Powder Coating Brass Rails
Q. Can I apply a powder coating on brass handrails that will be installed indoors, or is there a better process to get an oil-rubbed finish on brass?—J.R.
A. You can apply powder on brass for indoor applications. Many door knobs and other brass hardware have a clear powder applied to get that high-gloss look and maintain a durable finish. As with any substrate material, the key is having the right cleaning and preparation process to get the look you want and still get good adhesion. Abrasion is a satisfactory method to prepare the surface. A light pressure blast will remove impurities and roughen the surface for adhesion. Sanding or abrading in some other way is also acceptable but may not be practical for production. Brass can also be cleaned with a mild cleaning solution or ultrasonic cleaning operation if that is practical. Treatments such as bright dipping are available for brass as well. Materials for this can be located from pretreatment suppliers or electroplating suppliers, both of which you can find at PFonline.com. Basically, the advice is the same for almost any metal substrate: make sure it is clean, make sure it is dry and make sure the coating will adhere.
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.
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.
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