Read an interesting thread on Proper Paint for Bookcases and would like
to drift to the question of finish application, whether alkyd or latex.
I build bookcases, chests, cabinets and refinish the old, with some
natural but most painted. Should I own a siphon paint sprayer or a
HPLV. I would love an excuse to buy a compressor to support a brad
By HVLP I assume you mean the turbine type. There are also HVLP sprayers
(conversion type) that use siphon feed or gravity feed. A compressor
sized to support a brad nailer will not supply adequate air volume
painting. I wouldn't consider less than a 5 HP 20 gallon compressor.
Both kinds of sprayers do a good job. From what I have heard and not
what I have experienced, Latex is very difficult to spray with a turbine
type HVLP sprayers. I've used them for other finishes and wished I owned
one, but I can't afford or justify the cost of the one I would like.
I usually a HVLP conversion gravity feed sprayer and it does a more than
good job. I have a 230V 6 HP 30 gallon compressor.
Hope this helps.
I've never sprayed paint in my life, but I'm currently reading "Spray
Finishing" by Andy Charron as I'm getting ready to try spraying some precat
lacquer. Based on what I've read so far, you're probably right about
spraying latex with a turbine HVLP. The tip pressure in some turbine HVLP
systems is too low to atomize heavy liquids. From what I read, you'd
probably need a 5-7 stage system to be able to do it properly (think $$$$).
Thanks for the information which led me to read the specs on, for
example, the Porter Cable Model PSH1 gravity feed HPLV gun - it needs
8.5 SGF at 40 psi. Their pancake compressor which would run my brad
nailer puts out 3.7 SGF at 40 psi. Looks like I stick with a brush and
roller for my home projects - darn.
About 40 years ago I used (actually the compressor is still running) a
Sears inexpensive tankless compressor (put out about 35 psi) and painted
numerous pieces of furniture with enamel and achieved great results.
Progress sometimes is not all good<g>.
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