Mr. Pond, I think, is talking about a B-series (i.e., newer) gun, and things have changed. The finish on the pre-Bs, at least the early ones, was an enamel, and it chipped easily. I used automotive paint remover on my first pre-B, and like rock185's pre-B, above, it was pretty nicely smoothed/polished under the paint. (That paint/enamel, unlike Polycoat, was not very thick, and it didn't really hide any surface blemishes.). That may NOT be the case with the newer B series guns, but since I've not stripped one of those, so I'm not sure.
As the CZ models progressed to the late pre-B, CZ shifted to versions of CZ's polycoat, which is also electrostatically applied. That became a stronger and stronger finish over the years. (Early versions of Polycoat could be damaged by some gun solvents, like GunScrubber, and when I was active on the CZ Forum, as a moderator back then, we'd tell members to test the finish under the grips before using something new; that seems unnecessary, now.)