I 've been using latex for about 6 years
and I agree with Campy 100%.

I'll add this little tidbit of information about an
experiment that I did last year when I replaced
a canopy on my 4*120.


FWIW:
Last winter,after 5 years ,the canopy finally needed to be replaced.
So I removed the old one , lightly sanded the deck between the
firewall and canopy area,brushed on a new coat of gloss latex,
let it dry for several days, and then applied the new canopy.
I was going to clear coat the new paint but decided not to do so
since the plane has been wiped down so many times I'm sure
that no more clear coat exist anywhere.

That was some ten months ago and the deck still looks like the
day I painted it and I know that 15% fuel has gotten on it from
time to time.

I'm just starting to paint my TF Stinson with latex but I "might" just skip
the clear coat this time around . At this point my opinion is that the
clear coat might be more for gloss factor than protection.

I haven't made a firm decision yet.

Regards
Roby