...I purchased an after-market front fender from HD for my Dyna. The fender is plastic, ( or as HD says "a composite"...?) which was supposed to be primed and ready for paint. This thing looks to be bare plastic with no hint of primer on it. I've been told that some plastics do not require a primer and that you can go ahead and shoot it with a ureathane paint as long as the surface is scuffed up a little. Also heard that a watery type primer is used in painting plastic. Anyone got any insight on this?