Originally Posted by DjTrav
home depot website says this about it...
"The Plasti Dip 11 oz. Flat Black Vinyl Coating Spray is great for auto, RV and marine applications. The spray comes in a flat black color and dries to the touch in as little as 30 minutes for quick applications. It can be used indoors and outdoors and requires a primer for use. The 11 oz. can works well on areas up to 5 sq. ft."
Do I really need a primer for my wheels?
Nope. Just spray it on and you'll be totally fine. It doesn't hurt anything to experiment with it either.