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About Goran74

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  1. I have no words to thank you for your interest and for your time. That was some very valuable information for me. I use Greek resin too and I will seriously think about using painter's thinner-drier. It was proposed by a painter friend I had but I never tried it.
  2. Thanks for your question. I applied a thin coat with a brush, but not diluted. I applied diluted with turpentine and it dries fast. I don't know if the sealer is proper, because maybe the colophony over colophony delays process. I used turpentine till now. What other choices do I have? Thank you a lot
  3. Thank you for your response. I have the Italian text and the translation, but I made a small variation with less mastic and more colophony. I read also with interest your numerous posts about this receipt. I found that you use the same diluted varnish as a sealer in a post, but when I did the same, the wood was soaking unequally to the wood (the known effect when oil goes to wood). So, do y have any suggestion for the sealer? Again thank you Thank you Jim. I do not have UV, I just use the natural light, tea etc. So, it seems to take a lot of time to dry.
  4. Hello. I made some Colophony - Marciana's varnish as proposed "Giovanni" (and I thank him a lot) member here in maestronet (in an older post I had) with the following parts: 3 parts linseed oil (you can see the link for the oil I used - Winsor). Then 2 parts of colophony and 1 part mastic. I used it on different sealers: 1) shellac 2) colophony very diluted in alcohol. I have not tested it with plaster yet. When I dilute the varnish with turpentine (again Winsor) it dries in some hours very nice. So, do I have to use it diluted with turpentine or something goes wrong? Also, does anyone know if the sealer of diluted colophony-alcohol cracks after time? Thank you very much all for your time
  5. Hello again. I made the receipt. Cooked about an hour. The right is not diluted and the left is diluted with turpentine. I like a lot the result. The not diluted dried in less than 48 hours. With turpetine dries a lot faster. I am not still sure if the diluted works well as sealer and does not let pet spots, if wood absorb more than it should. Also I want to test the color that Mr Giovanni proposed. I bought it and I am planning to mix it with diluted varnish.
  6. Thank you so much for your answers and your time. Is there any problem if I use NaNo2 before applying the varnish? I like a lot your suggestion 3:2:1 ratio. My experiments with chemicals have not good results. Basically I see colours like green or pink that I cannot recommend for quality instrument.
  7. Thank you very much for the proposal. I have already read Hargrave's articles on his site. Very informational for varnish too. Thank you for your opinion. I have not read Gregg's article but this procedure sounds good. Maybe I will test this kind of sealer. Thank you Advocatus. I will try it straight and without sealer to some test blocks I have. Do you know if color added or can be added to Marciana's receipt? And If colour can be added what would be the best? Powder (which I used effectively earlier) or artist's colors?
  8. Since now I use mostly making spirit varnish. This time I would like to try for the first time the Marciana's varnish (2 parts oil, one part colophony, one part mastic). I make some experiments on some wood pieces. I used first tea and let in the light for some days since I do not have UV box. What sealer should I use before the varnish? I read some topics here but the subject is unclear. For the spirit varnish, I use uncolored shellac. But what now? Also, if I do not use the " ground burnt alum" as the original recipe describes, does it change something dramatically in the varnish? Thank you
  9. Thank you very much. I have that book in english translation. I decided to go on with Amati 's Strad poster that proposed Urban Luthier. I had already that poster.
  10. I was studying the Amati's violin that suggested Urban Luthier. The ribs are not so high. Also at the research "the violin and its reduced sizes", ribs are 30mm. But if you say that height matters, I will keep it in mind. Thank you
  11. Thank you for answer. I have the one Amati poster but it is 4/4.
  12. Many thanks for the information.
  13. Thank you. You know more for sure and I have little experience. I read again about this method. Does it have success? (I have strad posters)
  14. Hello. I am planning to make a 7/8 violin. Are there any available plans to buy? For example 7/8 from Amati or Stradivari's King Maximillian? I was searching a lot on the internet but without success. Of course there are some big editions of master makers of tge past but prices are too high for me. Thank you a lot.
  15. Thank you Peter. As I can see, in this process is used a tablet, an application (which apk?), and the method is: throwing the bridge from a standard height on a hard surface and recording the frequencies?