What is causing this adhesion problem? Powder coatings are a very good finish for stainless steel if the process is designed and maintained properly. Adhesion of Powder Coating to Stainless Steel . precision powder coating is a shop that also does laser engraving, media blasting and customized stainless steel tumblers. 304 stainless steel is made up of low carbon and chromium-nickel content which makes it extremely versatile and widely used out of all the stainless steel options. The key is in the cleaning and metal pretreatment process that precedes the application of powder. We have had success on 304, and limited on 430 but no success on 316. Stainless steel; Mild steel; Galvanized steel; Electroplated steel; Steel alloys; Metals That Can’t Be Powder Coated. There is a certain procedure that can be applied to both stainless steel, as well as regular steel, that can help preserve the integrity of the metal. A high quality medium such as aluminum oxide will suffice. David Yarberry Q. Powder coating can also provide a final product that is highly resistant to most chemicals, brake fluid, acids and salt. Clearly, the type of stainless steel might also makes a difference, in that a #304 stainelss might give better adhesion than a #316 stainless. Some automotive parts are made using plastic or resin body fillers, which creates a problem for two reasons. All benefits of powder coating for stainless steel, carbon steel and aluminum materials deliver value for the consumer. Then depending on the cure temperature of the epoxy powder we may apply the coating directly to the steel (cure temperatures ~350 °F) or wash prime and prime the stainless steel then powder coat (cure temperatures ~250-275 °F). Does it have to do with surface tension, hardness, chemical compostion, etc of the metal? As for using special powders, any powder coating will work on stainless steel, once you prepare the surface. – Why Add Powder Coating to Stainless Steel. Overview Of Aluminum Powder Coating Steel And Stainless Installation Process . It helps in regards to LEED requirements and in addition, it meets AAMA specifications. Most of the powder paint suppliers should be able to provide some help on surface preparation. Powder paint coating can be as much as ten-times (10X) more durable than ordinary paint. The process you should consider for powder coating starts with sandblasting. Whether your outdoor kitchen needs marine grade (316) stainless steel depends on where you live. So select the powder coating that has the properties you need (see previous question). Before coating, the parts must be pretreated similarly to liquid coated parts. While most metals are good candidates for powdered painting, there are a few that pose a problem. A. Powder coating stainless steel is risky at best, and I would be very cautious. Designed to withstand extreme temperatures, powder-coating protects against rust and staining, making it a weather-resistant finish for our stainless steel and aluminum railings. If you’re looking for high quality powder coating, laser engraving or media blasting along with friendly customer service, you’ve come to the right place. Powder coating makes finished surfaces resistant to scratching, wearing, fading and chipping. What is stopping the adhesion of powder coatings to stainless steel? 304 Stainless Steel. The only differences are the coating properties. Powder-coated metal products won’t corrode or rust. They keep a like-new appearance throughout their normal life cycle. Powder coating provides a very durable finish and contains none of the toxic solvents or byproducts of liquid paints. Before coating, the parts must be pretreated similarly to liquid coated parts won ’ t powder! 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