Oxford Premium Spray Lacquer

[Greg Newell]

Terry,
    First and foremost, trust the response from Mark far more than this one from
me. Make sure that the size tip/nozzle and air cap are exactly what Mark posted
earlier. Orange peel will all but disappear. Is yours a conversion gun? I'm
happy with my turbine unit and know nothing about pressures required from a
compressor. I understand that at least a 5 HP compressor is needed to keep up
but, again, I will defer to Mark and other on this.
    Sanding through the orange peel is indeed very tough and time consuming, and
dangerous. I have been doing it for quite a while now trying to get a
satisfactory job done. Not fun at all!!!
    As for the large panels, I like to lean them against the wall vertically. I
turn them around every couple of coats waiting about 2 hrs or so for the last
coat to dry before I do. I haven't had any trouble yet. Even when I was
unknowingly spraying great gobs of liquid out of my wrongly orificed gun. It
was, however, prone to drip that way :-( I prefer not to hold the gun
horizontally if I can avoid it. I had such trouble with the soundboard because
it was prone to spit. Luckily OPSL flows quite well.
    Did I miss anything?

Cheers!

Greg

Farrell wrote:

> Well Mark, these couple posts have gotten me thinking that I need to get my
> gun (spray) out and take another stab at shooting something (if it doesn't
> work, maybe I'll take my 12-guage to it!). What kind of pressure are you
> running AT THE GUN? I would love to figure out a way to eliminate or
> drastically reduce the orange peel.
>
> When I wrote before that I had finally found sucess, I was referring to
> rubbing out a finish on that did not have witness lines. The orange peel can
> be sanded out, but man, that is a lot of work, and you always have the risk
> (reality) of sanding through in spots.
>
> 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. If you lay it horizontal, how long do you wait
> before flipping it over? If horizontal, do you put all your coats on one
> side, and then start coating the other side? Thanks.
>
> Terry Farrell
>
> ----- Original Message -----
> From: <bases-loaded@juno.com>
> To: <pianotech@ptg.org>
> Sent: Friday, September 07, 2001 7:28 AM
> Subject: Re: Oxford Premium Spray Lacquer
>
> Hi Greg -
>
> I use an Accuspray conversion gun (HVLP, but runs from a compressor), and
> have been using a .036 needle/nozzle set with a #7 air cap.  Little or no
> orange peel.
>
> Mark Potter
> bases-loaded@juno.com
>
> On Thu, 06 Sep 2001 22:51:02 -0400 Greg Newell <gnewell@ameritech.net>
> writes:
> > Greetings fellow listees,
> >     I'd like to relate an experience I've been having for far too
> > long.
> > I've been trying to refinish a piano and As Terry Farrell
> > experienced
> > too, there was a great deal of orange peel. Finally I have found the
> > correct solution (for me).
> >     It seems that I was using the needle, nozzle and air cap that
> > came
> > with my Accuspray turbine and gun unit. I was assured that this was
> > what
> > i needed for the task I was trying to perform. I just recently, on
> > the
> > advice of a different salesman who's company also sells these units,
> > changed all three parts to near the smallest orifice parts made for
> > this
> > gun. It seems that water based lacquer has very small solids or
> > something like that. Anyway it worked like a charm. I have been
> > trying
> > to achieve a solution based on other things like too high a
> > temperature
> > and adding retarder, too fast a delivery, too slow a delivery,
> > product
> > too thick (that one didn't seem right) and a host of other worries
> > involving spray conditions. The new gun parts changed everything and
> > all
> > things are now as they should be.
> >     I write this only to give a "heads up" to others who may be
> > spraying
> > water based for the first time. It seems a very high atomization
> > rate is
> > in order. Straighten that out before you begin and you will have
> > saved
> > yourself a great deal of time, believe me! Oh! and don't use steel
> > wool
> > with water based products either. Go ahead, ask me how I know.
> >
> > Best,
> > Greg
> >
> > --
> > Greg Newell
> > Greg's Piano Forté
> > 12970 Harlon Ave.
> > Lakewood, Ohio 44107
> > 216-226-3791
> > mailto:gnewell@ameritech.net
> >
> >
> >

--
Greg Newell
Greg's Piano Forté
12970 Harlon Ave.
Lakewood, Ohio 44107
216-226-3791
mailto:gnewell@ameritech.net