Powdercoating is a paint technique. Instead of spraying the liquid paint on a surface, and let it cure. A powder is sprayed over a surface and baked the cure. Powdercoating is very popular for coating wheels with paint.
A powdercoat is different to the common way to spraypaint a surface when working with vehicles. Spraypaint consists out of coloring agents, carriers, polymers and some solvents if not waterbased. This requires the liquid paint to be sprayed over a surface, and left to cure. Sometimes under a heatsource. Powdercoating is often done to paint wheels, given the strength by powdercoating. It is also easier to cover small holes and tight corners to create a more evenly covered finish. Powdercoating also has certain downsides which makes it not very suitable for painted entire body panels.
How powdercoating is done
Powdercoating consists out of a thermoplastic or a thermoset polymer with a coloring agent, this powder is given an electric charge while spraying. The object is given a negative charge, causing the powdercoat to be attracted to the surface. After the object is covered, it is put inside an oven where an indirect heatsource causes the ceramic powder to melt and fuse together, bonding with the surface underneath. After cooling it turns into a very hard surface, covering the object.
Benefits of powdercoat
Apart from a different way of application, it has certain benefits that make it very suitable for specific goals.
- Powdercoats are very hard, harder then regular automotive paint
- Powdercoats can withstand various amounts of acidic and alkaline liquids
- It is easier to evenly cover an uneven surface, or and object with small crevices and sharp lines
- Powdercoats don’t require a transparent clear coat
- Oxidation and corrosion is much less an issue with powdercoat
- Powdercoating don’t contain any solvents (making it VOC compliant)
- Powdercoatings are generally thicker then normal paint
- Many different paint effect (like chromatic, fluorescent etc) are much easier to achieve then with regular paint
Downsides of powdercoat
Although powdercoating offers certain specific properties, it can also have certain downsides that make it not suitable for use on particular objects or in certain situations.
- Powdercoating is not easily fixed when it is chipped or severly damaged
- Powdercoats require more effort to correct, polishing wheels is often more labour intesive then body panels
- It requires an oven, which means the object needs to be able to withstand high temperatures for prolonged time
- Powdercoats suffer from more orange peel then regular paintwork
- It can be more expensive to do, depending on quantity, size and preperation
- Removing powdercoat requires a very labor intensive process, or a heavy chemically process
- Sonax is a manufacturer of detailing products and is owned by Hoffman Group. Sonax is probably most known for their polish and/or wax products....
- The pencil scale is a test of hardness that gives an impression on how hard a certain coating is. The test is done by pressing a pencil with a certain hardness firmly on the surface on a 45 degrees angle. The highest grade that does not make permantently mark the surface is the score for the pencil scale....
- It is often asked on detailing fora and social media: "what is the best pressure washer". Off course there is a difference between certain products and brands, but it is important to know what you are asking. In this guide I will try to explain what the problem is with this question unless it is asked more in-depth....
- There might be certain situation in which it is advised to not polish a certain surface. This can be due to damage, time limit, thin surface or other factors. Knowing when not to polish might be as important as knowing when to polish....
- IPA stands for IsoPropyl Alcohol, and is a chemical compound often used in the world of detailing to remove polish residue. The liquid is colorless with a strong odor. Caution is required for this liquid is very highly flammable!...
- Work Stuff is one of a few Polish manufacturers of detailing equipment. The brand originates from Poland and has ditributors and reseller accross Europe. The company focusses mostly towards equipment, accessories and towel. The brand is often recognized because of their destincive yellow color....