Ack. I keep mixing up two different products. I was thinking of POR Patch, rather than POR Putty, to act as a filler. I guess either one would work though. I think the putty is best used over POR 15 (the paint), while POR Patch is thickened POR 15, which would imply that it could be used directly over treated metal. I've used the putty before and have plenty leftover, but just got a tube of the patch material, so I haven't tried it yet. I guess I can just experiment with the two products on a bit of scrap metal to see which I prefer.
Thanks for the tip on the brake cleaner. I'll be careful to avoid that area, or use it before I make the repair. (I was planning on using POR-15's degreaser and rust converter on the repair area before I begin the repair.)
Hopefully tonight I can make some progress. I messed up my back (again) and have to be very careful of how much I exert myself.
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