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Corten Steel, also known as weathering steel, is a special steel originally developed for bridge building and skyscraper construction due to its incredible strength. It develops a protective, striking rust appearance on exposure to the weather, creating warm rich textures not always associated with metal. Due to the chemical composition of Corten Steel, a very dense oxidisation layer is formed during the weathering process which protects the blue steel inside. If this protective barrier is compromised, it will simply form a new skin to protect itself. Corten Steel is extremely durable and has a far higher resistance to atmospheric corrosion than other steels.
When you first receive your Corten Steel products they will arrive in an un-weathered or partly weathered condition. Once placed outside the weathering process will begin. This can take some time; Corten Steel has a reactive patina period of between 3 and 9 months depending on location and climate. The patina or rust acts as a protective barrier - it will not penetrate or compromise the structural integrity of the material. The colouration of each item will vary as the weathering process takes place, eventually producing a rusty brown patina.
During the weathering process the Corten Steel produces carbon run off or staining to adjacent materials such as stone or concrete. To reduce this possible staining, some Corten Steel products are supplied with small feet or a stand, lifting the product and preventing direct contact with the flooring material. After the initial reactive period Corten Steel will cure and self-seal with little to no carbon run off. The weathering process of Corten Steel is integral to this product and as such we will not accept any responsibility for damage caused to surrounding materials as a result of carbon run off from Corten Steel products. Please ensure you do not place your product on any surface that may be damaged during the weathering process.