[69z28freak]

Does anyone have any suggestions for stripping the undercoating from the bottom of my 69 Camaro

So far I have started by Dropping the tank, to start the task of stripping all the undercoating from the bottom of the car.



Here our fabulous hand model demonstrates proper blocking methods. Check out how thick the undercoating is on the tank.



Here is the tank post extraction. It is very clean and rust free on top. It looks like no moisture made its way between the trunk floor and the top of the tank.



After removing the tank I was quite pleased to see such pristine metal lurking beneath. It looks like the metal under the tank was painted silver, but I think it is the dry overspray of the white body colour.



Hopefully once I remove the undercoating the metal will be as nice as under the tank. Factory spot welds are interesting. Not very many at all. I was expecting more spot welds.



The undercoating appears to have been really globbed on pretty thick. I wonder what they used for product and what kind of application was used. Its very messy, but so far it appears to work very well.



Overall I was surprised at how quickly the tank can be removed. Only 2 nuts and 1 wire to remove. I have a new quanta tank, but I may see how the undercoating comes off of the original first. Perhaps I will use the original tank and sell the Quanta tank.

Thanks to our fabulous hand model for lending a helping hand.



Here is what I am up against.

[67sc]

From the factory, I doubt you'd see rustproofing on the gas tank. GM put it in the wheel wells, and on the body pan. This stuff was hard (well, after 40 years) and can be loosened with heat and/or brake cleaner, or some ingredient.

Aftermarket rustproofing is different and is gooey nasty stuff. Not sure what removes it...

[69z28freak]

Originally Posted by 67sc

From the factory, I doubt you'd see rustproofing on the gas tank. GM put it in the wheel wells, and on the body pan. This stuff was hard (well, after 40 years) and can be loosened with heat and/or brake cleaner, or some ingredient.

Aftermarket rustproofing is different and is gooey nasty stuff. Not sure what removes it...

This was dealer installed undercoating done in 1969. It is very hard.

[67sc]

Ok, try brake cleaner as suggested and heat. No heat on the gas tank...
Or, you could use your brain and experiment.

[HwyStarJoe]

I used a heat gun and good scraper. Came off like frosting. Took a little while but it was just a broom and dustpan needed to clean up. No glops or drips or a zillion rags or respirator needed.

[RickD]

Ditto on what Joe said. I used a plastic scraper and heat gun with a final wipe with laquer thinner. A real character builder. I had alot of hours into that project.

[The Camaro Guy]

Kinda funny, the Camaro I just bought was just undercoated to protect. . . .was a non undercoated car to begin with! It was built to be a driver and to quiet the car down. A rust free NC car. Good luck with the undercoating removal. Kerosene works too, spray it down and let it soak.

[reelknots]

I used a Craftsman multi-tool with the knife blade attachment, the bulk of it peeled right off, then used lacquer thinner fot final clean.

[yellow69RS]

I used a wire brush in an angle grinder. Be sure to wear resperator and face shield if using this method.

Jeff

[othal]

Aircraft Stripper and a scraper works well. Wear a respirator.

[prostreet69camaro]

Propane torch or heat gun with a scraper. Then sprayed with oven cleaner called Mister Muscle. It is in a blue can and the only place I can find it now is on the internet. Spray with oven cleaner, let sit about 5 minutes then rinse off. You can also use steel wool on the residue with the oven cleaner. Make sure you wear rubber gloves and do not get it on your skin or eyes. Also dont get it on your paint.

[TModel66]

I used a paint stripper call Strip-Eze and it's better than anything I tried. Get at local hardware store. Put it on let it set a little while and start scraping. No need for heat with this. Then when you get finished use a wire wheel to just buff it up. It worked well enough I sold my body man on it and he won't use anything else now.

[69z28freak]

Originally Posted by HwyStarJoe

I used a heat gun and good scraper. Came off like frosting. Took a little while but it was just a broom and dustpan needed to clean up. No glops or drips or a zillion rags or respirator needed.

Hey Joe what kind of heat gun did you use?

[HwyStarJoe]

Clairol Ms. Shinyhair.


Kidding... a Weller I picked up from Sears or someplace. Came with the different nozzles. Yer standard heat gun.

[Everett#2390]

Older times was a propane torch, had no heat guns then, to soften then scraper to scrape off.
I would suspect the undercoat added by contractor from the dealer, garden variety type as many dealer add-ons are added after the delivery.