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CT-7571 Corten / Weathering Steel Sealer

CT-7571 is the worlds longest lasting and most effective coating that protects Corten Weathering steel from continuing to corrode and weather. The coating protects steel from UV, oxidation, bleaches and acids to ensure the desired patina remains perfect for the lifetime of the coating.

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* World leaders in Corten ageing and sealing *

Application / Aftercare

Data Sheets / MSDS

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Image by Simon Kadula

About CT-7571 Range

With over 20 years' experience working with Corten, we introduce the world's longest-lasting and most effective protective coating for Corten and Weathering Steel.

The new water-based product for 2022, CT-7571-W offers unparalleled protection and sealing properties with the addition of alcohol protection. The new water-based formula has a lower odour compared to the old product and is ideal for use inside and in confined spaces. This model has a transparent texture that does not affect the colour of the substrate itself.

As world leaders in the process of aging and sealing of weathering steel, BROMOCO understand that in a world that needs to reduce its environmental impact and adopt sustainable manufacturing practises water-based products are becoming the new standard. We will be fully water based for 2023.

Note: Our old version solvent based CT-7571-T is currently being phased out and is only supplied if required. If you require a darker colour to achieve a more vintage visual aesthetic and design requirement, please click [Contact Us] for more information. You can see the difference between the two versions by clicking here →.

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Low

odour

Perfect for application internally and in confined spaces.

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5 year guarantee

Long lasting and hard wearing proven in real time to exceed its guarantee period of 5 years. Guaranteed not to crack, peel or fade. No decomposition if the conditions for storage and handling are satisfied.

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Better coverage rate

Up to 4 times greater coverage than alternative products on the market.

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Finish shaping

The product contributes to the visual application with a crystal clear hard waring finish after it has dried. Helping users to produce a more textured and durable surface finish. The product is also suitable for lighter coloured finishes.

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Super protection

Resistant to Acids, Bleaches, Bird droppings and Acid rain. Built in protection against UV for both the coating and the surface. Solvent resistant and 100% waterproof.

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Wide application range

Very low VOC, reducing environmental impact. Non-flammable material, suitable for indoor and outdoor applications.

The various finishes are achieved in 3 ways:

  1. Preparation of the metal. Raw, sand blasted, scrubbed or grinded.

  2. Length of time XL-08 is left to dwell. Usually, 1 day to 10 days.

  3. Coating depth.

 

  • The lighter finishes are achieved when the surface has been sand or shot blasted.

  • The more textured finishes are achieved when the surface has been roughed or grinded.

  • The longer the XL-08 is reactivated with a saline solution the deeper the oxidisation.

  • Or the longer it is left to naturally rust up to 6 months.

  • Thicker coating or additional coats will increase the gloss level if desired.

Image by Ilona Frey

Physical Effects

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Corten Steel Accelerator Corten Plus Corten +

Step 1

Corten / Weathering Steel sheet in original condition

Corten Steel Accelerator Corten Plus Corten +

Step 4

After XL-08

Corten Steel Accelerator Corten Plus Corten +

Step 2

XL-08 Applied

CT-7571-W coating applied (Wet)

Step 5

CT-7571-W coating applied (Wet)

Corten Steel Accelerator Corten Plus Corten +

Step 3

XL-08 Immediate reaction 1 minute

CT-7571-W coating dried and sealed

Step 6

CT-7571-W coating dried and sealed

Typical Data

Column
Info
Form
Liquid
Colour
White
pH-value at 20℃
8.5
Flash point
Not applicable. Non flammable.
Oxidising properties
Products is not self igniting.
Explosive properties
Products does not present an explosion hazard.
Relative density at 20℃
1.04g/cm³ (ISO 2811-1)
Viscosity at 23℃
300mPas (ISO 2555)
Hazardous decomposition products
No dangerous decomposition products known.
Corrosion/irritation
Not classified as skin irritant. Not classified as corrosive.
Serious eye damage/eye irritation
Not classified as irritating.
Environmental hazards. Marine pollutants
No
Suitable extinguishing agents
Water, foam, carbon dioxide.
Image by Scott Blake

Corten Steel Plus Protection & Boosted Beautify Solution

Preparation of iron based materials

Accelerating weathering with XL08        and ERW-BD

Finish weathering

Protecting finishes with CT-7571

Complete preparation

Or let our specialist team come to you

Image by Eepeng Cheong
CT-7571-W/T comparison
CT-7571-W/T comparison
CT-7571-W/T comparison

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F.A.Q.

How to treat Corten / weathering steel?

BROMOCO Corten steel/weathering steel solutions will effectively protect the steel. Helps prevent corrosion, deterioration and transitional weathering of the Corten steel/weathering steel substrate, while maintaining a good finish over time.

How long do Corten and weathering steels last?

Ideally, Corten steel or weathering steel will last for decades. Preparing and protecting Corten and weathering steels with BROMOCO solutions will significantly increase the service life of the substrate, ideally by decades. And the amount of maintenance required is significantly reduced throughout the protection cycle.

Does your product stop weathering steel from rusting?

Yes. Our CT-7571 Corten Steel and Weathering Steel Sealer stops weathering steel from rusting. When your Corten and weathering steel develops a satisfactory weathering layer (or if you simply want to stop it from rusting in the first place), you can apply CT-7571 to the substrate to stop it from continuing to rust. 

How long are your products guaranteed to work?

Authorized applications are guaranteed to be effective for at least 5 years, even in the harshest environments. Multiple projects have proven that CT-7571 continues to perform well after more than a decade of application.

How can I prevent my Corten / weathering steel from rusting or corroding outdoors?

We recommend you use CT-7571-W as a cost-effective way to stop rusting on Corten and weathering steel. In addition, stopping rust is just one feature of CT-7571-W; its ability to protect Corten and weathering steel from physical and chemical attack for up to 10+ years and provide perfect visual aesthetics.

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