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« Reply #30 on: March 19, 2025, 01:01:14 PM » |
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Yes, I would have preferred something natural, but I am not aware of any natural resins with the right consistency that also harden well. Open for suggestions! Use man glue. Then nobody will ever touch your tone-arm  |
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Richard
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wenig watt
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« Reply #31 on: March 19, 2025, 01:18:23 PM » |
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Hmm, any translation I can think of is...interesting, especially since the internet offers no translation  With best regards Arndt |
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...damit das Denken die Richtung ändern kann.
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awkwardbydesign
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« Reply #32 on: March 19, 2025, 01:58:43 PM » |
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Yes, I would have preferred something natural, but I am not aware of any natural resins with the right consistency that also harden well. Open for suggestions!
What about Urushi varnish, as use by Japanese cartridge makers? https://www.sentomono.com/blog/what-is-urushi |
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awkwardbydesign
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« Reply #33 on: March 19, 2025, 02:02:02 PM » |
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Use man glue. Then nobody will ever touch your tone-arm I once searched for gun oil, to lubricate skateboard bearings. Most of the hits were...not what I was looking for! The same with leather trousers, for motorcycling. I tend to prefer them with seats in. |
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Richard.
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willbewill
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« Reply #34 on: March 19, 2025, 02:10:02 PM » |
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Yes, I would have preferred something natural, but I am not aware of any natural resins with the right consistency that also harden well. Open for suggestions!
Best regards
Arndt
Casein Paint is glue like and gives a good hard surface which even becomes water resistant in time. |
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malcolm ("You can't shine if you don't burn" - Kevin Ayers)  If what I'm hearing is colouration, then bring on the whole rainbow |
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wenig watt
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« Reply #35 on: March 19, 2025, 03:05:52 PM » |
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I know casein as curd mixed with lime for wall painting in historical buildings. The silicate paint I used is quite similar. But I have to do a few more tests first anyway to find out what the problem was. then I can also try casein. Thanks for the idea!
Best regards
Arndt
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...damit das Denken die Richtung ändern kann.
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wenig watt
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« Reply #36 on: March 19, 2025, 07:35:46 PM » |
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I had tried schellac but it was too liquid... maybe I can get it to the right consistency with a filler... also worth a try. With best regards Arndt |
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willbewill
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« Reply #37 on: March 19, 2025, 08:06:09 PM » |
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I know casein as curd mixed with lime for wall painting in historical buildings. The silicate paint I used is quite similar. But I have to do a few more tests first anyway to find out what the problem was. then I can also try casein. Thanks for the idea!
Best regards
Arndt
My career was in the conservation of Historic Buildings and Ancient Monuments Which is why I thought of casein and as you say it is usually mixed with slaked lime ( Calcium hydroxide ) to form a glue/paint. Cuttlefish bone is mainly made of Aragonite which is a natural form of calcium carbonate, therefore the casein lime mix will bond well with the aragonite and actually strengthen it. |
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malcolm ("You can't shine if you don't burn" - Kevin Ayers) If what I'm hearing is colouration, then bring on the whole rainbow |
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wenig watt
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« Reply #38 on: March 19, 2025, 10:14:34 PM » |
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Nice to meet someone with such knowledge! A friend of mine is a restorer and would have been my next port of call...
My suspicion is that the bone structure under the silicate paint layer was not pressure-resistant enough and the silicate paint itself was too soft. I could peel off parts like skin and underneath was dust from the collapsed bone structure. That's why the structure broke during sanding. Epoxy is hard enough. Do you think the casein structure is hard enough? Then the material would be perfect.
With best regards
Arndt
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willbewill
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« Reply #39 on: March 19, 2025, 10:43:02 PM » |
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I think it is worth doing some tests with casein on a piece of cuttlefish bone.
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malcolm ("You can't shine if you don't burn" - Kevin Ayers) If what I'm hearing is colouration, then bring on the whole rainbow |
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« Reply #40 on: March 20, 2025, 03:01:40 AM » |
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Amazing thing Arndt Thinking about you comments on sealing the arm. Malcolm's recommendation makes sense. Also you can mix your own schelac and maybe get the viscosity you need . I'll be watching for more. Cheers |
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Hello my name is Ed and I have a thermionic addiction
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wenig watt
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« Reply #41 on: March 20, 2025, 03:35:41 PM » |
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I had to think of the use of finely sieved Cuttlefishbone sanding dust in shellack...  Best regards Arndt |
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