Anyone used either? Both? Any preferences? Ive used POR since its available locally; so far it seems to hold up well; Being that RB has to be ordered out puts it at a disadvantage; but at the other site I visit there are guys that swear by RB; I wish someone close had some, so I could try it side by side for myself, to compare. I gotta coat the inside of my Wrangler frame before this winter for sure;I have a couple of $2 garage sale hand-pump weed sprayers, that I can throw away when i finish with them, that will hopefully work for that job. Anyone else have an idea to spray the inside of a tube frame?? (I cut a hole in the sides and got in there with a SHop vac, the built up scale was so high in the rails)
I know that RB has an "automotive" formula that is supposed to be thinner but with more solids than their normal stuff, I'm thinking that might give me better coverage. Their site says NOT to thin it out at all, spray as it comes out of the can... I hope to achieve full coverage within the rails. Maybe multiple coats.
and having that Volare body, bare in the garage with lotsa exposed bare metal, I can definitely use at least a gallon. I want to do the whole underside of that car+cowl and complete eng compartment, and the whole inside of the trunk, floorpans, inside the rockers (that I am replacing) etc; basically everything but the outer sheetmetal that is seen by all. I've done all the K frame, control arms, sway bars, leaf springs, iso mount parts, battery tray, hood hinges, rear end housing, backing plates, and more, in POR 15 (have yet to do the torsion bars, they are still bare rusty metal in the rafters) but of what Ive done I've sand blasted it all andput SEVERAL costs on when its been freshly bare metal. Got some surface rust (basically rubs off with my fingers) on the bare engine compartment;
is it worth ordering out the RB or should I go with whats locally available?

I DO have a POR 15, engine painting "kit" in Chrysler Blue that I bought a while back to do the engine for this car with. Ive usually used PlastiKote or DupliColor in the past, thought I'd try their stuff; that "kit" cost $53.