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knifemaker3

Problems with hook eyes plugging up.....

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Hey all,

I finally got my fluid bed up and running good using brown paper filters.

Painted some jigs today. Made sure the eyes were clean before putting them in for the 15 minute @ 350 degree cure.

The eyes on about 2/3rds of the jigs came out plugged :angry: The paint flowed the eyes shut.

Never had this problem when just dipping in the paint. Any suggestions? Any ideas on how to go ahead and open the eyes that are now cured shut?

Thanks

Craig

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Get a nail or a pin tip real hot and push it through.

Sounds like you are still getting too much paint on your jig. Sagging (during the curing) usually occurs when you have too much paint or the temperature/cure time is not correct.

You might want to turn your heat down and extend your cure time. You can not trust your temperature control on your curing device.

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395º for Pro Tec is really excessive. Columbia Coating usually cures hotter than PT but I don’t remember it being that high..

A real problem with the toaster ovens besides control is how the unit monitors its temperature, which relates back to control. The thermostat will help you but it is only as good as the sensing element.

I use a thermocouple wire (type T) and place it in the center of the chamber and manually control (turn the set point up and down). TC readers are kind of expensive but a lot more accurate and really easy to use. The oven I have been using has about a 12º swing.

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I have a listing on my website that lists all of Pro-Tecs powder paint curing times by color. I still have to get the new colors that they came out with up there, but you should be able to judge it by similiar color. Here is the link:

http://tjstackle.com/FluidBedProcess.htm

I too stongly suggest getting an oven thermometer. My toaster oven is off by about 50 degrees.

Thanks,

Benjamin

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