woodchucker wrote:


A long time ago, I sprayed regularly (lacquer (automotive) , dope
(airplanes) imron (airplanes (both models and full size), buses, some
cars) ) . Both for myself and for other people. Up here in the North
East when it gets humid, I would have problems with hazing. So a
little retarder would allow it to slow the drying process, and not
fully trap the humidity into the finish.
Without knowing the chemistry of it, I assumed it was :
By slow drying it would get pushed out in the gassing off process of
drying.
The retarder idea came from the supply shop I used to get all my
paints from.

That explains a lot Jeff. Most of today's finishes are not lacquer - which
did indeed suffer those issues like you experienced back then. Not so much
today - not at all. I'm still thinking about the OP's post - if he used
poly then I really can't understand why he experienced what he did,

--

-Mike-