Liquid Finishing Systems

Liquid finishing has been utilized for metal parts throughout the years. One huge reason why is that liquid coating can be applied in a variety of thicknesses, it costs less, color match is easier and it can be cured quickly. If you’d like to partake in these many benefits, Pneu Mech is here to help build a custom finishing system for your needs.

What is a Liquid Finishing System?

Liquid finishing systems are one of the most widespread approaches utilized for liquid coating applications. Liquid coating systems use a wet finishing process with the use of either automated or handheld equipment.

Due to liquid painting’s versatility and highly customizable nature, the demand for it has never wavered nor will decline in the foreseeable future. Liquid finishing is ideal for a multitude of protective, aesthetic, and production purposes.

What are the Applications for Liquid Finishing?

Liquid finishing has been utilized for metal, aluminum and plastic parts throughout the years. One huge reason why is that liquid coating can be applied in a variety of thicknesses, it costs less, and it can be cured quickly.

Liquid coatings are heavily employed in the case of sensitive materials like metal cylinders and large materials or parts that will not fit into ovens or are not easily moved. Its automotive finish is highly desirable for a lot of industries and manufacturers. Here are a few notable applications for liquid finishings:

Vehicles & Engine Components. There is no need to disassemble to body of a car or separate engine components for liquid finishing.

Aerospace & Military Equipment. Hardware used in aircraft or in the military must withstand intense climate and circumstances with durable liquid coating.

Industrial Finishing Systems icon

Health & Medical Technology. Medical devices must be professionally and properly coated for health compliance and safety.

Powder Coat Ovens icon & Pretreatment Powder Coating icon

Agricultural & Construction Hardware. Farming equipment and tools used for construction require a rust-free finish that protects it from grease.

Equipment Used in Liquid Finishing

Liquid coating may either be applied through a handheld or automated device. We use different equipment for every step of the process from mixing, feeding, application, and control. Choosing the right pump, manual or automatic air spray gun booth, mixing & dosing unit, and lastly, a controlling device is paramount to an effective industrial finishing system.



Pretreatment and cleaning are important because this is where we decontaminate the surface that we will be working on. Conversion coating is key for long-lasting painted materials. This process has been accomplished for a long time now using iron-phosphate or zinc. However, a phosphate-free technology has been making its rounds in the industry today and looks to be promising as well. As far as cleaning is concerned, aqueous cleaning is the most prominent approach amongst highly utilized practices. We also ensure to complete the process through proper rinsing before we move on.



Spray guns for liquid finishings utilize compressed air that’s highly pressurized. This makes it possible to propel liquid coating material that’s atomized into the surface that we will be working on. There are also low-pressure but high-volume spray guns that result in a more controlled application. Airless electrostatic-based spray guns have also made their way into the industry and are quite effective for metal workpieces.



Liquid coatings can air dry on the right applications. However, should we be required to cure it faster, then we may utilize ovens that heat up between 130-170 degrees F.

Advantages of Liquid Finishing Versus Powder Coating

Liquid finishing has been so popular and in-demand for some time now in industrial painting even against powder coating, here are a few reasons why:

A more versatile option and can be applied to a lot of different materials. This is due to liquid paint’s ability to bind in a lot of substrates and surfaces and that it can be applied in just about any level of coating desired.

Ability to Repair
Liquid coating has properties that will not only improve the aesthetic of a surface or material but at the same time protect and repair it.

UV Stability
Another huge plus for liquid coating is that it protects your surfaces effectively from moisture, UV rays, and chemicals.

Faster Color Change
Liquid coating enables color matching at the same time it protects the surface from corrosion, scratching, and chemical exposure.

Easier to Obtain Thin Film
We can apply liquid coating in any thickness level that works for any surface.

Liquids can be Mixed for Color Creation, so Color Variation is Better
Liquid paint can be easily manipulated and create the right hue that you want to achieve. The possibilities are endless.

Cost Effective
Liquid coating is a practical solution if the size and geometry of the parts of the material are posing to be a problem. It’s an inexpensive option since less coating is necessary.

Compatible With More Surfaces and Substrates
A huge reason for its versatility is that it can be applied to almost all substrates. It can also be applied with a powder coat or electrocoat.

Can be Low VOC for Safer Air Quality
Liquid finishing has also been proven to be environmentally friendly due to low VOC content. Any material finished with it can then be used in regulated areas.

Oven-less Curing is an Option
Liquid coating only requires to be air-dried with no complications whatsoever to its properties, so no oven is needed for curing. This is a possible solution for production levels that are low.


Solvent-borne coating is made up of organic compounds. It effectively protects the surface that it is applied to against corrosion. This type of coating is very resilient, especially in the curing stage. That property actually makes it an ideal choice when working in humid environments. Aside from being the better choice in harsher conditions, solvent-borne coating is also environmentally friendly when combined with the right abatement equipment. It’s in high demand for industrial equipment painting.



High-solids coating refers to the single or two-component finishing employed to yield higher concentrations of solid components such as binders, additives, and pigments than the usual coating without compromising quality. It also emits less solvent when curing so it’s also environmentally friendly.



Water-borne coating is getting a lot more popular these days due to the advances in this technology. This process simply uses water as its solvent for the dispersion of the resin needed for the coating. It’s quite easy to apply and also very environmentally friendly. It’s commonly applied in plastic, wood, automotive, concrete, and furniture. It’s very prevalent and often utilized side by side with other relevant industrial painting equipment.


Not Just Liquid Coating: Knowledge

We are designing, producing, and installing high quality customized turnkey liquid finishing solutions for surface finishing lines. Watch our video to walk through a completed system.

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Tailor-Made Liquid Coating Systems For Your Company

At Pneu Mech Systems MFG Inc., we work with companies to build a custom finishing system to suit their needs. We take into account the product material, product weight and size as well as corrosion protection needs, and what coating weatherability would best fit your products. Contact us today to find out more about how Pneu Mech can build the custom finishing system that’s right for you.