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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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| | | | Joined: Feb 2019 Posts: 201 nothing beats a try but a failure | | nothing beats a try but a failure Joined: Feb 2019 Posts: 201 | After my epoxy primer had dried, 4 days to cure, I sanded with 320 grit. Some of the sharp edges became exposed. Will urethane primer adhere to small metal exposures? | | | | | Joined: May 2015 Posts: 11,074 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,074 | I'd recommend consulting the tech data for the urethane primer.
I would guess that you'll be OK, but the best bet is to be sure by checking the tech data sheet.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Apr 2017 Posts: 230 'Bolter | | 'Bolter Joined: Apr 2017 Posts: 230 | epoxy primers are ment to seal and protect the metal from moisture. Your sanding off your protection...... If you stay within the primers recoat window.... See your data sheet..... You can spray on a heavy coat of surfacer and then sand that. Your choices now are to fully sand the existing primer then reprime then apply the surfacer..... some people use a etching primer if the sand through is small so they don't have to reprime. You still have the problem of future sandthroughs. Put on a heavy coat of surfacer and sand that using a guide coat. You can get a better finish and hopefully avoid the sandhroughs.
Mike
1940 Chevy 1/2 Ton presently... Almost done
1940 Chevy Business Coupe... In pieces
| | | | | Joined: Feb 2019 Posts: 201 nothing beats a try but a failure | | nothing beats a try but a failure Joined: Feb 2019 Posts: 201 | | | |
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