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1.
An electric kitchen oven has a large space and multiple racks to hold or
suspend parts. It also has precise temperature control. A kitchen oven will
require more power that might not be available without installing a 240 volt
electrical system in the work area.
2.
A counter top oven or toaster oven has a smaller space, but is easier to
handle and only requires a 120 volt outlet. Ensure the oven can reach a
temperature of 400 °F (205 °C).
3.
Use an oven thermometer to ensure the oven's temperature is accurate.
4.
Large projects that cannot be fit into an oven can be cured using a free-
standing electric heater. Place the heater in front of the spot to be cured
and move it after 20 minutes to the next spot. Check the temperature
accuracy with a temperature gun.
5.
A heat gun can be used with large or unusually shaped project. This should
only be considered as a final option as you will have to hold the heat gun in
place for 20 minutes to obtain the correct cure.
6.
Once the time is up, turn off the power. Allow the parts to cool by opening
the oven door and leaving them in place. The coating's sheen may dull or
develop fine cracks if the part is allowed to cool too quickly.
a.
Keep the respirator on when you are around the cooling part as it may
continue to emit harmful fumes.
7.
Inspect the part once it is cool. If there are spots that were missed, you can
repeat the powder coating and curing process to fill in those spots.
TROUBLESHOOTING FINISH PROBLEMS
PITTED FINISH
The defect is concave in appearance. This can occur if a part was not properly
degreased during preparation. Clean the part again and ensure it is degreased.
CONTAMINATED FINISH
The cured finish appears to have grains of sand underneath it. This may result
from improper cleaning of the part or contamination in the paint powder. Clean
the part again. Filter the paint powder with a 400 micron filter or use a new
uncontaminated canister before reapplying the powder coating.
12
Air Powder Coating Machine
For technical questions call 1-800-665-8685
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