The $20 Motorcycle Rim Powder Coat Oven

[joe_bob1999]

Those "space suits" are shiny for a reason...



"Luke...I AM your father!....."

[Banditperformance]

Originally Posted by joe_bob1999

I'm sure any insulation will help, but the key is the shiny surface of the sheet metal and foil...it really reflects the heat back in. With an infrared thermometer I could measure the surface temp while it was running. Except for where the heat gun was located the external temp would get to 110º to 140º. Actually the biggest issue I had was from contamination in the powder. I made the mistake spraying the first parts in the laundry room and the static charge the parts retain attracted a lot of lint and other stuff floating around the room. Now I use a plastic drop cloth to make a "clean" space to spray right next to where the oven is.

You will not get an accurate temp with a IR gun on alum foil Or any shiny surface for that matter. Different materials have different emissivity ratings. meaning, they give off different IR levels for a respecive temp. Flat black works the best for IR guns. Even different color powders will have different temp readings. Try coat a bunck of test panels different colors, then heat the oven to 200*. see what the gun says. IR guns are good, if your doing the same thing all the time.