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Re: Is undercoating good or bad ?
Good undercoating is fine but expect it to become dirt colored. I prefer por15 and I use 3m aerosol undercoating for the places you just can't reach like the insides of cab corners ect. It is possible for the undercoating to cause problems. I have a utility bed that was undercoated and the whole bottom is rusted away. When you peel the undercoating back it's full of dirt and rust. But who knows how it was prepped before hand
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