Powder coating is a very popular technique used on metal and other materials to provide colour and durability. Over time you may wish to change the colour of an object that has been previously powder-coated.
Can you paint over powder coating and what is the process for doing so?
Is it okay to paint over a powder coat?
Painting over powder coating is certainly possible, but there are some important aspects of
the process that you will need to consider. Powder coating is popular due to its extended
durability and excellent adhesion. This means that painting over powder coat directly can
present some challenges. Ensuring a successful outcome requires proper preparation and the
right selection of paint.
What kind of paint will stick to powder coating?
To ensure you achieve the best results it’s important to select the right paint when painting over
powder coat. While oil-based and acrylic paints will generally adhere to powder-coated
surfaces, epoxy-based paints are generally considered the best choice. Not only do they have
strong adhesion properties but they are also resistant to chipping and peeling.
The paint should also be compatible with the material you are painting. If you’re painting a
powder-coated metal surface you should use paint that has been specially formulated for metal.
Do you need a primer to paint over a powder coating?
It’s not always essential to use a primer when painting over powder coating but it can
significantly improve the adhesion of the paint as well as the durability of the finished coat.
Primers create a smooth but porous surface that the paint is able to grip onto. This enhances
the bond with the powder-coated surface below.
How do you paint over a powder-coated surface?
Here are the steps to take when painting over a powder-coated surface:
●Prepare the surface
The powder-coated surface should be cleaned thoroughly. Remove any dirt, grease or other
contaminants that inhibit the paint’s adhesion. Using sandpaper to roughen the surface slightly
can help the primer to adhere more successfully.
●Apply the primer
A high-quality epoxy or acrylic-based primer can then be applied to the surface of the material.
Follow the manufacturer’s instructions for application techniques and expected drying times.
●Painting
Once the primer is dry you can then proceed with painting the surface with your chosen paint.
The paint should be applied evenly using smooth strokes. Allow each coat to dry between
applications. After the final coat of paint has fully dried you may wish to apply a clear topcoat for
added protection, particularly if the painted surface is exposed to outdoor conditions.
Powder coating from Pershore Dip Coating
Based in Worcestershire, we provide powder coating for a wide range of industries such as manufacturing, construction, and automotive.
Our powder coating service is suitable for a variety of applications including household appliances, bicycle frames, vehicles, wheels and more.
Contact us to discuss your requirements.
