Ask Joe Powder July/August 2018

Q: Hey Joe,
I am looking at a report that a major company just sent in. The steel parts are showing signs of rust after 24 hours and visible signs of rust after 48 hours in a 5% salt fog solution.

Somewhat new to this world of powder coating – how is this possible? Some holes and slots that have been punched out I can somewhat understand. But when I see aluminum wheels and outdoor items holding up season after season I would have thought the powder coating would hold up longer?

Is there a method of correlation between hours in a salt chamber and what this means to user conditions?
Thanks,
John D

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Ask Joe Powder

Each issue, we take the padlock off the PCI® Test-Lab door for a few minutes so our favorite technical editor and “powder guru” Joe Powder can run in the yard. When he’s not gnawing on a rawhide bone, he loves to answer readers’ questions. Go ahead and send him one at askjoepowder@yahoo.com... he doesn’t bite. Maybe it’ll end up in the next issue!

Posted in: Ask Joe, Tips & Tricks

26

Ask Joe Powder March-April 18

Each issue, we take the padlock off the PCI® Test-Lab door for a few minutes so our favorite technical editor and “powder guru” Joe Powder can run in the yard. When he’s not gnawing on a rawhide bone, he loves to answer readers’ questions. Go ahead and send him one at askjoepowder@yahoo.com... he doesn’t bite. Maybe it’ll end up in the next issue!

Posted in: Ask Joe, Tips & Tricks

29

Ask Joe Powder Jan-Feb 18

Each issue, we take the padlock off the PCI® Test-Lab door for a few minutes so our favorite technical editor and “powder guru” Joe Powder can run in the yard. When he’s not gnawing on a rawhide bone, he loves to answer readers’ questions. Go ahead and send him one at askjoepowder@yahoo.com... he doesn’t bite. Maybe it’ll end up in the next issue!

Posted in: Ask Joe, Tips & Tricks

27

Ask Joe Powder Nov-Dec 2017

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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03

Ask Joe Powder Sept-Oct 2017

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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24

Ask Joe Powder Sept/Oct 2017

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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Ask Joe Powder May/June 2017

It’s Snow Joke!

Question:

Dear Joe,

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

Posted in: Ask Joe, Tips & Tricks