On Mon, 11 Nov 1996, Don Daves wrote:
> Epoxy/Primers we were discussing from PPG specifically state not to
> sand before using the next coat - whether it's the finish coat or
> Kondar (the surfacer/filler). At least that's how I remember the
> instructions, since it's been a couple years since my last paint job.
Permit me a correction. The PPG epoxy primers can be recoated without
sanding if they are recoated fairly early after application; I think they
specify within 48 hours. There is no prohibition against sanding,
however. After they have cured for 48 hours or more, they may be sanded
before recoating--in fact they must be. (When the epoxy primer has fully
cured, sanding it is a bit like sanding glass.)
Ray Gibbons Dept. of Molecular Physiology & Biophysics
Univ. of Vermont College of Medicine, Burlington, VT
gibbons@northpole.med.uvm.edu (802) 656-8910
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