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Mod | | | Forums66 Topics128,073 Posts1,055,908 Members48,429 | | 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: May 2015 Posts: 39 'Bolter | | 'Bolter Joined: May 2015 Posts: 39 | I've pulled the top cowl vent off my 54 Chev 3100 and need some input on painting the underside. It appears that it was originally galvanized and parts of it including the screen are showing light rust. The top side paint is good so I don't want to have the piece hot dipped. I was thinking of using a cold galvanize spray but after research I don't think it will hold up. Any thoughts on paint vs powder coating. I'm also looking at POR-15 gray rust inhibitor for durability. I've attached a Classic Parts vent just to clarify the part. Any input is much appreciated. Thanks http://www.classicparts.com/1947-53-Top-Cowl-Vent-Assembly/productinfo/34-301/#.V1IY7eSgRAM | | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | On my 37 I painted the underside grey....and on my 52panel I painted the underside, and the screen, body color. | | | | | Joined: May 2015 Posts: 39 'Bolter | | 'Bolter Joined: May 2015 Posts: 39 | Thanks, I was also thinking of going body color. | | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | Powder coat is cured at about 400 degrees F. That will destroy any "paint" you might have on the vent. Not to mention the cleaning process for application. Clean, prep and mask for paint is the best safe way to get the underside. If you find a safe way to get the rust off the screen, I for one would love to see/hear about it.
Steve H
| | | | | Joined: May 2015 Posts: 39 'Bolter | | 'Bolter Joined: May 2015 Posts: 39 | Thanks for the info on the powder coating. Looks like I'm painting, probably grey or silver. | | | | | Joined: Nov 2008 Posts: 544 Shop Shark | | Shop Shark Joined: Nov 2008 Posts: 544 | Electrolysis should remove the rust, keep the paint/finish in tact. | | | | | Joined: Jun 2011 Posts: 1,901 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 1,901 | I just removed the paint from my parking brake adjusting rods/brackets with electrolysis last night. No rust fully painted with original primer/black.
You might not want to go that route if the paint is precious.
Give me ambiguity
or give me something else
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