Cor-ten (or corten as it is often called) is a group of steel alloys which were developed to surface oxidise, before the rusting process slows down dramatically.
It’s unique combination of alloys delivers a greater level of resistance to atmospheric weathering when compared to other unalloyed steels, and allows the screens to surface rust rapidly before the process slows down significantly. Because of this, screens will last for many, many years without rusting through.
The result is a natural patina which requires no further maintenance, and delivers extraordinary long term durability.
This makes these screens popular with commercial and civic projects, and a great addition to any backyards.
Please do not confuse corten for thin and flimsy, low grade, mild steel screens readily available in discount retailers. Thin, mild steel screens are essentially ‘disposable’ screens with a very limited usable life.
We only cut from high grade corten steel, 2.5 or 3mm thick (and therefore quite heavy), and will not use inferior grade materials.
Please note corten steel is a natural product and every screen rusts differently. There is a strong likelihood of bleeding at some time, so not necessarily the best choice on white walls and expensive tiles if it is exposed to the weather.
Sealers can be used to minimise bleed, but these can dull off the appearance of the screens, and will require periodic re-application.