I did some tests with the paints I'm gonna rattle can my rifle with.

Painted a five gallon bucket with some krylon fusion, and some other camo paint from brownells.

noticed both scratch off the smooth plastic pretty easily.

what prep would be good to get the paint to stick to my tupperware stock? I intend to degrease with pure alcohol... but don't know what else to do to it.

Sanding surface a bit to give it a rough texture? or is there another type of paint that works as a good "primer" for this (sticking with rattle-can theme... do not intend to go fancy paint route with dura, cerakote, or that stuff)