Q Joe, I work for an overhead doors company and we powder coat the extruded aluminum rails for our full-view doors. We have had issues in the p...

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Q Dear Joe, Waterjet metal cutting uses silica sand (silicon dioxide SiO2). Will this type of silicon cause adhesion problems and fish eyes? I ha...

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In a Haze Question: Howdy Joe, I am sorry if this email might cause you any inconvenience. At present, we are dealing with a finished powder coat...

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It’s Snow Joke!

Question:

Dear Joe,

One of my customers in Thailand is facing an unknown problem when they use the polyester product.

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Q: Hi Joe,
I was researching online and came across one of your articles from 2014, titled “Don’t Blame the Powder”. I am from Adelaide, South Australia, and was wondering if you can help me.

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Tips for Temp Tracking Tools Q: Dear Joe, I work as a sale (service) guy for powder coating equipment in Serbia. A customer asked me for a measu...

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I work for a powder manufacturer and have
a question about PSD (particle size distribution)
and our particle size analyzer. My first
question is what causes fines and how do we fix
it? My second question is on our particle size
analyzer. We have the air pressure to 1500 mb.
Is that a high number and will it cause to break
our particles and create more fines?

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Q: Very recently I graduated in Materials Engineering and I am naive about coating issues. Is there any handbook (available online) to follow to improve my knowledge on this?
Mugni, Bangladesh Univ. of Eng. and Tech.

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My column is meant to be informative, hopefully a little entertaining, and occasionally provocative. You, the readers, are a bright bunch of people and I always appreciate your input and feedback. In the September/October issue I offered my perspective on galvanizing plus topcoat vs. zinc primer/topcoat. I was heartened to receive a very cogent reply from a gentleman who faces this issue on a daily basis. His analysis is excellent and hence I am sharing it with you.

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It’s Allison from Boise. So we have been doing some experimenting since the last PCI meeting. Rob has powder coated his leather boots and wood handles on our wheelbarrow. That all being said, I had a customer inquiring on powder coating a porcelain toilet PINK. Is that possible? Pre heat and shoot hot? Or just stay away from the test altogether? Thanks for your insight!

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