RE: urushi

From: Mark Millonas (millonas@email.arc.nasa.gov)
Date: Thu Nov 20 2003 - 16:30:02 PST


>
>Mark,
>
>Thanks for the great information...sounds pretty simple. I'm now
>wondering if you have a method of using shellac with some added
>"thickener" to taper the bore of a shak. Or perhaps you taper it with
>plaster and then coat it with the tinted shellac?
>~carlos

I got some epoxy of putty consistency (available and nearly every hardware
store) that I was going to try for that, but then you could use
a thin epoxy coating for the final surface as well. I think that is pretty
close to
some of the things Monty uses in certain cases. I know he gave his recipe
here a while back.

I don't know if shellac will
bind to epoxy, but I'm guessing it will. But then you could use just use
red paint as well, as Monty
has also suggested. It's hard to get cheaper than tinted
shellac. Otherwise I make no special claims
about it. It looks beautiful to me.

IAt 03:58 PM 11/20/2003 -0800, you wrote:

>-----Original Message-----
>From: Mark Millonas [mailto:millonas@email.arc.nasa.gov]
>Sent: Thursday, November 20, 2003 3:39 PM
>To: Shakuhachi@communication.ucsd.edu
>Subject: RE: urushi
>
>
> >
> >Mark,
> >Not to rub it in Gene's face...but, what is the imitation urushi you
> >refer to here?
>
>Naw, I don't think gene needs anything more rubbed in his face
>right now, if you know what you mean....
>this rib poking reminds me:
>a colleague of mine from Sweden once used poison oak to wipe himself the
>first
>time he went backpacking in New Mexico - he ended up in the hospital,
>but
>I think the humiliation was almost as bad as the pain....but I
>digress...
>
>---------------------------------
>tinted shellac faux-urushi
>
>1. Go to your local hardware store and buy some shellac - clear
>or amber may not make a difference in this case, but I used clear.
>Shellac is non-toxic, and even smells "nice". (however I'm just
>guessing
>that if you are a recovering alcoholic you might want to avoid this
>smell)
>You can "tint" shellac, and if you go to the paint mixing counter they
>can
>tell you the maximum about of
>tint you can add to the shellac. This is much less than, say, the
>percent
>of color you can add to paint, but I digress.
>
>2. Go to their color charts and select
>the color you would like, dark red, bright red, black, florescent green,
>etc.
>
>3. The tell them you want to add that color to the shellac to the
>maximum
>recommended concentration.
>They will usually have to mix two or more pigments to get that color,
>and
>they have a computer program
>that they use to figure things out. Its exactly the same process as
>mixing
>paint, except you use shellac.
>At this point you can either make sure your pigments are non-toxic, or
>if
>you are at all worried
>pick up another can of plain shellac to use as a last coat or two.
>
>4. The final result will look something like paint in the can. *Be
>sure
>to shake or stir well before applications*. I like to
>use a squirt bottle and it apply a la Monte Levenson's recommendations
>in
>his booklet, but
>you may have your own favorite method. The shellac is very fluid so the
>
>"pour down the rotating bore" method works perfectly.
>
>5. The shellac will dry in 15 minutes, but it's probably best to wait
>an
>hour or two between coats. I sand with 200 grade
>paper between the first few coats, and then switch to an even finer
>grade
>as a hard shiny, opaque finish
>is achieved. If your trying to actually fill in some contours you might
>
>want to be more aggressive initially.
>The first few coats will not look watery, but after 3-4 coats it will be
>
>shiny, solid red (or whatever)
>like the color you chose. After about 10 coats, depending on how
>obsessive
>you are, you will have a beautiful
>hard, shiny, glass-like (and tough) bore finish. I guessing if you are
>going for a less finished, less lacquered
>look you could just apply a few coats.
>
>You can get a quart of this stuff for less than $10, you don't have to
>search the world over, you don't
>need to know the secret password so the cryptic little old lady behind
>the
>counter can slip you some on the sly,
>and you don't have to go into toxic shock. Also, you can use the
>instrument a few hours after you apply the last coat.
>Its not urushi, its *nothing special*.
>
>There are of course variations and substitutions you make on this. The
>advantages of this one are that it is cheap, non-toxic, quick drying,
>and
>you can
>find the basic ingredients anywhere.
>
>cheers,
>
>marko
>
>
>
>
>
>
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