Wet Paint vs Powder Coating; in some circles, it's a heated debate!
In this article, we'll demystify the advantages and disadvantages of both coating solutions so you can make an informed decision on which route to go with your project.
Let's address the question straight away - what is better?
Well, neither wet paint nor powder coating is inherently better than the other. Choosing whether to use a wet paint or powder coating solution really depends on the intended application of the product and your desired outcome.
We have listed the advantages and disadvantages of powder coating and wet paint below to help you determine which solution is best for your project.
Powder Coating:
Powder Coating is a method of applying a layer of electrostatic-charged dry coloured powder to a metal surface which is then cured with heat to form a durable hard finish.
Powder Coating Advantages:
Tough and Durable.
Powder coatings have higher scratch and flake resistance than wet paint. Powder coating will last longer and require far fewer coats and re-coats than wet paint.Low Maintenance.
Powder coating is a low maintenance coating. Surfaces only need a quick clean once every 3-12 months depending on the environmental conditions.Fast Application and Curing Process.
Powder coatings can be sandblasted, coated with zinc-primer and a topcoat, and completely dry in less than a single day.Cost Efficient.
As powder coating is a fast process, it is much more cost-efficient than painting, especially for larger quantities. Products don’t require special drying areas that take 2-3 days to completely dry.Environmentally Friendly.
Powder coatings are more environmentally friendly than wet paint solutions as the process requires fewer hazardous materials.Better Colour Retention.
The sun wears down pigments in paints and powder coatings alike. However, it will take far longer to wear down powder coating pigments.
Powder Coating Disadvantages:
Requires Special Equipment.
Powder coating requires specialised equipment that isn’t transportable and must be done on-site. Wet painting is much more flexible.Higher Upfront Costs.
Powder coating generally costs more than wet painting upfront. However, the durability of powder coating means it costs less in the long run as surfaces last longer and doesn’t require as much maintenance.Material Limits.
Powder coating can only be applied to materials that can hold an electrostatic charge. Wet painting can be applied to more surfaces such as wood as the method doesn’t require an electrostatic charge.
Wet Paint:
Wet paint is the traditional painting method that includes any painted on or sprayed on coatings.
Wet Paint Advantages:
Simple and Easy to Apply.
Wet painting is simple and easy to apply. All that is required is sandpaper, paint, and a paintbrush.
Application On-Site.
Wet paint can be applied on-site provided the weather is suitable. Wet painting doesn’t require the object to be removed and transported to a powder coating facility.
Multiple Colours.
It is very easy to apply different colours to the same object with wet painting. Powder coating requires a full clean on the spray gun and booth to avoid colour contamination.
Wet Paint Disadvantages:
Longer Drying Time.
Each coat of wet paint can take between 2-3 days to dry depending on the weather. Powder coatings are dry and suitable for installation within an hour of curing.
Less Durable.
Wet paint is less durable and offers less resistance to chipping, scratching, and flaking. Therefore, it requires more maintenance and re-coating.
Harder to Apply.
As wet paint takes longer to dry, it is more prone to drip, streak, and experience dust contamination.
Less Environmentally Sustainable.
Wet paint solutions require chemical agents to spray, bond and accelerate paints to surfaces. Powder coatings stick through an electrostatic reaction and an elevated temperature to cure.
What is Best for your Project; Wet Paint or Powder Coat?
With the advantages and disadvantages of both painting methods in mind, it is time to weigh up the options according to your project requirements.
Here are some questions to help you in your decision:
What is the most important factor to your project? Durability? Speed?
What is the most cost-efficient solution?
How much maintenance are you willing to do?
Powder coating is generally preferred for any objects that are exposed to extreme wear and tear through environmental factors, such as fencing and gates, or preferred for heavy-duty equipment such as tractor harrows.
Wet paints may be more suitable to apply to objects that are fixed in place, or can’t be heated in a powder coating oven.
If you are unsure whether a powder coating or wet painting solution is best for your project, please contact our team or leave a comment.