Another Undercoating Question.
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Another Undercoating Question.
General Ike's thread answered one question I had. Thank you Sir!
Now, what chemical removes it?
Since the previous owner of this '73 put oversized tires on (
), the scrapping eliminated the edge that attaches to the Splash Shields. To rebuild that bottom wheel well edge properly, the undercoating has to be removed. Does anyone here have experience on what works best on this?
Thanks much.
Steve
Now, what chemical removes it?
Since the previous owner of this '73 put oversized tires on (
), the scrapping eliminated the edge that attaches to the Splash Shields. To rebuild that bottom wheel well edge properly, the undercoating has to be removed. Does anyone here have experience on what works best on this?Thanks much.
Steve
Team Owner
Joined: Mar 2002
Posts: 44,593
Likes: 1,822
From: Huntsville AL
Use the following steps
1) Heat Gun
2) Scrapper
3) Paint stripper
4) Scrapper
5) Lots of rags
6) Clean up with lacquer thinner
Optional Item ---> Shower cap to keep the undercoating out of your hair
1) Heat Gun
2) Scrapper
3) Paint stripper
4) Scrapper
5) Lots of rags
6) Clean up with lacquer thinner
Optional Item ---> Shower cap to keep the undercoating out of your hair
Last edited by Mr D.; Feb 20, 2018 at 08:31 AM.
Team Owner
Joined: Sep 2006
Posts: 31,110
Likes: 4,171
From: Westminster Maryland
Hi Steve,
If you want to preserve the surface under the material be careful what kind of tools and abrasives you use. For example, no metal tools.
If using liquid or gel paint stripper be certain it's safe for use on fiberglass and won't soften the surface.
I've had good results using kerosene and lacquer thinner.
Regards,
Alan
If you want to preserve the surface under the material be careful what kind of tools and abrasives you use. For example, no metal tools.
If using liquid or gel paint stripper be certain it's safe for use on fiberglass and won't soften the surface.
I've had good results using kerosene and lacquer thinner.
Regards,
Alan
Last edited by Alan 71; Feb 20, 2018 at 08:59 AM.
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,398
From: SW Florida.
I would start with a power washer and see how much that gets right off the bat. Just don't use a zero degree tip. That could blow right through the fiberglass.
Last edited by derekderek; Feb 20, 2018 at 12:51 PM.
Team Owner
Joined: Mar 2002
Posts: 44,593
Likes: 1,822
From: Huntsville AL
I would strongly recommend against this.
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,398
From: SW Florida.
They have been doing boat hulls with them as long as there has been fiberglass and pressure washers. Gel coated exteriors and raw glass bilge both. Never seen a chip of resin flake off.
Last edited by derekderek; Feb 20, 2018 at 03:03 PM.
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Team Owner
Joined: Mar 2002
Posts: 44,593
Likes: 1,822
From: Huntsville AL
I have owned several of both and a boat hull is a whole different animal than a Corvette body. Corvettes do not have Gel Coat.
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Thanks men. I've got the idea. I'll take it slow, cuz being retired means takin it slow, for me anyway. 
Just wondering how I'm going to fabricate a curvy 90 degree lip. That'll take a while.
Steve
Just wondering how I'm going to fabricate a curvy 90 degree lip. That'll take a while.
Steve
Last edited by Cavu2u; Feb 20, 2018 at 03:59 PM.
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Driver's side Fender Well has at least a bit of edge to get the repair started. Thinking of using material like metal screen door screen, or a plastic milk carton, to form the base, and then glass over it. Not going to look pretty, but will do my best to finish it off.
BTW, last picture has 3 mounting holes that I noticed in Alan's photo were holding something. What goes there, which is underneath the Windshield Washer Bottle in this '73 Coupe. Thanks much.
Steve
BTW, last picture has 3 mounting holes that I noticed in Alan's photo were holding something. What goes there, which is underneath the Windshield Washer Bottle in this '73 Coupe. Thanks much.
Steve
Team Owner
Joined: Sep 2006
Posts: 31,110
Likes: 4,171
From: Westminster Maryland
Hi Steve,
The 3 holes are for bolts for the bracket that mounts the vapor canister on the other side of that apron.
Regards,
Alan
The 3 holes are for bolts for the bracket that mounts the vapor canister on the other side of that apron.
Regards,
Alan
Last edited by Alan 71; Feb 21, 2018 at 03:02 PM.
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Melting Slicks
Joined: May 2011
Posts: 2,753
Likes: 119
From: Springfield Missouri
I too wanted the undercoating off the car, ssssoooooooooooooooooooo I got under the car and used simple green and a soft brush to work it off, then painted some areas and then recoated the fender wells to help protect them from road grime. A lot of time and work to clean an area that very few get to see, but the guys at the alignment shop got to see the under neath and they ooohhgh and ahhhhed at it.
Last edited by lvmyvt76; Feb 21, 2018 at 09:53 PM.