oilfree clean dry and totaly rust free is what is needed for epoxys
a sprit based wipe or some thinners will get the dirt and grease off and acid based rust removers cand lift off light rust and leave a good key for meny paints
me i just used an acid rust remover then upol zinc182 primer with chassis black on top all sprayed with normal thinners
no fancy epoxys as im thinking there may be ajustments needed before im finished
