[Jackyl]

Not exactly sure what this stuff is, but it looks like grease/tar/oil and or Glue etc. What happened was I noticed that my car 41 buick, had a couple of holes in the trunk underside and the previous owner decided instead of fixing the rust he would cut out a piece of plywood and stick it in and carpet over everything. Well having a hard time with that answer I decided to see how bad it was, short and skinny, only about a 1ft x 2 ft section needs replacing, but on top of the metal, under the plywood was this goey crap that I see no easy way of removing, any suggestions a) what could it be b) how should I remove it in a closed area like that? Ok there will be a hole once I start cutting, but I would like to remove it before I start cutting it up. Thanks Steve

[crazy larry]

3M general purpose adhesive remover, soak a rag in it, and sop it around on the goo. use a paint scraper as needed, but the 3M stuff will do it by itself...... just wipe a bunch...

[4 Jaw Chick]

My guess would be that he sprayed (or spread) some kind of rust inhibitor around the hole and on the wood he shoved in there, probably something similar to the standard undercoat you can buy and spray on. Most likely he was thinking that it would act as a glue and slow down the progress of the rust at the same time.


Chickie.

[Kevin45]

what a lot of people used to do to seal against rust was use roofing tar. could be that is what it is.

kevin