Ever heard of cosmoline?


Nav wrote:
No -that's a brandname?

It's a jellied petroleum metal protectant, formerly used by the military
(and it may still be used by them for some things). It forms a perfect
barrier against corrosion but it is not friendly to lubricants and it's
the devil to get off.

You hear people talking about buying up WW2 era army surplus stuff and
saying "it was still covered in cosmoline."



.... WD-40 is great for cleaning & drying off
tools .... but it's too thin & volatile
to be a good surface protection for storage of metal part.


OK but it seems to work inside a plastic bag -4 years so far.

I've seen the stuff eat through plastic bags... maybe yours are made of
a better grade of plastic?

DSK