Hi, I had my Seneca wings sprayed with ACF50 many years ago. It did weep through the wings and rivets for a couple of years, but no corrosion! It did the job very well.
Wright Brothers Master Pilot, FAA Commercial Pilot
Aviation Director, Piper Owner Society Forum Moderator and Pipers Author.
Need help? Let me know!
To add to Scott's post; even if you don't live in an area of the country where corrosion is a factor (like near salt water), the coating eventually needs to be reapplied. I live in the Midwest, and re-treat the inside of the wings about every 7-8 years or so. If you live in an area susceptible to high corrosion, I'd reapply the coating more often.
Jim "Griff" Griffin
PA28 - 161
I will be getting ACF50 sprayed while my plane is all opened up for an annual