Thunderkyss
Veteran Member
I've looked over several threads, on this forum & others, where people have replaced substantial pieces of sheet metal, then laid down a coat of PoR-15. I've read this process so many times I was under the impression that PoR-15 was some kind of under-coating.
As I get closer to starting on my project I started to research some of the various tools & products I'll be using. When I started to look at PoR-15 I found out it is not at all what I thought it was.
According to Eastwood's POR-15 isn't an under coating at all. It's a rust treatment. They advise you brush then blow away any loose rust. Then paint directly over the rust. The material will then form a solid surface to work on. A bodyman can then use fiberglass filler or what not to repair holes & such.
So my question, why use it over new steel? I would have thought properly applied primer/sealer & paint overcoat would be enough to protect the metal from rust.
As I get closer to starting on my project I started to research some of the various tools & products I'll be using. When I started to look at PoR-15 I found out it is not at all what I thought it was.
According to Eastwood's POR-15 isn't an under coating at all. It's a rust treatment. They advise you brush then blow away any loose rust. Then paint directly over the rust. The material will then form a solid surface to work on. A bodyman can then use fiberglass filler or what not to repair holes & such.
So my question, why use it over new steel? I would have thought properly applied primer/sealer & paint overcoat would be enough to protect the metal from rust.