PlastiDip is a rubber paint, as was said before. It is semi-permanent, meaning it will stay on as long as you leave it on, but you can also leave it on as long as you want without any ill-effects.
Plasti-dip can be found here
, as well as applicators and what-not, as well as at home depot and Pep Boys.
IF you are going to be doing a lot of plasti-dipping, I would strongly recommend getting a plasti-dip sprayer, about $200 for the base model, but well worth it.
I plasti-dipped the rims and bowties on my Chevy, and they are holding up great, 2 years so far.
I plasti-dipped my friends Charger, as you can see here - DKcustoms
Go ahead and like my page, I will be updating the Fiero album once I get it running.
[This message has been edited by DKcustoms (edited 01-20-2014).]