3M sandpaper

[Greg Newell]

Terry,
    I used it thinned after the Accuspray 230 had been running for a while so
the turbine was somewhat heated. As heated as they get anyway. I thinned it
with water about 1:4 water to PSL. It did orange peel something awful. I then
tried to change the delivery volume with straight product and had a better
spray the second time. Still not what I would have liked but a little better.
My third attempt with straight PSL (after which I waited and sanded the next
evening) I opened the in line valve and put it on heavier with no orange peel
at all.
    I think it likes a heavy air flow with not too much product in the mix.
That was the last thing that worked for my system anyway. I tried to sand out
the bumps the next evening and that's when I had the trouble with the product
balling up and cutting into the finish with the fre-cut gold. I ended up
knocking it down with the Scotchbrite pad and then had a flat surface to
attach the decal to. I'm now trying to clean up a bit to eliminate more of
those little floatie things that always end up in the finish. I hope to spray
again tonight and maybe again tomorrow and then sand a little this weekend
before more coats next week. That's the plan Stan (Simon and Garfunkel).
    Did this answer your questions?

Greg

Farrell wrote:

> Sounds unusual Greg. I day dry then sanding has worked just fine for me. I
> use nothing but the fre-cut gold and have had complete sucess with it.
>
> Now, on the other hand, PSL. What have you sprayed and what kind of luck
> have you had. What kind of equipment have you used. Have you thinned?
> Atmospheric conditions? Please provide all details as I am still trying to
> work out an orange peel problem.
>
> ----- 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: Wednesday, May 16, 2001 12:28 AM
> 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