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Mod | | | Forums66 Topics128,077 Posts1,056,033 Members48,433 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | I have a quart of the gray engine paint. The label says it is PPG ALK-200 paint. I looked it up at the PPG site and don't see anything about it being used as an engine paint. The temperature rating is 200 without additive and 240 with. No additive on JCs website so seems like they don't think it is necessary. Seems sketchy to me. I haven't heard of complaints about it so just wondering whether those of you that have used it can give a thumbs up or down. This is an everyday usage truck so it has to be durable.
Dennis
Last edited by DennisM; 08/31/2014 5:42 PM.
40 Chevy 1/2 ton
| | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 |
Last edited by DrewP; 08/31/2014 5:49 PM.
Drew
| | | | | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | Thanks Drew. I just noticed that and updated my post probably same time you were posting. Most engine paints say 500 or so. Still, nothing on JC site says anything about the additive ALK-201 Polyurethane Enhancer.
Dennis
40 Chevy 1/2 ton
| | | | | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | For those that used this, did you use a primer? If so, what was it? Man, paint sure is a tricky subject.
Dennis
40 Chevy 1/2 ton
| | | | | Joined: Jul 2008 Posts: 413 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 413 | Dennis, any singlestage urethane or enamel will work fine on engines. Your engine is not going to get hot enough where it will burn off the paint, unless your painting exhaust manifolds.
Spray a coat of self etching primer, before you spray on your color. The self etching primer has an acid additive that will bite into bare metal, giving you good adhesion.
All you need is a light transparent coat as an adhesion promoter, let it flash off for a few minutes, then go directly to color.
I like to use Dupont Variprime, you can get it in quarts and has an acid additive you mix 1 to 1.
I did the engine in my Chevelle 14 years ago, with Variprime, & used Seymor's engine enamel from a spray can. It still looks the same to this day.
When I do the engine in my GMC , Im using Dupont, Idustrial Imron for color, it's extremely durable, you can pour it on & not get runs, & it's only $29 bucks a quart.
Im guessing it's the equivalent to the PPG that you are talking about.
Last edited by JeffL; 09/01/2014 6:08 PM.
| | | | | Joined: Mar 2010 Posts: 10,279 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,279 | I cleaned my block with a hot pressure washer, blew it dry, treated with Ospho, hot pressure washer again, blew it dry again, primed with extreme heat Rustoleum engine primer and painted with dark gray engine paint from The Filling Station. Looks like new three years later.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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