On Wed, 4 May 1994, Robert T. Weverka wrote:
> I was thinking of getting an HVLP systems for my woodworking and I
> wondered If this would be good for painting the car as well.
>
HVLP paint systems are sold for auto painting--see any Eastman catalog. I
have no idea how well they work, but I like the idea. The principle
reason these might be slow to catch on is that high pressure compressed
air is enormously useful for tools, etc. as well as for spraying. So
if you buy an HVLP system, you will still need a compressor. On the
other hand, if you have a compressor, you don't absolutely have to have
an HVLP system. The HVLP is probably the wave of the future,
because it causes less polution, and eventually the air police will
come down on us backyard painters. HVLP also should have fewer
moisture problems than compressed air.
In regard to moisture traps--I have done damn near everything in the book
to eliminate moisture from my lines--I have an overhead system of sloping
copper lines, a trap at the outlet, all that stuff. And if I paint a car,
there still can be some moisture drops near the end. Motorcraft makes
good disposible plastic cannister type filters that screw into the spray
gun, and these are quite helpful. I use a fresh one at the beginning of a
paint job, and if I put on more than two coats, I replace it. They are $5
or so each, but that's peanuts compared with the unhappiness of finding
little blisters of paint covered water in your last coat of paint.
Ray Gibbons Dept. of Molecular Physiology & Biophysics
Univ. of Vermont College of Medicine, Burlington, VT
gibbons@northpole.med.uvm.edu (802) 656-8910
|