| 1 MINUTE READ

Powder Coating Q&A: Treatment for Stainless Steel

How do I pretreat stainless steel?

Share

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Q. I have a requirement for powder coating stainless steel grade 202 material and I want to know the process, especially the pretreatment process to prepare the surface for powder coating.

A. Stainless steel is chemically inert, so there is no perfect chemical treatment for adhesion of a powder coating. I suggest you media blast the surface to roughen it for a good mechanical bond. The media blast creates more surface and rough pattern that can be very effective. Application and curing are the same as any other metal substrate. Make sure the surface is free of dust, dirt and oil and be sure the part is connected to earth ground. Apply the appropriate layer of powder and cure according to the cycle recommended by the supplier of the powder. 

Originally published in the September 2015 issue.

RELATED CONTENT

  • Masking for Surface Finishing

    Masking is employed in most any metal finishing operation where only a specifically defined area of the surface of a part must be exposed to a process. Conversely, masking may be employed on a surface where treatment is either not required or must be avoided. This article covers the many aspects of masking for metal finishing, including applications, methods and the various types of masking employed.

  • Understanding Fluidized Bed Powder Coating

    For more than 50 years, fluidized beds have been used to coat parts with powder coatings. In this article, two industry experts tackle some common questions about the fluidized bed process…

  • Conveyors and Paint Systems

    Choosing the right conveyor system, coating technology, and ancillary equipment.