Material & care

Everything you need to know about our surfaces, how they develop and how to care for them.

Edge of a Corten steel planter with box and gravel, a pool behind it – the patina in close-up
Corten steel

A surface that protects itself

Corten steel is a weathering structural steel. Exposure to the weather forms a barrier layer on its surface. It protects the material from further corrosion and creates the typical patina in warm, earthy tones. Corten steel needs no paint and is recyclable.

ODCUBE uses Corten A steel. The name stands for corrosion resistance and tensile strength.

Patina

How the patina forms.

1

On delivery

The objects are usually only lightly rusted. We start the rusting process right after shaping, using our own method.

2

After two to three weeks

The typical rust patina develops. A good protective layer needs alternating dry and wet weather.

3

After two to three years

The process is usually complete.

Location & notes

What to look out for.

Colour

Cold and high humidity can darken the surface. Differences in colour even out over time.

Discolouration when air is excluded

Without air – for example in airtight packaging or under protective film – a young surface can turn black. After a few weeks outdoors, the rust colour usually returns by itself.

Location

Water can wash off rust particles and stain neighbouring surfaces such as natural stone. Bear this in mind when choosing the location.

Raised beds and slugs

In Corten steel raised beds, the copper content of about 1 % reacts with slug slime. In most cases this stops slugs.

Tall and cube-shaped Corten steel planters with topiary at the edge of a pool
Care

Cleaning Corten steel

  • CleanRemove light dirt and rust deposits with soap, water and a soft cloth.
  • AvoidDo not use acidic cleaners: they break down the patina and exclude warranty claims.
  • TestTest every cleaning product on a small area first.
Coated steel

Galvanised and powder-coated

  • Base2 mm steel sheets, electro-galvanised inside and out
  • CoatingFine epoxy powder coating, applied in a three-stage process, without solvents
  • ProtectionAgainst corrosion and scratches, weather-resistant
  • ColoursAvailable in all RAL colours
  • Suitable forIndoors and outdoors
Anthracite-coated planter with bamboo on a terrace