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Is Your Garden Furniture Eco-friendly? The Benefits of Water-based Coatings for Corten Steel Planters

Corten steel planters are a popular choice among gardeners and landscapers for their unique rustic, weathered look and superior durability. However, while these planters can enhance the stylistic beauty of a garden, they can also pose a degree of maintenance challenges and even lead to environmental hazards. The main issues are the use of traditional solvent-based paints and runoff pollution. To address these issues, BROMOCO's Corten steel range of full-process, eco-friendly, water-based products offers a convincing solution.


Disadvantages of traditional coatings and paints

It is common to apply sealants such as varnish, lacquer or certain solvent-based products to Corten steel planters. These products contain high levels of volatile organic compounds (VOCs) that can cause serious air pollution. When VOCs are released into the atmosphere, they form ground-level ozone and particulate matter, both of which pose serious health risks, including respiratory problems and other long-term health issues.


In addition, varnishes and lacquers or similar products are simply not effective in protecting surfaces or preventing rust loss from Corten steel planters. Not only do they fail to create protection for Corten steel's groove-filled microscopic surfaces, they even adhere firmly to Corten steel surfaces, creating large, hard-to-remove patches in a very short period of time. Rain and dew will wash away the unprotected layer of rust with the surface, and the rust is lost with water runoff causing staining of the ground and negatively affecting soil and plant health. In addition, rust can leave unsightly stains and rust scum on garden paths, decks and other outdoor surfaces, reducing the visual appeal of your garden space.

Corten Steel Water Stream Staining
Graphic: Corten steel staining in laboratory simulations and real-life scenarios

Benefits of water-based coatings for Corten steel planters


Environmentally Responsible

BROMOCO's CT-7571-W water-based coating offers significant improvements over traditional solvent-based coatings. One of its main advantages is the reduction of VOC emissions. By minimising the release of harmful chemicals into the air, this eco-friendly coating helps to improve air quality for the benefit of the environment and public health. For those who use Corten steel planters indoors or in semi-enclosed garden spaces, the reduction of VOCs in the coated product also means a safer, less toxic spatial environment.


Grounding Protection

Another important benefit of using a water-based coating such as CT-7571-W is its ability to effectively seal Corten steel. This sealer prevents rust loss, a common problem with untreated or inadequately coated planters. By preventing this loss, water-based coatings help keep garden spaces clean and beautiful. Gardeners no longer need to worry about rust on paving stones or stained floor tiles around planters, making maintenance easier and the garden more visually appealing.


Enhanced durability

The durability of water-based coatings is another important reason that drives people to choose them, and BROMOCO's CT-7571-W provides a strong protective layer against inclement weather to maintain the visual aesthetics of Corten steel planters and extend their life. This increased durability means planters don't require frequent maintenance and replacement, providing long-term cost benefits for gardeners and landscapers. By investing in a high-quality, environmentally friendly coating, users can enjoy beautiful garden landscaping for nearly 10 years to come without worrying about rust and deterioration.

corten steel coating
Comparison: Corten steel with varnish application and CT-7571-W water-based coating application

At the End

Treating Corten steel planters with BROMOCO's CT-7571-W water-based coating is a practical and eco-friendly option. This advanced coating not only protects the planter and surrounding area from rust and contamination, but also supports a healthier planet by reducing VOC emissions. By addressing the specific environmental and maintenance issues associated with traditional paints, this water-based solution makes your garden furniture truly eco-friendly.


Choosing eco-friendly products for your garden can make a big impact. By focusing on solutions such as water-based coatings, you can contribute to a cleaner, healthier environment while enjoying the enhanced durability and aesthetics of your garden furniture. Embrace change and make your garden space more sustainable and aesthetically pleasing with eco-friendly coatings.



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BROMOCO Corten steel full process eco-friendly water-based solutions are now available. Use Corten steel in a more efficient and responsible way.

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