Originally Posted by boilermaker29
A very, very thin protective layer. 2-3 weeks, I'd be happy for more than 2-3 hours.
This is the deep glo$$ 3.0, and with a layer of mothers pure carnauba applied the next day after the sealant cured. Beads water great, but I'm not sure that gives much protection against any sort of acid. The etching is definitely in the clear coat. Worth a try, but no dice. The hood already looks worse than my 2000 civic, which is parked right next to the subaru.
Is your Impreza newport blue pearl? If so, I have that same color and haven't had any severe etching problems. I use 3.0 frequently and have never had a problem personally or with a clients car.
I'm wondering if you just had an off case of high-acidity? Are you positive the etching wasn't on your paint prior to applying the sealant and wax? Depending on how deep the etching is a polish could solve your problem.