From what I have been told and seen. Neither of the above products need a primer from what I understand since they are also rust inhibitors.
I would feel better with a etching primer also as long as it did not effect the products overall performance.
From what I understand the Gator Grip can be applied several different ways for different looks and does not dull down or get gray over time. Kind of like the bed liner paint kits.
The Chassis Saver comes in several different finishes, gloss. semi gloss and flat. I have handled it on a piece of metal, it had been bent, beat with a hammer, stomped, scraped bent some more and many other abuses over a year period on the paint shop counter and I did not see a nick, crack or scratch in the finish. Even after I beat and bent on it a while.
I am leaning towards the Chassis Saver product, seems I can't find too many shops that use it to have a bad word about it, except don't get it on your skin unless you want to wear it a while, as in weeks.
Now if the paint ever gets here I can get the frame to the sandblasters.
