Flybyjim:
The Ag-cat story didn't come from the internet (surprise! ), it came from an actual mechanic standing in front of me. To be exact, he was buying my cassutt kit ( Reno air racer) a couple years back. He did the work on the Ag-cat himself. He said, even sitting outside, exposed to chemicals, oil and pesticides on a regular bases, the old solvent based process (Stits ?) will produce a finish that will last a solid 20 years.
Roger