SpudFiles

Has anyone ever heard of this stuff?

It is mainly used on firearms and I just Duracoated my shotgun yesterday. This stuff is great. I figured it could also be used on spudguns (although a little pricey for spudguns, maybe).

It could be used on more "used" cannons, such as homade paintball / airsoft guns.

Here's a link to their site.
http://www.lauerweaponry.com/

I would think that it will only work on metal.

It works on plastics, too.

pricey but they have some cool finishes if you're willing to cough up the dough.