Fender straightening - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**8man** · 07-08-2018, 03:42 PM

I have this fender to work with.

IMG_1965 by Robert Moorman, on Flickr

It is in pretty good shape as far as rust throughs, but covered in surface rust. It has a couple of dents at the lower edges, both front and back.

My question is should I blast it or sand it or just work on it like it is?

**mongocanfly** · 07-08-2018, 04:22 PM

I has one fender about like that...the really big dent I went ahead and knocked out...then blasted it and epoxy primed.....then do all the finish work....much nicer working on clean metal.....plus the blasting may show stuff you couldn't see for all the rust....

**8man** · 07-08-2018, 04:24 PM

Greg, you work on the epoxy primer to beat out any other imperfections? Do you have to reapply the primer?

**mongocanfly** · 07-08-2018, 05:36 PM

that epoxy is pretty tuff stuff...after blasting and epoxy, I worked the dents out,heavy sand , and put on the filler..use a guide coat to see what ive got.then when satisfied I use evercoat metal glaze to finish it out....and then prime over everything when done...some smaller dents I can get out and not even break thru the primer...but more than likely youll sand thru the primer while fixing dents...no big deal though

**mr48chev** · 07-09-2018, 10:30 AM

You Might try taking a cup brush on an angle grinder and knocking the rust down in the areas you want to do the metal work so you can work on the dents and most of the dings and after you have it pretty close sand or media blast it to get it down to nice bare metal to finish it up.
Some guys might have it sandblasted or metal stripped first and then do the metal work and prime it but they probably work faster than most of us do.
I looked at a car the other day that a guy had had sandblasted a couple of years ago and let sit in bare metal in his garage ever since and it looks almost as bad as that fender does now. Whole thing has to be redone again.

vics stuff · 07-12-2018, 02:25 AM

I would just blast it completely and be done with it.
Vic

Foot Stomper · 07-12-2018, 08:26 AM

Blast it, epoxy primer, metal work, body filler, reapply epoxy to areas where epoxy was removed during repairs, high build urethane primer, paint.

Some will skip the second step of epoxy, but it's best if you don't. Epoxy gives corrosion protection that other coatings simply can't.

07-08-2018, 03:42 PM	#1
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,379	Fender straightening I have this fender to work with. IMG_1965 by Robert Moorman, on Flickr It is in pretty good shape as far as rust throughs, but covered in surface rust. It has a couple of dents at the lower edges, both front and back. My question is should I blast it or sand it or just work on it like it is?

07-08-2018, 04:22 PM	#2
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: Fender straightening I has one fender about like that...the really big dent I went ahead and knocked out...then blasted it and epoxy primed.....then do all the finish work....much nicer working on clean metal.....plus the blasting may show stuff you couldn't see for all the rust.... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

07-08-2018, 04:24 PM	#3
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,379	Re: Fender straightening Greg, you work on the epoxy primer to beat out any other imperfections? Do you have to reapply the primer?

07-08-2018, 05:36 PM	#4
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: Fender straightening that epoxy is pretty tuff stuff...after blasting and epoxy, I worked the dents out,heavy sand , and put on the filler..use a guide coat to see what ive got.then when satisfied I use evercoat metal glaze to finish it out....and then prime over everything when done...some smaller dents I can get out and not even break thru the primer...but more than likely youll sand thru the primer while fixing dents...no big deal though __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

07-09-2018, 10:30 AM	#5
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,709	Re: Fender straightening You Might try taking a cup brush on an angle grinder and knocking the rust down in the areas you want to do the metal work so you can work on the dents and most of the dings and after you have it pretty close sand or media blast it to get it down to nice bare metal to finish it up. Some guys might have it sandblasted or metal stripped first and then do the metal work and prime it but they probably work faster than most of us do. I looked at a car the other day that a guy had had sandblasted a couple of years ago and let sit in bare metal in his garage ever since and it looks almost as bad as that fender does now. Whole thing has to be redone again. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

07-12-2018, 02:25 AM	#6
vics stuff Registered User Join Date: May 2011 Location: Reno Nevada Posts: 393	Re: Fender straightening I would just blast it completely and be done with it. Vic

07-12-2018, 08:26 AM	#7
Foot Stomper Registered User Join Date: Oct 2015 Location: Calgary, Alberta Posts: 1,252	Re: Fender straightening Blast it, epoxy primer, metal work, body filler, reapply epoxy to areas where epoxy was removed during repairs, high build urethane primer, paint. Some will skip the second step of epoxy, but it's best if you don't. Epoxy gives corrosion protection that other coatings simply can't. __________________ So when is this "Old enough to know better" supposed to kick in? My 1959 GMC build thread http://67-72chevytrucks.com/vboard/s...d.php?t=686989



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