Is it possible to paint a galvanised storage container?
We understand that, especially in a domestic setting, a shiny galvanised finish may not suit everyone. 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 it’s 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.
The 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 allow any paint to peel off after a few months. But with the correct surface preparation it is possible to successfully paint your container. After the finish has weathered for 12 months the options are a bit easier. For a new container there are 2 options that have proved to have worked on new galvanised finishes. There are also different paint and coating manufactures bringing new products to the market for both professional and DIY application.
What Are My Options?
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 de-greasin agent. A good traffic film remover, known as TFR, applied with a pressure washer is effective. Rinse and allow to dry.
Then apply the paint with a brush or roller.
There are also coloured Zinc spray paints available which will give a good DIY finish.
Treat the surface with ‘Mordant Solution’, also known as ‘T Wash’.
T-Wash acidic solution is a pre-treatment for clean zinc-coated galvanised finishes. The solution turns the galvanised silver colour to 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 topcoat in the colour of your choice.
Always follow the manufacturers’ instructions and wear the correct PPE