Can a newbie control rust? or Honey I Think I Finally Found THE Car!

I think that would work well. It lays down real well with the fiberglass. Shouldn't need any weight. If you want to top coat it wait until it's just a little tacky. Its pretty benign stuff. I think you can coat it with about anything.
This is good info. I'm going back to search for por-15 to see what else I can learn while I'm waiting for the owner of the car I'd like to buy. My mind races with thoughts of applications; undercarriage, inside doors, and?