It is not the original paint because I removed the bench seat and under the seat is the original white non-skid. They definetly did not prime, it's alomost like if you white washed a fence. The color is there but very thin and lightly coated. The pressure washing sounds like a good idea, I think I am going to try and use a palm sander with lo-grain paper on a small area. I'll try and post some pix. Thanks for the advice!