Rodger Talbert Columnist
Powder Coating Clinic: Sanding for Repair
Q. We sand aluminum die-cast parts that have minor defects in the powder coating before recoating them. The small areas of dirt, metal blemishes, fibers or similar particles are sanded using 120-grit sandpaper on an orbital sander. After recoating the parts, we often find more little specks and other defects and lines from the sanding disk in the coating. My question is, does this happen because of the sandpaper we are using, or because we sand all the way to the aluminum, exposing the surface and causing it to outgas?
Read MorePowder Clinic: Fillers for Powder Coating
How do you choose the right filler for your powder coating process?
Read MorePowder Clinic: Powder Coating Small Parts
Parts vary in size and shape, making it difficult to find "the best" process for painting small pieces.
Read MorePowder Clinic: Powder Versus Galvanizing
Powder Coating or Galvanizing: Which offers the best long-term protection from corrosion?
Read MorePowder Clinic: Batch Cure Oven Noise Issue
What is that Noise from My Oven? Expert Rodger Talbert explains that it is difficult to be sure at all without seeing the oven and hearing the noise. However, he thinks it may be related to the pressure settings on the gas train.
Read MorePowder Clinic: Why Not to Convert Liquid Paint Booth to Powder
Can I Convert a Liquid Paint Booth to a Powder Booth?
Read MorePowder Clinic: Pinholes Mentioned in July Issue
Q. Just read the article in most recent issue of PF about our problem and wanted to respond with what we found out.
Read MorePowder Clinic: Is Blasting Enough for Preparation?
Q. I am looking into making the switch from liquid to powder coating. I have an experienced powder coater who says all my aluminum and steel parts need is to be blasted, and that should be good enough. But I am finding mixed reviews online. So is there any truth to it? Can I simply sand blast my parts and go straight into finishing them?
Read MorePowder Clinic: Adhesion of Powder to Brass
Q. I’ve heard from a few vendors that brass presents challenges with adhesion, whereas steel and aluminum do not. What is the reason for this?
Read MorePowder Clinic: Outdoor Durable Powder
Q. We have a large job that requires protection from sunlight. What kind of powder we should use?
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Powder Coating Q&A: Micro-Porosity in Cured Coating
When our parts are inspected, there seem to be thousands of very small pin pricks.
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Powder Coating Q&A: Requirements for Breathing PPE in a Powder Operation
What kind of breathing protection is required for compliance with health and safety standards?
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