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Old 06-05-2006, 10:05 PM
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suggestions on painting my engine compartment

I'm installing a sbc in my 59 chevy truck and would like some advise on painting the engine compartment. I really don't know that much about spraying and what type on paint to use. I'm not looking for a showroom finish but a glossy look would be nice.

I plan on power washing the engine compartment but after that what grit paper should I use and should I shoot a primer before painting? Also I have the old style paint gun(sears) that I will be using to apply the paint. I have a regulator/evaporator but would should I set the pressure at? Any help would be great.


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Old 06-05-2006, 11:28 PM
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re: paint engine compartment

first power washing is the best way to start. Then get some aircraft striper. Use some really good dish washing glove's steelwool & a cheap paint brush & lots of water & eye potetion ect.Then when it's good & dry prime with epoxy primer sealer. When dry lightly scuff it with a green scotch pad. Blow it down throuhly then wipe it down carfuly with reduser & a tac rag. (knot at the same time of course)(All of witch can be found at at your local auto body supply stores. & some auto part's store's.) Then use polyurathane enamel & hardener. Your air psi Sb @ or between 35 to 45 max. Keep your gun no closer than 12in's from what your painting. Do 1 light coat and let stand for 15 to 20 minute's then put 2 slightly heaver coat's agian let stand for about the same amount of time.Then 1 more heavy coat. Remember to mix 50/50 piant & reducer & 1 To 2 oz. of hardner. I hope this help's
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Old 06-06-2006, 04:53 AM
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Everyone has different opinions on how to do this stuff. Personally, I don't like to use paint stripper on anything that has hiding places. That stuff will come out later and bite you. If the paint is relatively sound, as in not peeling or rust, I would leave it. You can clean it real good with a pressure washer. Then clean it with a solvant based wax and grease remover. Then scuff it with a scotchbrite pad. I would then again wipe it, this time with water based WG remover. It then should then be ready to be sprayed with epoxy primer. The epoxy will work as a sealer, and a good base for the paint.

As for the air pressure for your gun, they are all a little different. It should be adjusted to fit the spraying of your gun. The mixture of the paint is also dependant on the materials that you purchase. Mix according to the tech sheets for that product.

Keep in mind that striping a panel is not always the best move. If you are going to spray something on it afterwards, It will need to be sanded good with 80 grit paper or courser to get the paint to stick. An engine compartment has alot of areas that are extremely hard to get sanded good. The epoxy will stick better to a scuffed paint than to metal that isn't sanded properly. The epoxy will have a window where it can be painted right over without having to sand it. If it comes out smooth enough, you just spray over it. If there is some texture to it, just sand it smooth first.



Last edited by adtkart; 06-06-2006 at 04:59 AM.
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Old 06-07-2006, 01:31 AM
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re;painting engine compartment

If you remove everything from the the engine compartment & I mean everything including any rubber parts the method as I said before it is not only the easyst way to go but more cost efetvie & less time cunsuming .Truste me after more than 30 years I've found this beats the pants off all the other way's I've tride.( And I've all ways gotten show car rezults.) Don't belleve me? Try all the other stuff first .( I have.) Aircraft striper is the way to go. Spend A little time taking everything apart & clean it. Yes it's a big pain. But in the long run knot only well you be happier but your friend's wll just poup. And what can I say I Like fast easy & really good workmenship.
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