In the case of plastic, isn't it UV exposure that
causes the yellowing? So
yep, that certainly makes sense as the paint coat should both improve the look
of the item and stop the plastic itself from breaking down further. Of course,
I'm not sure how someone would remove the paint at some future date without
whatever method used (chemical or blasting) also damaging the plastic itself...
There are many ways to strip latex paint that will not harm other
materials, given time. In fact, latex paint sort of sucks. Its lack of
durability is why it is a good choice.
William Donzelli
aw288 at
osfn.org