Oxford Premium Spray Lacquer

[bases-loaded@juno.com]

Hi Terry -

Sorry for the lack of specifics....

My Accuspray gun is designed to require 80-90 PSI delivered to the gun
from the compressor.  Then, at the mini-regulator at the gun handle, I
step it down to about 6 PSI, as I indicated.  By thinning a finish 5% or
less, and using the nozzle/tip/air cap arrangement I listed before, I get
extremely good atomization.   Clearly, your gun is set up completely
differently.  My Accuspray is a bit of an air hog, as an older generation
HVLP conversion gun,but I have a big enough compressor to handle it quite
easily.  I think your gun is a newer generation HVLP that requires a lot
less air to spray well.  I have heard nothing but good things about the
ECO/S gun, from quite a few refinishers. 

You are right that tearing down the Accuspray gun is a bit of a chore,
but I only do it at the end of each refinish job, and it only takes me
about 5 minutes to tear it down, and let the parts soak in lacquer
thinner, then about 5 minutes to put it back together.  Practice makes
perfect, eh?  During a job, like you, I just run water thru it after each
spraying session.

Yes, I thin the PSL about 5% water, maybe less.  I have also used their
Oxford Hybrid Varnish, which is a very attractive acrylic/tung oil
hybrid.  It sprays a little differently, but gives the wood a warmer look
than any other water based product I've used, I suppose because of the
oil.  Not appropriate when wanting to rub to a sheen higher than satin. 
I use it on uprights mostly, although lately, in my never ending
insistence on trying new finishes, I have been using Aquacote products
with very good success.  They are located close to me in Ohio, which is a
plus.  I have been hearing some pretty amazing reports about a new water
based finish from Dave Fuhr, I think it is, that is supposed to rival
Nitrocellulose in its ability to level out.  I think Jeff J is or will be
carrying it.  


Mark Potter
bases-loaded@juno.com
    
On Sat, 8 Sep 2001 08:58:22 -0400 "Farrell" <mfarrel2@tampabay.rr.com>
writes:
> 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
> 
>