Is it possible to paint a galvanised storage container?

Is it possible to paint a galvanised storage container?

We understand that a shiny galvanised finish may not suit everyone, especially in a domestic setting. But galvanised steel is very hard wearing and offers excellent corrosion protection, ensuring a long life, lasting decades.  

We do not offer a painting service or colour options for our containers, but it is possible to paint your container when assembled or before assembly.


What is Galvanising

Galvanising is the process of protecting the steel by applying a zinc coating. This zinc coating protects the containers in all weathers from the effects of rust and corrosion. The only reason to paint a galvanised container is to change the colour. It is not necessary to apply paint to provide any additional corrosion protection in a typical environment.

Painted galvanised storage containerPainted Kovobel ContainerThe galvanised finish of our containers is smooth and shiny when new. This makes it difficult for standard paint to stick and adhere to the surface. The manufacturing process leaves a slight oily residue that will let any paint peel off after a few months. But with the correct surface preparation, it is possible to paint your container successfully. After the finish has been weathered for 12 months, the options are a bit easier. For a new container, two options have proved to have worked on new galvanised finishes. Different paint and coating manufacturers are also bringing new products to the market for both professional and DIY applications.

What are the options for painting a container?

Direct to Galvanised Paint to ContainersOption 1.

Use a "Direct to galvanised paint". Follow the manufactures instructions, as this will differ between brands. This usually includes cleaning all surfaces with soap or a de-greasing agent. A good traffic film remover, known as TFR, applied with a pressure washer is effective. Allow to dry, and apply with a brush or roller. There are also coloured Zinc spray paints available which will give an excellent DIY finish.

Option 2.  Morden T Wash galvanised Preparation for painting

Treat the galvanised surface with 'Mordant Solution', also known as 'T Wash'. This acidic solution is a pre-treatment for clean zinc coated galvanised finishes. This turns the galvanised silver colour into a black finish. The acid etches the top layer neutralising the salts created by the zinc. Then apply a primer to the steel followed by a top coat in the colour of your choice.

Of course, there are other options clients have used to change the appearance of the container. These include

  • Wood cladding
  • Camo nets
  • Stickers
  • Plastic boards
  • Exterior plywood
  • The list is endless, and we've seen some interesting methods of making your Kovobel container look completely different!