Powder Coating Q&A: Pretreatment for Stainless Steel
What is the requirement for coating stainless steel?
Q. I am working for ELGI Ultra Industries Ltd. as the vendor development manager. I have a requirement for powder coating SS 202 (stainless steel) material and I want to know the process, especially the pretreatment.
A. Stainless steel is chemically inert so there is no good chemical treatment for adhesion of a powder. I suggest you media blast the surface to roughen it for a good mechanical bond. Just be careful not to blast too aggressively and leave the surface too rough in appearance. Application should be the same as any other substrate. With a roughened surface you will need to apply enough film to adequately cover any peaks on the surface.
Originally published in the December 2015 issue.
Related Content
-
Calculating the Cost of Powder Coating
How can you calculate the cost of powder coating a component if you only know its surface area? Powder coating expert Rodger Talbert has the answer.
-
Selecting the Right Outdoor-Durable Powder Coating
The powder coating industry offers an array of chemistries to provide an excellent match to the manufacturer’s expectations for outdoor durability.
-
Conveyors and Paint Systems
Choosing the right conveyor system, coating technology, and ancillary equipment.
