The Stovebolt Site Forums The Shop Area Paint and Body Shop phos acid, how should it look when done

I wonder how much the other chemicals that may be mixed with the phosphoric acid effect the outcome? I searched every possible supplier in my area and could only find 2 phosphoric acid type products available. I am using a Jasco product. If I leave it on their suggested 20 minutes it is very sticky to try and wipe off and I realize I am leaving a coating behind. When it dries it is slightly uneven and will need to be scuffed well before primer. It does appear it would prevent rusting in the mean time. So far I have only used it on smaller parts. I am hesitant to apply it to a complete panel using my current technique because it would involve a lot of "scuffing" when I got ready to apply primer.

Chuck