I know I can't do this with linseed oil, but I want to make sure it's
ok to store
(motor-) oily paper towels and cardboard flats in a plastic trash bag
until I have enough
to take up to the city for proper disposal (?).
With Linseed Oil and cotton or paper towels, hell no! You know, but
for those that haven't heard (or read the MSDS) it will auto oxidize
enough to self combust... Add water.
Or better yet, piss off the Smog Nazi's and make a little Burn
Barrel to safely dispose of it in a controlled manner. (Which beats
the hell out of an UNcontrolled manner...) Keep on hand: Garden
hoses, dry chem extinguishers, additional help and a hot phone line to
For other oily wastes, I'd still put the plastic bag in a steel
trash can or dedicated steel "Oily Waste" shop can or a loose-top
steel drum, just in case.
Inside or out, a steel container with a tight lid will contain a
fire and snuff it from oxygen depletion. Just don't open the lid if
it's still hot, or it's "Off to the races" again.
It is safe. Motor oil does not polymerize, which is the process that
gives off heat by some oils (e.g., linseed). Or ... something like that.
Also, I have often stored oily rags without any indication that they
were about to go ablaze.
With a tightly closed metal cover.
"If the personal freedoms guaranteed by the Constitution inhibit the
government's ability to govern the people,
we should look to limit those guarantees."
Bill Clinton 1993-08-12