joerobson

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About joerobson

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  • Birthday 06/18/1950

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    http://www.violinvarnish.com
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    Trumansburg, NY

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  1. Z, My approach to antiquing..think of what you want to do....and do about 10% of it and MAYBE you haven't done too much. There are additive and subtractive methods for antiquing. I second Michael's thought on attacking a fully varnished instrument. Without a lot of experience there's the danger of rampant enthusiasm. Go slow. Have fun. on we go, Joe
  2. Steel wool has oil in it which may be the issue
  3. A white cello I have owned for years. Recently it received a good bass bar and some regraguation. It has the WILDEST poplar back. Hopefully I'll get to the white work soon....then off to Varnish Land. on we go, Joe
  4. Hey Jim, Brush soap is almost impossible to get completely out of the brush. It hides up in the ferrule where it dries and becomes particles of various sizes. When you use the "clean" brush these particles work there way down to the tip. When deposited on the surface, varnish won't stick to them. Tiny particles will show as bubbles. Larger particles will cause fish eye. Very large particles will cause those worm tracks you are seeing. If you skip the turpentine wash, let the brush sit in alcohol overnight. Then re-rinse in alcohol making sure it gets into the ferrule. Can you use naphtha as a sub for turpentine? To address the original question....it is nearly impossible to control cooking temperature in such a small batch. on we go, Joe
  5. And let's add: do not use "brush soap" to clean up your brushes. First clean with acetone. then rinse in turpentine, then rinse in alcohol. Let the brush dry and do the "flick it" test. on we go, Joe
  6. Due to the virus related school closings set by the Chicago Board of Education, our varnish workshop has been postponed. CSVM has generously given us an alternative week: August 15th - 22nd. PM or email me [order@violinvarnish.com] if you have questions. on we go, Joe
  7. Registration for the varnish workshop at Learning Trade Secrets closes on Monday evening. If you have any questions give me a call at 607 387 9280. https://www.learningtradesecrets.com/workshops/fundamentals-oil-varnishing on we go, Joe
  8. Well said. We speak of this process as as "oxidation of the wood". I think of it as a controlled burn. Not always predictable or controllable as all burning is. on we go, Joe
  9. David, I am a poster child for CBD...does that make Strad reincarnated?
  10. Julian I would drop the spike oil and add a few drops of castor oil instead. Then a bit stiffer brush. on we go, Joe
  11. Have we mentioned Terry Carlin in Cleveland? Perhaps worth noting...our crew at the Varnish Workshop is usually a third women.
  12. Not only her...and yourself but also Helene Cosette and Michelle Ashley.
  13. If you are near Cleveland, Terry Carlin. Otherwise...where in Ohio?
  14. I am pleased to share that our "Practical and Artistic Violin Varnish Workshop" for 2020 , held in cooperation with the Chicago School of Violin Making, will be from April 25th - May 2nd this year. We look forward to a great crew as usual! Information on the program is attached. Thanks and on we go, Joe Violin Varnish Workshops 2020.doc information 2020.doc
  15. A slight and [I think] natural rounding occurs when the white wood and varnishes surface are polished using dry brushes.