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Question for the powdercoaters


alexideways

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I was wondering, how hot must the oven be to cure PowderCoating???

 

I'm asking cause, I have this weird fantasy of having my whole car powdercoated, but the only guy I found who had an oven big enough to fit my car in, ended having the oven doors 4 1/2" to narrow to fit the car.

 

:?: My main question here is, can I cure powdercoating with high heat lamps like a high pressure sodium or metal hallide (H.I.D) lamp???

 

Thanks.

Alex.

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Guest TeamNissan

I'm pretty sure You prebake (if you choose to) at about 475-500 degrees then bake the powder at 425 for 8-10min then 350 for another 15-20min. Thats the method I used when I had my shop. I dont think using lamps would work even if you could reach those temps because it would be just about impossible to have the same temp for the same time through out the entire surface of the car. Even if you dont just bake one spot at a time and had enough lights to completely surround the car the consistancy would still be off. A oven completely surrounds the part being baked with a constant radient surface heat.

 

Hope that helps Alex.

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Guest TeamNissan

Well I mean if your serious about it there are people out there with ovens big enough to fit a mac truck in them lol. Just do some searching and I'm sure you will be able to find one....

 

I'd really love to see a 100% powder coated car too.

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When I do plastics, I cure at 350 for a longer period of time. I wouldn't go any lower. Usually its 20 minutes at 400 degrees, starting the timer when the part reaches 400 degrees. So something big, like an engine block takes about 2 hours total.

 

While you could use IR heatlamps to cure, it would be very time consuming and tedious, as you would have to continuosly monitor the temperature and move the lamp. It could be done though.

 

My concern would be all the body fillers and seam sealers they used in constructing the car and also the lead on the roof. Plus, you could have absolutely no bondo at all on the car.

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Well I mean if your serious about it there are people out there with ovens big enough to fit a mac truck in them lol. Just do some searching and I'm sure you will be able to find one....

 

I'd really love to see a 100% powder coated car too.

Skunk works :D. the F117 is made of thermal plastic (backed CF).

 

Ferrari and Lamborgini don't even have ovens big enough. they make theres in components.:D

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  • 1 month later...

Ive done a bit powder coating with heat lamps before. it turned out great. the temp and time depend on the powder you use, the cure time is usually 10-15 minutes after the part is up to temp which is in the range of 325F to 450F. You just have to make sure that you move the lamps along and that each part gets the proper amount of time. I used a laser thermometer to tell when each part was up to temp and then i started the timer. the hardest part is that after you shoot the powder you cannot touch the part at all or the powder will come off. powder coat will stick to anything that can handle the temp and is completly grease free. the easiest way to do a whole car would be to take off every panel you can and have them done in an oven. as long as you use the exact same powder on all parts they will come out matching perfectly. thats the great part about powder coating. the only parts you should have to do with lamps should be the roof and the rear quater panels. its possible but you have to be paitient. hope that helps.

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