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Zeroflame Aquasteel WB+
  • Zeroflame Aquasteel WB+

Zeroflame Aquasteel WB+

ZFP400045

Zeroflame Aquasteel WB+ is a white thin-film waterbourne intumescent coating with a new and improved formula designed to provide 30 and 60 minutes fire resistance on standard structural steel members in internal envoronments. It provides an easier and more efficient alternative to cladding steel members in plasterboard.

  • New improved formula
  • Achieves both 1/2 hour and 1 hour fire resistance on structural steel
  • Suitable for use on all standard steel sizes and profiles
  • Tested to internationally accepted standards - BS476 Parts 20 and 21
  • Can be applied by brush, roller or airless spray
  • Simple specification
  • Certificate application included with each container
  • If a decorative finish is required, the product can be overcoated with Zeroflame Aquasteel WB+ Finish which has a wide range of colour options (RAL, BS & NCS)
  • Click to jump down to Technical Data

**Available for delivery - see Delivery Options below**

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Description

Zeroflame Aquasteel WB+ is a white thin-film waterborne intumescent coating with a new and improved formula designed to provide 30 and 60 minutes fire resistance on standard structural steel members in internal environments. It provides an easier and more efficient alternative to cladding steel members in plasterboard.

Normally calculating the required material to achieve fire protection for structural steel involves the complicated and time consuming process of getting details of all the steel members involved in the project and calculating the exact amount of material required for each one.

However, new and improved AquaSteel WB+ intumescent coating combines the ability to protect all standard steel sizes and profiles for both 1/2 hour and 1 hour fire resistance in a single product.

If a decorative finish is required, the product can be overcoated with Zeroflame Aquasteel WB+ Finish which has a wide range of colour options (RAL, BS & NCS)



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Features & Benefits


  • New improved formula
  • Designed to provide 30 and 60 minutes fire resistance on standard structural steel members in internal environments
  • Provides an easier and more efficient alternative to cladding steel members in plasterboard
  • Combines the ability to protect all standard steel sizes and profiles for both 1/2 hour and 1 hour fire resistance in a single product
  • Tested to internationally accepted standards - BS476 Parts 20 and 21
  • Waterborne
  • Can be applied by brush, roller or airless spray
  • Simple specification
  • Certificate application included with each container
  • If a decorative finish is required, the product can be overcoated with Zeroflame Aquasteel WB+ Finish which has a wide range of colour options (RAL, BS & NCS)



Coverage & Application Rates


Zeroflame Aquasteel WB+ is suitable for all types of structural steel, subject to the following miniumum steel thicknesses:

Section Flange/Wall Thickness Hp/A
Universal Beams Flange Thickness - 7.6mm 300m-1
Universal Columns Flange Thickness - 6.8mm 300m-1
Hollow Sections (1/2 hour) Wall Thickness - 3.6mm 300m-1
Rectangular Hollow Sections (1 hour) 4 sides Wall Thickness - 5.0mm 205m-1
Rectangular Hollow Sections (1 hour) 3 sides Wall Thickness - 8.0mm 205m-1
Circular Hollow Sections (1 hour) Wall Thickness - 6.0mm 205m-1



The table below gives the recommended coverage rates in m²/litre and wet and dry film thicknesses (WFT and DFT) in mm (1mm + 1000 microns):



Coverage Rates
Exposure Horizontal Beams Vertical Columns
  ½ Hour Fire Resistance
  m²/litre WFT DFT m²/litre WFT DFT
4-Sided 2.30 0.41 0.28 2.3 0.41 0.28
3-Sided 3.00 0.34 0.24 2.3 0.41 0.28
  1 Hour Fire Resistance
4-Sided 1.1 0.9 0.63 1.1 0.9 0.63
3-Sided 1.40 0.7 0.49 1.1 0.9 0.63
  Hollow Sections
  Square & Rectangular Circular
  ½ Hour Fire Resistance
4-Sided 1.9 0.52 0.37 1.9 0.52 0.37
  1 Hour Fire Resistance*
4-Sided 0.55 1.83 1.28 0.55 1.83 1.28



*Limited to Hp/A - 205m-1

For thinner/lighter members, please consult Zeroflame or contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.

Maximum Application Rates per coat:

Application Type m²/litre Wet Film Dry Film
Brush/Roller 1.6 0.61mm 0.43mm
Spray 1 1.00mm 0.70mm



Theoretical Coverage:

  • 0.43mm DFT:1.60m2/litre; 0.85kg/m2



Product Data


Technical Data
Specific Gravity 1.38 ± 0.02
Volume Solids 70% ± 2%
VOC 6g/l





Storage Instructions


  • Should be stored internally between 5°C and 30°C
  • At temperatures above 25°C, the shelf life will be reduced
  • Shelf life is usually 6 months in sealed containers
  • PROTECT FROM FROST



Surface Preparation


  • Steelwork must be primed with an anti-corrosion primer suited to the intended environment of the building
  • The primer must be applied to the manufacturer's specification with the exceptions that the Dry Film Thickness does not exceed 100 microns and that thermoplastic, bitumen or chlorinated rubber coating are not used
  • If the steel has been galvanised or coated with a zinc-rich primer a suitable tie-coat should be applied*
  • Before applying Zeroflame Aquasteel WB+ patch prime any damaged areas and ensure the surface is dry, free from rust, oil, grease, dust and other contaminants

*Please consult Zeroflame or contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.



Site Conditions During Application


  • Recommended for application to dry, protected, interior structural steels only
  • If the product is allowed to get wet, it is likely to become damaged and may cause blistering and wrinkling to occur
  • The product should only be applied when the air and steel temperatures are above 5°C
  • Relative humidity should be below 80% for successful application
  • Steel surface temperature should be a minimum of 3°C above the dew point
  • Ensure the steel is dry and protected from contact with rain or condensation during the application, drying and curing process



Application Methods


Zeroflame Aquasteel WB+ is supplied ready for use and must not be thinned but should be thoroughly mechanically stirred prior to use.

Application Type Details
Brush 3" Synthetic Filament Brush
Roller 4" Roller, 3/8" nap fabric
Airless Spray Operating pressure: 2500-3000 psi, Tip Size: 17-20 thou, Fan Angle 20°-40°, Hose Diameter: 10mm internal, Hose Length: Not exceeding 60 metres



Airless Spraying:

  • The product may be applied up to a maximum wet film thickness (WFT) of 1.0mm in a single spray coat comprising of several quick passes
  • Achieving maximum loadings will depend on site conditions
  • It may be possible to apply two coats in one day, particularly if the atmospheric temperature is above 20°C and the relative humidity below 70%
  • However, before doing this ensure that the previously applied coat is dry, particularly in the web/flange junctions

Brush/Roller Application:

  • Low surface temperatures may cause slumping at recommended coverage rates
  • To achieve maximum thickness when brushing, use a 'laying on' technique with a well loaded brush



Drying Times


Drying times between coats (20°C and 60% RH) are as follows:

  • Brush/Roller: - 4 hours
  • Spraying: - 6 hours
  • Application of Zeroflame Aquasteel WB+ Finish: Allow a minimum of 16 hours after final coat of Aquasteel WB+ before applying topcoat.

If applying Zeroflame Aquasteel WB+ off site, ensure the coating is fully cured, hard and dry before transport and erection, any damaged areas being made good.

Protect from frost and wetting until dry.



Health & Safety


  • Ensure good ventilation during application and drying
  • In case of insufficient ventilation, wear suitable respiratory equipment
  • Do not breathe spray
  • Wear suitable protective clothing and gloves
  • In case of contact with skin, wash well with plenty of soap and water
  • In case of contact with eyes, rinse immediately with water and seek medical advice
  • Keep out of reach of children
  • When not in use keep containers tightly closed

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.

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. 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
ZFP400045

Data sheet

Interior / Exterior Use
Interior
Water / Solvent Based
Water
For Use On
Steel
Application Method
Brush, roller, spray
Colour
Fully tintable
VOC Levels
Ultra-Low (5-49 g/l)
Single, Two or Three Pack
Single
Product Certifications
BS476 Parts 20 and 21
Pack Size
2.5L, 5L, 10L
Key Features
Achieves both 1/2 hour and 1 hour fire resistance on structural steel
Coverage
0.43mm DFT:1.60m2/litre; 0.85kg/m2 (Refer to table in data sheet)
Solids by Volume
70% ± 2%
VOC
6g/l
Touch Dry
2 hours
Drying time
Brush/Roller: - 4 hours (20°C and 60% RH)
Drying time
Spraying: - 6 hours (20°C and 60% RH)
Specific Gravity
1.38 ± 0.02
Attachments
Download


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 David de la Pena on 2019-06-03 14:09:59
Question: 

Is this Product BBA Approved?

Answer: 

No, it has been fire tested to BS476 Parts 20 and 21 by Warrington Certification Limited - Certifire Certificate of Approval No CF 655 a copy of which can be emailed on request.

questions Jo Chandler on 2019-05-10 14:20:33
Question: 

Hi, I am looking for fire retardant paint for metal walls, suitable for food production site Thanks Jo

Answer: 

We would require some more information for this enquiry, could you please contact our Technical Team on 0113 2455450 (option 2) or email [email protected]

questions David on 2019-04-22 10:20:59
Question: 

I have a CHS 88.9x4.0mm that requires 30min fire protection. It has been primed with zinc-rich paint. Please advise a suitable tie coat and intumescent product. I will need to colour match top coat the column at a later date. Thanks in advance.

Answer: 

A standard zinc phosphate primer is recommended as a tie-coat. Water based primers are not recommended because they draw the zinc salts out of the primer and they don’t react well to heat. Once prepared, Zeroflame Aquasteel WB+ and Zeroflame Aquasteel WB+ Finish can be used.

questions Tony Auger on 2019-03-26 14:31:55
Question: 

I have two vertical CHS columns 2.50 metres long each The diameter of the CHS is 139.70 mm Firstly, I calculate that to achieve a 30 minute FR the columns will require about 2 and a half litres of Aquasteel WB+ per m2 of surface area. So, approx. 5.50 litres total quantity. I have purchased 10 litres so quantity is ok, however, this does seem a heavy coverage rate and will surely be a rather thick coat. Indeed, what will the approx. overall thickness of the applied paint be and does it have to be a single coat application. I also have purchased the WB+ finish paint (black) to give the decorative finish I require. We are also hoping that the finish of the fire paint prior to the top coat will not be too rough prior to this decorative top coat paint. We can not spray paint due to the columns being within a finished new kitchen environment, so brush or roller it has to be. Any advice on application and how do you measure microns of paint, as we finally have to get a Building Control certificate, together with the Aquasteel certificate for sign off. As I say, I have purchased the paint and had one painter tell me that he can't achieve the required fire paint coatings with a brush or roller. Very appreciative of your comments. Thank you.

Answer: 

You have calculated 5.5 litres of Zeroflame Aquasteel WB+ correctly so each column should recieve 2.75 litres. Assuming the steel is suitably primed your applicator must apply 2.75 litres of Zeroflame Aquasteel WB+ to each column which will result in a DFT (Dry Film Thickness) of 1,680 microns. Application should not be attempted in 1 coat, instead your applicator should see how much they can apply comfortably and still maintain an acceptable smooth, decorative finish. Then allow to dry and apply further coats until the 2.75 litres has been used in full and then move to the next column. It would also be prudent to monitor the rate of application per coat with a Wet Film Gauge (one was sent FOC with your delivery) - total WFT to acheive is 2,330 microns.

questions Jon Roberts on 2019-01-08 14:03:25
Question: 

I need to provide 30 mins fire protection to a 70x70x5 SHS post which has a galvanised finish do i need to prep the post before painting? and if so with what?

Answer: 

Assuming the steel in question is in, and will remain in an internal, dry, heated environment, the coverage rate for Zeroflame Aquasteel WB+ to achieve 30min protection on your section size would be 1.2m² per litre. The bare galvanised steel should first be primed with Zinsser Bulls Eye 1-2-3 (see product data sheet for details on preparation), then the Zeroflame Aquasteel WB+ applied, then the Zeroflame Aquasteel WB+ Finish if the steel is remaining visible.

questions peter on 2018-12-06 08:49:57
Question: 

I need to provide 30 minute protection to a 100x100x10 SHS 3000mm tall column. Can you please confirm quantities in order to receive the relevant certificate. Many Thanks

Answer: 

You wold require 1 litre of Zeroflame Aquasteel WB+ so the smallest pack size (2.5lt) would be sufficient.

questions ian Westmorland on 2018-11-16 10:53:58
Question: 

I require a 30 min fire proofing on steels in my loft at the following sizes: 2 number of 254x254x6300 UC 1 number of 152x152x4800 UC Can you please let me know the best product and quantity i would require? Thanks,

Answer: 

Assuming your sections are mild steel, will remain permanently in an internal, dry environment and require 30min fire protection then you would require 10 litres of Zeroflame Aquasteel WB+. The steel must be first suitably primed with something like Rust-Oleum 3369/3380 CombiPrimer Anti-Corrosion and then finished with Zeroflame Aquasteel WB+ Finish in the colour and finish of your choice.

Once applied certification can be applied for by completing and returning the application form on the back of label on the can. Please read and understand the product data sheets taking careful note of assumptions made about steel sections sizes, minimum thicknesses, primer compatibility, etc.

questions Shaheed on 2018-11-09 08:24:57
Question: 

Can I overpaint zero flame with a different colour water based paint?

Answer: 

Zeroflame Aquasteel WB+ must only be overcoated with Zeroflame Aquasteel WB+ Finish.

questions Salina  on 2018-07-26 16:01:41
Question: 

Hi I am trying to find a clear fireproof paint for a steel support. I love the natural colour of the natural steel and want to not put any colour on it.

Answer: 

We do not offer a clear fire protection coatings for steel and are not aware of any currently in the market.

questions Luke on 2018-06-25 12:18:12
Question: 

Hi, I'm just finalising an extension and we have one exposed piece of steel (not boxed in) and need to treat this appropriately. It's a vertical steel sitting on the corner of the extension - with bi-fold wrapping around it either side. It's only 15cm in diameter and 2.2 metres high. Can I use this product directly on the steel? Are you allowed to then paint on top of this - so matching the colour of the bi-fold doors? Best Luke

Answer: 

Assuming your column is mild steel, will remain permantly in an internal, dry environment, requires 30min fire protection and has a minimum wall thickness of 4mm then you would require 2 litres of Zeroflame Aquasteel WB+. The steel must be first suitably primed with something like Rust-Oleum 3369/3380 CombiPrimer Anti-Corrosion and then finished with Zeroflame Aquasteel WB+ Finish in the colour and finish of your choice.

questions Robert Evans on 2018-06-22 09:06:34
Question: 

we would like to use your product to achieve 1 hour fire protection on existing wood panelling in a listed building. The panelling has been painted many times over the years and i am worried that when we apply your paint it may cause blistering and cracking. is this likely to happen?

Answer: 

Zeroflame Aquasteel WB+ is for use on steel not timber. For 60min protection we would instead recommend Thermoguard Timbercoat 30 & 60 Minute System. If you contact our technical Team (0113 2455450 opt. 2 or [email protected]) with how many square metres you have to protect and the thickness of the timber, they will be able to give you a full specification and quotation for your project.

questions Ben  on 2018-03-08 19:20:52
Question: 

I want to paint some steel columns and then cover with a powder coated aluminium cover. Does the aluminium overclad effect the performance of the paint or should we paint the aluminium cladding with the ford paint instead? Thanks, Ben

Answer: 

We could not offer anything to fire protect the aluminium cover but if the structural steel was coated successfully with something like Zeroflame Aquasteel WB+, then in the event of a fire the intumescent requires an uninhibited air gap for expansion equivalent to 50 x the DFT (dry film thickness) of the intumescent.

questions Nicola Greenwood on 2017-10-28 09:46:28
Question: If the steel rsj has a red oxide coating on it can Zero flame be painted directly onto this or does another primer need to be painted onto the steel first please? Many thanks.
Answer: 

Steelwork to be coated with Zeroflame Aquasteel WB+ must be primed with an anti-corrosion primer suited to the intended environment of the building and applied to the manufacturers specification with the exceptions that the Dry Film Thickness does not exceed 100 microns and that thermoplastic, bitumen or chlorinated rubber coatings are not used. If the steel has been galvanised or coated with a zinc rich primer, a suitable tie-coat should be applied (consult the Technical Department for guidance).

Before applying Zeroflame Aquasteel WB+, patch prime any damaged areas and ensure the surface is dry, free from rust, oil, grease, dust and other contaminants. Existing decorative finishes must be removed.

questions Nigel french on 2017-09-20 11:32:50
Question: How many coats of Zero flame required to steel beam? Beam has the normal dark pink coating applied. Thanks.
Answer: 

The number of coats and spreading rate you need to apply will depend on the steels you have to protect and the level of fire protection you require. Download the Technical Data Sheet (TDS) from the 'DATASHEETS' tab on the product page for details.

questions ian on 2017-09-13 16:09:54
Question:  For new un coated steel what is the best route. should i let the fabricators prime them in there normal red finish or use the Aquastel WB+ from the start?
Answer: 

Zeroflame Aquasteel WB+ must NOT be applied to bare steel. All steel should be suitably primed before application. Zeroflame recommend Rust-Oleum 3369/3380 CombiPrimer Anti-Corrosion for bare mild steel and Zinsser Bulls Eye 1-2-3 after preparation.

questions KJD on 2017-06-19 14:35:59
Question: Do you have to use a primer with Zeroflame Aquasteel WB+?
Answer: 

Steelwork to be coated with Zeroflame Aquasteel WB+ must be primed with an anti-corrosion primer suited to the intended environment of the building and applied to the manufacturer's specification with the exceptions that the Dry Film thickness does not exceed 100 microns and that thermoplastic, bitumen or chlorinated rubber coatings are not used. If the steel has been galvanised or coated with a zinc-rich primer, a suitable tie-coat should be applied. Consult Technical Department for advice.

Before applying Zeroflame Aquasteel WB+, patch prime any damaged areas and ensure the surface is dry, free from rust, oil grease, dust and other contaminants. Existing decorative finishes MUST be removed. 

questions Hol on 2015-10-13 04:54:53
Question: 

What is a suitable primer for the Zeroflame Aquasteel WB+?

questions John Smith on 2015-06-08 20:31:56
Question: 

I have a CHS steel column in my kitchen which requires 30 minute protection. Can Zeroflame Aquasteel WB+ be overpainted with normal waterbased eggshell?

Answer: 

No. The spreading rate for 30 minute protection on a CHS (assuming it is made from steel at least 4mm thick) will be 0.4m² per litre. Once Zeroflame Aquasteel WB+ has been applied as required, if it is to remain visible in the property it must be overcoated with Zeroflame Aquasteel WB+ Finish, this is a water based eggshell finish that can be mixed to any RAL or BS colour.

  

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