H.R.Fisher Posted September 19, 2022 Report Share Posted September 19, 2022 Still exploring options to darken violins, I don't like to pile on colored varnish. Has anyone had experience with this product? Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 I'm the manufacturer of Dr. JG McIntosh's Tintura Veneziana, so full disclosure on that. As I've mentioned other places on the forum, it was developed as a way to achieve the results of the famed Roubo primer, also known as "horse sauce", but without the dung and urine. There are quite a number of people using it, so I hope some will chime in here. Here's a post from my Instagram, showing cello specialist Kile Hill of Oregon using it: https://www.instagram.com/p/CYcgGoUPo9S/?igshid=YmMyMTA2M2Y= Lots of other posts on that Instagram page that I hope will be of help to anyone considering trying the Tintura or my other products. Thanks for your interest! J Quote Link to comment Share on other sites More sharing options...
jacobsaunders Posted September 19, 2022 Report Share Posted September 19, 2022 23 minutes ago, JacksonMaberry said: I'm the manufacturer of Dr. JG McIntosh's Tintura Veneziana, so full disclosure on that. As I've mentioned other places on the forum, it was developed as a way to achieve the results of the famed Roubo primer, also known as "horse sauce", but without the dung and urine. So you manufacture horse shit, or have I misunderstood? Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 11 minutes ago, jacobsaunders said: So you manufacture horse shit, or have I misunderstood? Only when I need to wind someone up! Haha! I was too disgusted by the traditional Robe recipe, so a colleague and I devised the Tintura as a functional analogue that doesn't involve such unpleasant ingredients. Quote Link to comment Share on other sites More sharing options...
charliemaine Posted September 19, 2022 Report Share Posted September 19, 2022 Does the product contain any oxidizing agents? The Roubo recipe is basically saltpeter with some organic coloring. That cello top looks very nice. Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 4 minutes ago, charliemaine said: Does the product contain any oxidizing agents? The Roubo recipe is basically saltpeter with some organic coloring. That cello top looks very nice. The results of the Roubo method create a dizzyingly complex chemical soup, which as you note includes nitrites and nitrates. So while nitrogen salt oxidation is the lions share of how Roubo primer works, it's not the only thing going on. The Tintura is just a lab made version of the same thing. Quote Link to comment Share on other sites More sharing options...
David Burgess Posted September 19, 2022 Report Share Posted September 19, 2022 Who is Dr. JG McIntosh, and does he actually have a Doctor's degree, or is he guilty of "title misappropriation"? Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 1 minute ago, David Burgess said: Who is Dr. JG McIntosh, and does he actually have a Doctor's degree, or is he guilty of "title misappropriation"? JG McIntosh was a British chemist known mostly for his three volume work on oils and varnishes, and since his books were so helpful to me in learning how to make good, stable rosinate varnishes, I named the company after him out of respect. Quote Link to comment Share on other sites More sharing options...
David Burgess Posted September 19, 2022 Report Share Posted September 19, 2022 OK. So it would it be appropriate to insert a label in my violins reading, "Master Hans Weisshaar"? I also received a lot of information and personal encouragement from Charles Beare. And a lot of inspiration from the instruments of Stradivari. So instead of using my real name, maybe the label should read... Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 David, you have my phone number. If you have advice or criticism, I invite you again to call me and I'd be happy to listen. My name is also on the wood finishing product labels - if you actually cared about this and weren't just badgering me for your own amusement, you could have learned that with a Google search. It has always been common to name a business after someone who inspired it - Tesla is a very visible example today. Perhaps you can call Elon and let him know that you insist he rebrand his cars "Musk". Seriously, give me a call. You can let me have it one to one, since it's important to you. But if you're more interested in the thrill of being seen, then by all means carry on. Quote Link to comment Share on other sites More sharing options...
charliemaine Posted September 19, 2022 Report Share Posted September 19, 2022 2 hours ago, JacksonMaberry said: The results of the Roubo method create a dizzyingly complex chemical soup, which as you note includes nitrites and nitrates. So while nitrogen salt oxidation is the lions share of how Roubo primer works, it's not the only thing going on. The Tintura is just a lab made version of the same thing. So that sounds like a yes to nitrates/nitrites or some other oxidizer in the product...Thanks for the disclosure. Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 19, 2022 Report Share Posted September 19, 2022 Just now, charliemaine said: So that sounds like a yes to nitrates/nitrites or some other oxidizer in the product...Thanks. Happy to answer any questions! Quote Link to comment Share on other sites More sharing options...
David Burgess Posted September 20, 2022 Report Share Posted September 20, 2022 22 hours ago, JacksonMaberry said: But if you're more interested in the thrill of being seen, then by all means carry on. Uhm, take about ten steps back in the direction of reality, dude. Which of us has been humping their own for-sale products more here? Me or you? Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 20, 2022 Report Share Posted September 20, 2022 4 minutes ago, David Burgess said: Uhm, take about ten steps back in the direction of reality, dude. Which of us has been humping their own for-sale products more here? Me or you? Whatever pleases you, Maestro. Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted September 20, 2022 Report Share Posted September 20, 2022 On 9/19/2022 at 5:08 AM, H.R.Fisher said: Still exploring options to darken violins, I don't like to pile on colored varnish. Has anyone had experience with this product? It’s worked well for me. Quote Link to comment Share on other sites More sharing options...
H.R.Fisher Posted September 20, 2022 Author Report Share Posted September 20, 2022 That looks very nice! The product is sold in 2 oz bottles and is very expensive,how much did you use for one violin? Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted September 20, 2022 Report Share Posted September 20, 2022 7 minutes ago, H.R.Fisher said: That looks very nice! The product is sold in 2 oz bottles and is very expensive,how much did you use for one violin? I think it was a little bit over half a bottle. Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted September 20, 2022 Report Share Posted September 20, 2022 My two cents is that on bare, untanned wood it’s kind of disappointing, but on something that’s been tanned for a little while it does some really nice, ’interesting things. Quote Link to comment Share on other sites More sharing options...
JacksonMaberry Posted September 20, 2022 Report Share Posted September 20, 2022 Thanks very much for the photo and your thoughts, AD. Quote Link to comment Share on other sites More sharing options...
Nick Allen Posted September 22, 2022 Report Share Posted September 22, 2022 On 9/20/2022 at 4:10 PM, Advocatus Diaboli said: My two cents is that on bare, untanned wood it’s kind of disappointing, but on something that’s been tanned for a little while it does some really nice, ’interesting things. Basically the same case with just saltpeter. You have to tan it for a while before it does anything nice. Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted September 22, 2022 Report Share Posted September 22, 2022 58 minutes ago, Nick Allen said: Basically the same case with just saltpeter. You have to tan it for a while before it does anything nice. Exactly. I haven’t found pure saltpeter to be very complex when I’ve played with it before, though. Quote Link to comment Share on other sites More sharing options...
Nick Allen Posted September 22, 2022 Report Share Posted September 22, 2022 24 minutes ago, Advocatus Diaboli said: Exactly. I haven’t found pure saltpeter to be very complex when I’ve played with it before, though. It's not bad. But on its own it's not very spectacular. But most other chemical treatments I find make the wood too "hot" looking as a base color. And if not hot they end up green-grey, like with ammonia or dichromate, which I don't condone. Finding something to give the perfect not-too-hot-not-too-cool look within a reasonable amount of time, that also adds to the look of the wood, seems to be the quest. Quote Link to comment Share on other sites More sharing options...
Michael Szyper Posted September 22, 2022 Report Share Posted September 22, 2022 You can adjust the tint of nitra/i-tes by catechou towards red and tannin rather greenish/gray. Quote Link to comment Share on other sites More sharing options...
Advocatus Diaboli Posted September 22, 2022 Report Share Posted September 22, 2022 33 minutes ago, Michael Szyper said: You can adjust the tint of nitra/i-tes by catechou towards red and tannin rather greenish/gray. Catechou? Quote Link to comment Share on other sites More sharing options...
John Harte Posted September 22, 2022 Report Share Posted September 22, 2022 11 minutes ago, Advocatus Diaboli said: Catechou? Probably catechu. Quote Link to comment Share on other sites More sharing options...
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