Powder Coating Or Liquid Paint For Automotive Applications?

As powder coating suppliers we know that surface finishing is vital when using reactive metals. Such as ductile iron or carbon steel. If left without a protective surface coating, the iron in these metals can react with oxygen and form rust. Rust can have a huge negative impact on the safety and performance of a piece of machinery. This is especially the case when it comes to cars and other automobiles. Colourful exteriors are not just for decorative purposes, they serve as functional barriers against corrosion and can enhance the lifespan of a vehicle. Metal parts for the cars can be finished with either vehicle powder coating or wet paint, and whilst both types of paint have a similar function, each coating has its own set of advantages and disadvantages.

Application Process

Although one is liquid and the other is solid, the industrial application for these automotive paints are similar. Pretreatments have the same processes in which the surface undergoes thorough cleaning. Ensuring the removal of oils, dirt, and any other contaminants, so that they do not impact surface adhesion. However, applying the paints themselves is when the processes begin to differ.

The vehicle coating process involves shooting dry powder through an electrostatic gun onto the metal parts. The negative attraction from the gun and the powder creates a fast and even application. Once the coating has been applied to the desired thickness, the parts are placed in a curing oven. The curing process creates thermal bonds which as a result ensures a smooth and hard finish.

Liquid paint is applied through a fine spray which is also electrostatically charged. However, whilst powder coating can create uniform coverage with ease, the same standard of coverage is harder to achieve. This is because it relies on highly trained professionals to avoid drips and uneven coatings. Both powder and liquid coating often have a primer and a colour, however, liquid paint may also require multiple coats alongside a clear topcoat too.

Colour Matching

Powder coating has many different advantages but when it comes to colour matching, liquid paint is often the winner. Custom colours can be mixed on-site by almost any point supplier. Whereas, powder coat colours require a specialist production run as the colours are determined by the plastics which have been ground down. In addition, as there is no solvent in powder coating, it’s harder to colour match. Therefore, the production of standard colours are usually in large batches.


The key to a good performance is a flawless finish on your metal surface, which is why when it comes to automotive coatings, powder coating is almost always the most effective. Powder coating provides much better performance in comparison to wet paint. This is because it is more resistant to chipping, scratching, and other general wear and tear due to the thermal bonding that takes place during the curing process. Additionally, the fact that powder coating can be applied in much thicker layers.

Overall powder coating is one of the most proactive finishes for a car. It provides an excellent finish and is highly durable, and in fact, can be most cost-effective. Here at RM, we can ensure that your automobile is provided with a consistent finish that can truly enhance the restoration of your vehicle.

Automotive Powder Coatings Suppliers

To find out more about our Tier 1 West Midlands automotive powder coating services, head to our website today. Alternatively, you can call 01384266022 to speak to a member of our helpful and friendly team.

If you have found this blog helpful, you may wish to read our previous blogs on Commercial Coating Services and What is ‘A’ Class Powder Coating and Commercial.


Cookie Control

Cookie control

We have placed cookies on your device to help make this website better.

I'm fine with this

We use cookies to give you the best online experience.

Please let us know if you agree to all of these cookies.

Some of the cookies we use are essential for the site to work.

We also use some non-essential cookies to collect information for making reports and to help us improve the site. The cookies collect information in an anonymous form.

To control third party cookies, you can also adjust your browser settings.

I'm fine with this
(One cookie will be set to store your preference)
(Ticking this sets a cookie to hide this popup if you then hit close. This will not store any personal information)
Information and Settings Cookie policy