Re: [diesel_mercedes] Any Tips for removing factory undercoating ?

 

Here are a couple of posts from other forums that might work:

#1  I have had good results using a heat gun or propane torch and a paint scraper. Heat the undercoating until the scraper gets to metal and the undercoating comes off fairly easy. If you use a torch be careful to keep moving it, and keep a wet rag handy.

#2  The previous owner of my '40 Buick had coated the outside of the gas tank with an "undercoating" type stuff. I am not sure what it was, but it did not do a good job at sealing the tank from leaking like he expected. Anyway, my first attempt at removing it was with a grinder and wire brush. That was a 90% failure. I then tried heating it with a torch and scraping it off. (Yes I purged the tank first). That made an even bigger mess . So in a last resort I asked the old guy at the hardware store. He suggested that I try floor adhesive stripper. Specifically the stuff that works on mastic. It worked like a charm. I brushed it on, let it set for a while, scraped it off with a putty knife and wiped it with acetone. Be warned, it will take the paint off too. Good luck.
 
brian from laverne, ca
Mary (195K)  Martha (280K)
1983 w123 300d's
From: Steve Parolin <stevenparolin@yahoo.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, May 29, 2012 5:45 AM
Subject: [diesel_mercedes] Any Tips for removing factory undercoating ?

 
I need to do some rust repair. Any one have any tips for removing the rubberized factory undercoating?

I have been using the grab what you can with needle nose and twist. This gets a tiny peice at a time. looking to speed the process.

Need some passenger rocker repair.

Thanks
Steve



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