3M sandpaper

[Farrell]

Greg, as Mark Potter indicated, the one or two week wait is only suggested
for final rub-out. Sanding between coats, if needed, can be done after an
hour or two. Sanding between coats is only needed if you have some type of
poor surface that you need to level. If it is going on nice and smooth (or
something close to it), there is no need to sand between coats if coats are
applied within 24 hours (or is it 12 hours?).

I put twelve coats on in two days on my last piano.

----- Original Message -----
From: "Greg Newell" <gnewell@ameritech.net>
To: <pianotech@ptg.org>
Sent: Wednesday, May 16, 2001 8:23 PM
Subject: Re: 3M sandpaper


Colin,
    Thank you for this. I'm curious as to what they expect you to do with
this
product. If one puts on at least 7 coats or more (isn't that somewhat
standard?)
than it could take weeks just to spray it, no? Maybe nitro celulose is still
the
way to go.

Greg

Colin Kenny wrote:

> Hello,
> I spoke with a technician at target coatings not too long ago, and he
> recommended waiting one week before wet sanding, and two weeks before dry
> sanding the oxford premium spray lacquer.  For those who don't know, this
is
> a water based product.  He said that waiting two weeks and dry sanding is
> ideal.  Hope this helps.
> Colin Kenny
>
> ----- Original Message -----
> From: Greg Newell <gnewell@ameritech.net>
> To: Pianotech forum <pianotech@ptg.org>; Master Piano Tech
> <mpt@talklist.com>; College and University Technicians <caut@ptg.org>
> Sent: Tuesday, May 15, 2001 11:28 PM
> Subject: 3M sandpaper
>
> > Dear Lists,
> >     Not too terribly recently I read of the benefits of 3M's fre-cut
> > gold sand paper. I recently bought some from Jeff Jewitt who told me to
> > use it between coats of Oxford Premium spray lacquer. I found that it
> > began to remove some material and that material then balled up and began
> > to cut grooves in my new soundboard finish! YIKES! I waited at least 24
> > hrs before sanding between coats. Should i have waited longer? Is there
> > a better way to use this highly acclaimed product? Are there different
> > uses for this paper rather than between coats? I assume that it is used
> > dry as it is a paper backing. Is that right? All was saved with a
> > scotchbrite pad and some careful rubbing. I applied the decal and am now
> > ready at my next opportunity to spray over it. So far it looks great!
> >
> > 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