Metal Coating Process

The metal coating process is based on the need to protect metal parts and structures from damage by environmental conditions. Metals used for structural components, mechanisms, enclosures, etc. include steel, stainless steel, aluminum, and titanium, to name a few. These metals will oxidize (or corrode) when exposed to the environment; if their working life is to be extended, a “barrier” (or sacrificial) coating must be added as protection.

Factors to consider in selecting a coating include:

• How much physical and environmental stress will the coating have to endure?
• Is electrical conductivity needed after coating?
• How important is the cost effectiveness of the coating to the entire application?
• Will more processes be performed after the coating you are considering is applied?

Understanding your needs in detail will lead the way to determining the correct metal coating process. We have designed a quick questionnaire, based on the above factors, to help you determine what may be your best process options.

Widely used types of coating processes for metals include:

• Electroplating
• Electroless Plating
• Painting
• Powder Coating

Electroplating forms a coating by applying electrical current to a chemical solution containing the metal part. The resulting reaction causes the coating to form on the part.

Electroless Plating uses no electrical current in forming the coating. A chemical reaction between the solution and the surface of the part forms the coating.

Painting encompasses many different forms based on endurance, color, and protection level required. Paint systems for the military can even be chemical agent resistant (CARC) for added protection for our forces.

Powder coating is available in a large selection of colors and offers excellent corrosion protection.

H&W Global Industries will work with you to determine the best metal coating process for your product. Contact us today via our contact form or call 724.465.6177.