fire standard BS EN Class B replaces BS476 Class 0
  • In 2012 both BS476 and BS EN comply, but BS 476 is rapidly being replaced by the more severe and realistic EN test including air flow.
  • BS EN also monitors dangerous smoke. The safest class is s1
  • BS EN also measures flaming droplets & burnt particulates. The safest class is d0
  • The new safest standard for corridors, stairs etc is BS EN Class B s1 d0.

Finish, Colours and Availability

  • Wallcoat Smoke & Flame Retardant Topcoat is available in Matt or Eggshell finish in White, BS 4800, BS 381C, RAL and NCS colours (not metallic or fluorescent shades)
  • Wallcoat is available in White Matt only as it is a basecoat
  • Wallcoat and Wallcoat Smoke & Flame Retardant Topcoat are sold in 25m² and 100m² cans

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)Supplied in pre-measured packs to apply 1 coat to 25m² or 100m²
Touch Dry2 hours
ApplicationBrush, Roller, Spray
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


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 jan parry on 17/03/2018

Is this suitable for painting cement hearths of solid fuel grates which will have occasional use ? Are the paints heat resistant and if so up to what temperature ? thank you


Fire protection products are reactive and if the surface gets over 200°C they will react to protect from fire. Over 100°C and coloured finishes like Thermoguard Wallcoat Smoke & Flame Retardant Topcoat would discolour. If the surfaces you wish to paint around your fireplace do not exceed these temperatures then the Thermoguard Wallcoat Smoke & Flame Retardant Topcoat would be OK to use.

questions Pete box on 17/10/2017
Question: Please can you tell me how long the working application time is with this product once mixed.

So if I mixed a 100sqm measure will I have enough time to use it

Thank you

Thermoguard Wallcoat Smoke & Flame Retardant Topcoat is a single pack product, other than stirring before use there is no mixing of a base and an activator as it is not a two pack product so there is also no 'pot life' as you would get with a two component material.

questions geoff billing on 15/05/2017
Question: can you send sample colors of the paint ? and what is eggshell , is it just where it has a sheen ?
look forward to your reply

We don't offer samples of fire retardant products, however the colours this product comes in are RAL, BS and NCS which are not unique to the product. These colour ranges are industry standards which are available in a wide range of products so you may be able to find a product locally in the colours you wish to test prior to purchase.

With regards to the finishes of Thermoguard Wallcoat Smoke & Flame Retardant Topcoat, Matt has almost no sheen whatsoever and Eggshell offers a subtle sheen level.

questions Catriona Levshankova on 21/11/2016
Question: 1. I have an open chimney space with a wood burner that spans two rooms (double sided wood burner). Is this paint suitable to go on the wall of an open chimney space with wood burner? The wall is 18 cms away from the side of the wood burner.

2. Can I get a physical colour chart rather than an on line version?

Many thanks

We've written a blog post to help customers wanting to paint their fire surrounds, read the full article; Painting the Walls around a Fireplace or Multi Fuel Stove.


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