Zeroflame Aquasteel WB+ Finish



Zeroflame Aquasteel WB+ Finish is a hard-wearing flame-retardant topcoat for application over Zeroflame Aquasteel WB+ Intumescent Coating:

  • Class 0 fire rated finish on bare or previously painted non-combustible surfaces
  • Hard wearing, water-based acrylic eggshell or solvent-based gloss finish
  • High coverage rates
  • Wide colour range options (RAL, BS & NCS)
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Product Description

Zeroflame Aquasteeel WB+ Finish is an exceptionally hard wearing decorative finish for application over Zeroflame Aquasteel WB+ Intumescent Coating and as a Class 0 fire rated finish on bare or previously painted non-combustible surfaces.

Aquasteel WB+ Finish is available as a water based acrylic eggshell or solvent based gloss finish. Both Eggshell and Gloss finishes are available in nearly all BS, RAL and NCS colours.

Apply at a rate of 12m² per litre/per coat for Eggshell and 14m² per litre/per coat for Gloss over Zeroflame Aquasteel WB+ Intumescent Coating, one coat is normally sufficient but for dark contrasting colours two may be required.

Features and Benefits

  • Easily applied by brush, roller or spray
  • Hard wearing, eggshell or gloss finish
  • High coverage and wide colour range

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 ConditionsWe 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.

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)12m² per litre
Touch Dry4 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 Darren  on 05/04/2018

Is it possible to just use the eggshell finish coat over the top of a steel supporting girder previously coated in Hammerite to provide 30 min fire protection or does it specifically need the intumescent undercoat?


The intumescent basecoat (Zeroflame Aquasteel WB+) must be applied first to achieve any level of fire protection. In this instance the steels would need to be completely stripped of Hammerite would need to be completely before application of Zeroflame Aquasteel WB+ and Zeroflame Aquasteel WB+ Finish.

questions Stephen on 17/03/2018

I want to paint a flat metal roof (lift car )that has been graffitied would this be any good?


No, Zeroflame Aquasteel WB+ Finish is part of a fire protection system for structural steel and assuming you are not trying to achieve any level of fire protection we would instead recommend Rust-Oleum CombiColor, assuming this is the internal, underside of the metal roof and it had been previously painted before the graffiti attack. Clean graffiti off first as much as possible, you may require a stain blocking primer like Zinsser Cover Stain to be applied before the CombiColor finish if the graffiti is still visible.

questions Chris Burroughs on 19/10/2017
Question: Hi
I am installing a log burner and the surrounding wall is finished with sand and cement, what paint would you recommend?

Please refer to our blog post Painting the Walls around a Fireplace or Multi Fuel Stove for more details.

questions barbara lees on 23/01/2017
Question: We are currently converting our garage and do not want plasterboard walls! the building office says if we use panelling it must be class 1 spread of flame. We would like to use mdf 9mm wall panelling sheets so what paint would you recommend to make them conform?
questions aubert on 13/12/2015

Is Zeroflame Aquasteel WB+ Finish suitable to paint over the render of a chimney hearth?


No it isn't, we recommend using Thermoguard Wallcoat Smoke & Flame Retardant Topcoat. This product isn't heat resistant and may discolour over time if continually subjected to high temperatures, but it is a much safer alternative to standard emulsion.

questions Oliver Dew on 29/06/2015

Hi there, I was wondering if you can match Zeroflame Aquasteel WB+ Finish to any RAL or Pantone colour? Two colours I'm interested in are RAL 10A01 and Pantone warm gray u.


We can mix Zeroflame Aquasteel WB+ Finish to most RAL, BS and NCS colours. We cannot produce Pantone colours but can offer the 10A01 you have asked for, this is actually in the BS 4800 colour range not RAL and is available to select as a standard colour from the options listed on the product on our website.


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