Hi Mark. Just curious if you have any input on this - I run my gun up around 25 or 30 PSI. Any idea for the discreptancy between the two? Where are you measuring air pressure - at the gun or at the compressor? When I run the pressure down, the effect is that the fluids come out at a very low pressure/rate and do not appear (my visual judgement) to atomize much at all. With the pressure up high, it really atomizes. I am using an Asturo ECO/S gravity feed gun. It was recommended to me by Jeff Jewitt. I was not having success with my turbine-Accuspray, and the Accuspray gun drove me nuts when trying to clean - what a job! The Asturo requires absolultely no dissassembly - you just run a tad of warm water through it and it is clean as new. Do you thin your PSL? Have you tried any of their other finish products? Terry Farrell ----- Original Message ----- From: <bases-loaded@juno.com> To: <pianotech@ptg.org> Sent: Friday, September 07, 2001 3:14 PM Subject: Re: Oxford Premium Spray Lacquer > Hi Terry - > > On Fri, 7 Sep 2001 08:01:38 -0400 "Farrell" <mfarrel2@tampabay.rr.com> > writes: > > What kind of pressure are you running AT THE GUN? > > app. 5.5 - 7 psi, depending on the material, and a rather bewildering set > of 'intangibles' that just might include how Mercury is aligned with > Mars.... hard to tell sometimes. Whatever works best, of course is the > glib answer. Believe it or not, to some degree I think I calibrate it to > the way it 'sounds' coming out of the gun. Sounds like I've been > overcome by fumes, I know, but there IS a certain sssssssssss sound that > ssspellsss ssssuccesssss when ssssspraying. Actually, probably 80% of > the time I have it set at 5.5 - 6. > > > > > Question for Greg and Mark. When spraying a piano lid, do you hang > > the lid vertically and spray both sides at once, or do you lay it > horizontal > > and spray one side at a time. > > Horizontal. I'm not in that big a hurry. > > > >If you lay it horizontal, how long do you wait before flipping it over? > > > At least 3 days, sometimes as much as 7 if I'm busy with outside work. > > > >If horizontal, do you put all your coats on > > one side, and then start coating the other side? > > Yes. > > Mark Potter > bases-loaded@juno.com
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