What's the best way to bake on paint?
#1
Drifting
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What's the best way to bake on paint on metal parts?
I have put metal parts in the oven to bake on the paint before, and it worked well. But it has been many years, and I guessed back then as how to do it. What do you guys recommend as for temp. and time. Believe it or not, my wife doesn't mind me using her oven. lEt me know your tips.
[Modified by vethead, 1:44 PM 6/29/2004]
[Modified by vethead, 1:44 PM 6/29/2004]
#2
Melting Slicks
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Re: What's the best way to bake on paint on metal parts? (vethead)
Well, it depends on the type of paints. Our enamels bake for 30 minutes at 130 degrees. Urethanes bake at 130 deg as well but time varies from 15 min to an hour depending on activator.
#3
Re: What's the best way to bake on paint on metal parts? (vethead)
I use the oven as well. It stinks the house out but the finish comes out well edit: cooking times & temps! For urethane engine enamel (Sperex) I found that it depends on how much paint there is on the part, the size of the part & how long it's been air drying for. For a set of cylinder barrels (twin cylinder, cast iron) I've usually got the paint on really thick ( 1 1/2 rattle cans worth) & have had it air drying overnight. If it still feels slightly soft, or smells strong, I start off at the lowest temp the oven will do & leave it for about 1/2 hour. Then I ramp it up to 150 & give it another 1/2 hour. For parts that are small with a "normal" amount of paint on, I just give them 45mins at 150. As long as it cures it'll be OK, except for parts that'll get hot. If you bake it at a lower temp then it'll see in service then it could start curing in use & pick up dust, dirt, insects, etc & set looking awful (discovered this with the 1st set of cylinders I used engine enamel on ). Just make sure that it is baked at a higher temp than it'll be used at (I tried some test pieces to find the temp at which the paint burnt/peeled, which was about 190). Judging by the way pizzas come out, my oven temp settings are a bit vague
For larger parts I used to take them to my friendly powdercoaters & they'd bake them for me. Just cost me a couple of beers each time. Unfortunately, they are no longer in business, so I'm not painting any large parts for a while (the way roadside Kebab stands cook Doner kebabs looks very similar to the method used to bake powdercoat on. I wonder....).
[Modified by UKPaul, 7:11 AM 6/30/2004]
For larger parts I used to take them to my friendly powdercoaters & they'd bake them for me. Just cost me a couple of beers each time. Unfortunately, they are no longer in business, so I'm not painting any large parts for a while (the way roadside Kebab stands cook Doner kebabs looks very similar to the method used to bake powdercoat on. I wonder....).
[Modified by UKPaul, 7:11 AM 6/30/2004]