i just got my 65 mustang back from the soda blaster. Applied epoxy sealer today. I bought 3m’s undercoating system, but only used in wheel wells. It’s bumpy and gooey. I’d like some kind of undercoating under the entire car, so what’s good? I want it to look like paint, not the bumpy undercoat in the wheel wells. Is Eastwood’s undercaoting paint what i am looking for or is chassis black good enough?