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Gary, I mentioned to you before, it is different than POR. I hate POR. Its adhesion is poor. I have seen it peel off in sheets. Master Series is moisture cured like POR, but Master Series Silver is not the same product as POR.

Pete - What I said was "I believe it is pretty much the same as POR15 with respect to adherence to rust." I am in no way saying they are the same product. But they do both adhere extremely well to rust. Or, maybe I should say that I know POR15 does, and can only assume MS does from what you've said.

I'm not at all pushing POR15. MS may very well be better. But I've used POR15 many times and with proper preparation it adheres well.

When I run out of POR I'll probably buy some MS just to find out for myself. But so far the POR has not let me down. And since I have quite a supply it'll be some time before I run out.

I have seen POR peel right off, and after proper prep. JFYI . Master series makes several products, for different application. MS Silver is a primer. They suggest top coating it, depending on where and how it is used. You could use POR as a top coat. It is just not the material to use right over a rusty panel, regardless as to how it is advertised. MS even makes a material just like POR. But . . they don't claim it should go over bare steel :)

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