View previous topic :: View next topic |
Author |
Message |
jethro Member
Joined: 07 Apr 2007 Posts: 178
|
Posted: Sat Oct 08, 2016 5:11 am Post subject: ground substance possibilities? |
|
|
Wondering if anyone hax experimented with solids to be ground or to go in
as a ground additive?
thinking of more unusuas stuff....
like graphite or carbon disulfide,talc,quartz, or even highly colored iron or zink
compounds .... or even pure metals ground to micron size.......
possibly a thick paste mixed with linseed oil or just a dry rub ?
there used to be a product called "rub-n-buff" which was a paste loaded with
Various solid pigments. Used for picture frames.
might make an interesting starting point for coloring......
tim |
|
Back to top |
|
|
rs Member
Joined: 14 Jan 2009 Posts: 188 Location: Holland, Michigan
|
Posted: Sat Oct 08, 2016 11:23 am Post subject: |
|
|
This is a good question. I would love to duplicate the Pietro Guarneri yellow ground. It is subtle but beautiful. Maybe one day. _________________ Randall Shenefelt |
|
Back to top |
|
|
L P Reedy Super Member
Joined: 02 Apr 2009 Posts: 276 Location: Brevard, NC
|
Posted: Sat Oct 08, 2016 5:16 pm Post subject: |
|
|
Many of us have tried that and some still do. I don't think graphite would help, unless you want an opaque ground. Carbon disulfide is not a solid. It is a very volatile, toxic and highly flammable liquid. I've used ground glass and rouge, long ago. |
|
Back to top |
|
|
jethro Member
Joined: 07 Apr 2007 Posts: 178
|
Posted: Sat Oct 08, 2016 8:16 pm Post subject: |
|
|
Sorry -- big brain fart---- NOT carbon disulfide...
I ment molibidumum disulfide...... it may be opaque too ....
Was just noticing I had a rubber boat roller laying around that I never used.
It is a cylinder with a wheel on each end. Mount 2 of those on a platform
about 3 inches apart and drive 1 with a small slow motor--- then all you need is a suitably shaped jar and some ss balls.
Something like polishing rouge might be a possible component.....
I think its an ingredient of womens face powders.
There may be some off the shelf abrasives that might work as long as they are very fine ones......
I would think something tansparent or translucent would be on the possible list.... though I would think all the pigments in the commonly used oil paints are all opaque.....
Maybe I can whip up a cheap and dirty ball mill ......
T |
|
Back to top |
|
|
Chet Bishop Super Member
Joined: 23 Mar 2007 Posts: 678 Location: Forest Grove, Oregon
|
Posted: Wed Oct 12, 2016 10:41 pm Post subject: mineral ground |
|
|
Do you mean Molybdenum disulfide?
https://en.wikipedia.org/wiki/Molybdenum_disulfide
I use gypsum powder. I mix it with coffee while rubbing it in, but it dries chalk-white. Then, as I apply my sealer, it goes completely transparent.
So far, I like the results.
This the dry mineral ground, (on a 14" viola) before sanding off the excess:
This is the same plate after applying the sealer, but no varnish:
_________________ Chet Bishop
https://bluefiddles.com
https://fivestringfiddles.com
Last edited by Chet Bishop on Sat Oct 15, 2016 11:38 am; edited 2 times in total |
|
Back to top |
|
|
Chet Bishop Super Member
Joined: 23 Mar 2007 Posts: 678 Location: Forest Grove, Oregon
|
|
Back to top |
|
|
Dave Chandler Super Member
Joined: 31 Oct 2007 Posts: 691 Location: Mt Mitchell in North Carolina
|
Posted: Thu Oct 13, 2016 6:02 pm Post subject: |
|
|
Well, now, am I impressed!!! Very nice and just in time, I'm working on a cello I have to have varnished by VSA time. (Not that its going, just that I'm not coming back home till March and I want to leave it set and get good and hard before polishing/finishing up. _________________ Dave in the Blue Ridge
Southern Violin Association
"Success is the ability to go from one failure to the next with no loss of enthusiasm" Winston Churchill
"I took the road less travelled, and now I don't know where I am." Marco Polo |
|
Back to top |
|
|
Chet Bishop Super Member
Joined: 23 Mar 2007 Posts: 678 Location: Forest Grove, Oregon
|
Posted: Fri Oct 14, 2016 10:22 am Post subject: |
|
|
I had intended to have this set up and playing by now, but getting ready for winter has taken priority. 8 cords of firewood in, which will be enough for at least two years, I think, and I climbed up and cleaned the chimney, just in time for the (probably 10-day) rainstorm we are now having.
Helped my wife pick all the rest of the apple crop (which she is now drying...) and then the washing-machine went on the blink. New tub-seal time, I think. That varnish should be good and hard by the time I get to it.
Ah, well...sounds like life, doesn't it? _________________ Chet Bishop
https://bluefiddles.com
https://fivestringfiddles.com |
|
Back to top |
|
|
FiddleDoug Member
Joined: 08 Sep 2007 Posts: 227 Location: Hilton, NY
|
Posted: Fri Nov 25, 2016 11:07 am Post subject: Re: ground substance possibilities? |
|
|
jethro wrote: | Wondering if anyone hax experimented with solids to be ground or to go in
as a ground additive?
thinking of more unusuas stuff....
like graphite or carbon disulfide,talc,quartz, or even highly colored iron or zink
compounds .... or even pure metals ground to micron size.......
possibly a thick paste mixed with linseed oil or just a dry rub ?
there used to be a product called "rub-n-buff" which was a paste loaded with
Various solid pigments. Used for picture frames.
might make an interesting starting point for coloring......
tim |
I don't think that you want to use anything dark/black, and opaque in a ground. It would just make the fiddle look really dirty, and not enhance anything. _________________ Doug Wall
www.wallindependent.com |
|
Back to top |
|
|
Franciscus Member
Joined: 11 Jan 2014 Posts: 43 Location: Tuzla, Bosnia
|
Posted: Wed Dec 07, 2016 1:34 pm Post subject: |
|
|
Chet, can I ask what was the sealer for this violin? |
|
Back to top |
|
|
Chet Bishop Super Member
Joined: 23 Mar 2007 Posts: 678 Location: Forest Grove, Oregon
|
|
Back to top |
|
|
Franciscus Member
Joined: 11 Jan 2014 Posts: 43 Location: Tuzla, Bosnia
|
Posted: Thu Dec 08, 2016 1:58 am Post subject: |
|
|
Thank you very much, Chet, for the answer and for the links. I enjoyed reading. |
|
Back to top |
|
|
|