radibob wrote:
>
> A question for the group. What causes bondo to bubble? Is it water that
> gets into it after it cures or is it just the inherent nature of the
> stuff to do that?
Bondo doesn't bubble on it's own. Rust underneath will lift
flakes of paint and bondo which causes the bubbling.
Bondo is usually implicated because bondo is really the only
situation where rust occurs under the surface of something. Normal
rust occurs on top so it is visible as rust not bubbles.
> that any bondo was just a "skim" and that all rotten metal was replaced.
> What do you think?
Well, some people don't appreciate how persistent rust
can be. Even people that aren't lying sometimes beleive
they "really got all the rust" when in fact they just
prolonged the inevitable a bit.
--
Trevor Boicey
Ottawa, Canada
tboicey@brit.ca
http://www.brit.ca/~tboicey/
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