I'm getting ready to start my frame soon and I had the same question.After reading the msds on the por15 I'm not gonna touch the stuff.Read the special precautions and storage sections too.Seems the stuff has a pretty short and shakey shelf life.I'm gonna check out the zerorust.good question,good info.thanks for posting.
http://community.webshots.com/mypho...mp;albumID=551424330&security=ekZMUw