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Old 12-21-2003, 05:43 PM
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Powdercoating question?

Top of the mornin to ya all.
Anyone tell me the best or the best closest place to have things powdercoated? Im in Ohio.
Im having my see thru valve covers redone as well as an intake manifold. While I have the plexiglass off the valve covers getting redone, I want to send the valve covers and intake off to have powdercoated. Can they do em in any color? Will they take the intake manifold in the slight dirty shape its in and go from there, or do I need to clean em first? Thanks, HG

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Old 12-21-2003, 10:54 PM
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Hey Hemi......

check it out.

but i've seen this outfits work..... 2

as far as grime goes, who wouldn't appreciate clean parts to work with, but they are gonna blast them clean before anything else is done. unless they suck.....
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Old 12-22-2003, 10:17 AM
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They will clean the parts and then bake them to get all the oil out. Once the part is clean they will then apply the coating. Make sure whatever you get coated it able to handle 650* temps. Most places can do any color you want (incuding metal flake). Black and red are usually the cheapest (cause most places stock that), they may have to order special colors.
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Old 12-22-2003, 12:54 PM
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i wish the place i go to baked them first to get the oil out cause some ran out of a pin hole and wrecked my forks, but they are redoin them. i had sandblasted them AND hot tanked them but the 60 year old grease still was hiding in there. they will sandblast and spray them with hot degreaser and then bake them. they can bake them at less than 650 if you ask them or have a part like mine that was brazed. any color under the rainbow. but i know builders who wont use an intake that's been sandblasted because they have bad luck with sand hiding in places even after being washed thoroughly and then the sand came out and ruined the rings in SHORT ORDER so i would be leary about doing an intake, but... how much smaller is sand than metal grindings from porting? you dont need to sandblast them yourself but you will have to pay them extra to do it. you can get them to cut you a deal if you do it in a color they do alot of and can do it at the same time as somebody else's parts. i got my whole bike frame and misc. pieces done for $110 cash (no receipt) because he hadda big load of black he was doin.
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Old 12-22-2003, 02:03 PM
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Ask before you chose a shop. Any shop worth their salt will prebake, especially transmission cases, engines, that have been living in oil. I have done MANY auto tranny cases (polished, not sand blasted), power steering pumps, intake manifolds, engine blocks and heads, etc. and have never had fugitive sand damage.
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Old 12-22-2003, 05:55 PM
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How well would an engine hold up to powdercoating? HG
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Old 12-22-2003, 08:22 PM
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They hold up extremely well. In fact, you can coat your exhaust system except the header itself. My Willys headers are ceramic/metallic coated but the header mufflers are powder coated flat black. The intake manifold on my hemi is powder coated Chevy orange; the heat x-over passage gets to exhaust temperature but the coating is unaffected. Have been going great for 5 years. An engine will last a very long time.
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Old 12-23-2003, 12:27 AM
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Willys36, Do you think the poweder coated engine runs hotter than it would if it wasn't coated? Just curious I was thinking about coating an engine I am building. Is your car a street car?
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Old 12-23-2003, 08:17 AM
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That's another urban legend. Radiant and convective heat loss from the block is such a small part of the total heat rejection that it is insignificant. Make sure you have a good radiator with plenty of air flow and it will work fine. My son's 230 Chevy straight 6 in his '36 Pontiac sedan runs the thermostat rating as does my buddy's SBC in his '42 Willys pickup. Both are 100% powder coated.
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Old 12-24-2003, 07:07 AM
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650 degrees, are you sure about that? That sounds awfully hot, seems aluminum would be harmed at that temp. My local powder coater say about 400 degrees is all that is needed.

Vince
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Old 12-24-2003, 08:18 AM
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400F is more like it. Still eliminates anything with body solder on it. Tranny cases cruise thru with no problems.
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Old 12-24-2003, 10:28 AM
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I asked a local guy, the preheat the part to 350 then bake at 400 deg F.
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Old 12-24-2003, 11:30 AM
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What kind of prices will I be looking at for engine, intake and valve covers?
Any one have any pics of Powdercoating? HG
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Old 12-24-2003, 11:36 AM
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An engine cost me about $60. PC looks like a very good acrylic enamel paint job. The intake manifold in this picture is PC.
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Old 12-25-2003, 02:20 PM
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Man..This is giving me some new ideas .

Could you do your own powdercoating at home using this ?I guess that if the parts weren't too big,you could bake them in an old oven .

Nightrain
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