Re: POR-15 failure
Thats odd, I have used POR on various project over the last 15 years. I have never followed the directions or done a proper prep, usually just wire brush off loose rust and paint chips then slap on a good thick sloppy coat. I have never had it chip or peel. I have used it on floor boards, under side of cabs or car bodies frame rails and such mostly just rusted areas or areas that I wanted to prevent rust. The only thing that I do follow is I store it in the fridge if I am going to store a opened can for any length of time.
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