The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Paint & Bodywork

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-14-2020, 07:44 PM   #1
7D2N
Senior Member
 
7D2N's Avatar
 
Join Date: Aug 2007
Location: Morgan County Utah
Posts: 469
Inside front fender prep ?

How do you guys prep the inner fender area? I had some sandblasting done on the outside and used etching primer on the exposed metal.

Thanks, 7D2N
Attached Images
   
__________________
Just for the fun of it
7D2N is offline   Reply With Quote
Old 11-14-2020, 08:24 PM   #2
mongocanfly
Post Whore
 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 12,028
Re: Inside front fender prep ?

I had mine media blasted, Inside and out,,,then epoxy primer ..then I did lizard skin in the wheel wells
__________________
Mongo...aka Greg

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
2013 GMC Z71..daily driver
mongocanfly is offline   Reply With Quote
Old 11-15-2020, 10:54 AM   #3
lupo
Registered User
 
Join Date: Aug 2019
Location: usa
Posts: 90
Re: Inside front fender prep ?

Well… That photograph shows brackets and mounting holes. I would treat the brackets and all the mounting holes and the entire fender with the rust remover metal prep etch. Then I would use the aluminum pigmented permanent rust sealer primer 2 coats followed by a topcoat.

Here's why, when ever you use a fastener with an epoxy primer and break the paint film the rust will travel.. It's the same with the brackets the insides of the fenders is subject to stone chipping which will start the rusting process..
lupo is offline   Reply With Quote
Old 11-16-2020, 08:47 AM   #4
projectking
Registered User
 
projectking's Avatar
 
Join Date: Oct 2006
Location: Orland Park Il
Posts: 1,985
Re: Inside front fender prep ?

There’s plenty of automotive grade epoxies available that aren’t brittle and prone to cracking when you assemble. As mentioned bed liner is a nice option on bottom of inner fenders and wheel tubs.
__________________
68 GMC C3500 Longhorn DRW
67 Chevy C10 LWB
90 Mustang Gt
90 Mustang Notchback
projectking is online now   Reply With Quote
Old 11-16-2020, 09:14 AM   #5
lupo
Registered User
 
Join Date: Aug 2019
Location: usa
Posts: 90
Re: Inside front fender prep ?

Quote:
Originally Posted by projectking View Post
There’s plenty of automotive grade epoxies available that aren’t brittle and prone to cracking when you assemble. As mentioned bed liner is a nice option on bottom of inner fenders and wheel tubs.
Permanent rust sealer primer will pass a 1/8 Mandel band without cracking. As for brittle never saw that happen either. Here is another video for you to enjoy https://www.youtube.com/watch?v=AhW3...ature=emb_logo

Last edited by lupo; 11-16-2020 at 09:25 AM.
lupo is offline   Reply With Quote
Old 11-16-2020, 09:28 PM   #6
7D2N
Senior Member
 
7D2N's Avatar
 
Join Date: Aug 2007
Location: Morgan County Utah
Posts: 469
Re: Inside front fender prep ?

I really can't spend a lot on blasting. I plan to do most of the insides by hand the best I can. Will some rust converter in the areas that are hard to reach then prime and paint for a driver truck?

Thanks
7D2N
__________________
Just for the fun of it
7D2N is offline   Reply With Quote
Old 11-16-2020, 09:47 PM   #7
lupo
Registered User
 
Join Date: Aug 2019
Location: usa
Posts: 90
Re: Inside front fender prep ?

Clean up the loose stuff with a wire wheel and die grinder discs. Rust remover/metal prep or converter comes next like other the brackets. Applied 2 coats of the permanent rust sealer/primer and follow it up with your bedliner, chassis paint or undercoating.

The aluminum pigmented permanent rust sealer cuts off both the moisture and oxygen to the steel. Whatever rust is under it cant continue
lupo is offline   Reply With Quote
Old 11-16-2020, 11:45 PM   #8
truckster
Senior Member
 
truckster's Avatar
 
Join Date: Jan 2001
Location: Orem, Utah
Posts: 6,029
Re: Inside front fender prep ?

I used a roller and a brush to reach as many areas as I could with rust sealer on mine. Then I used gravity - I poured a small amount into the inside of the fender and let it run into the places I wasn't sure I had hit with the roller and the brush by moving it around so the low spot was where I needed it to run.
__________________
I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson
truckster is offline   Reply With Quote
Old 11-17-2020, 12:03 PM   #9
lupo
Registered User
 
Join Date: Aug 2019
Location: usa
Posts: 90
Re: Inside front fender prep ?

Harbor freight sells engine cleaning guns for $9. It's an air sprayer with a siphon feed and is excellent for spraying rust remover's, sealer's, paint in hard-to-reach areas like rockers and windshield posts I've used this tool for years and it really works great
lupo is offline   Reply With Quote
Old 11-17-2020, 09:20 PM   #10
7D2N
Senior Member
 
7D2N's Avatar
 
Join Date: Aug 2007
Location: Morgan County Utah
Posts: 469
Re: Inside front fender prep ?

Thanks guys. I did get the clean up done with the wire wheel, sand disk, red sand pad. I can't do much painting now. I will update with the rust sealer.

7D2N
__________________
Just for the fun of it
7D2N is offline   Reply With Quote
Old 11-20-2020, 09:00 PM   #11
hugger6933
Registered User
 
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,127
Re: Inside front fender prep ?

Just to weigh in on this I clean up the best I am able with sanding brushes whatever wheel thingys etc etc. Most all the time I epoxy and then couple coats of high build pretty much the same as the outside. That may be one reason it seems so slow I think well it took forever to get that one done then my wife may remind me that I built blank number of late model wrecks during the same time. Jim
hugger6933 is offline   Reply With Quote
Old 11-22-2020, 11:05 AM   #12
LT1 Burb
Senior Member
 
LT1 Burb's Avatar
 
Join Date: Sep 2010
Location: Winchester Oregon, formerly Vancouver BC
Posts: 2,898
Re: Inside front fender prep ?

I prep all the underneath of vehicles I do by going to bare metal, then seal it and then use raptor liner, I then base coat clear coat over it.
Attached Images
    
LT1 Burb is offline   Reply With Quote
Old 11-22-2020, 04:54 PM   #13
notsolo
Senior Member
 
notsolo's Avatar
 
Join Date: Apr 2008
Location: Md
Posts: 2,056
Re: Inside front fender prep ?

WOW...That's awesome.
notsolo is online now   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:46 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1997-2020 67-72chevytrucks.com