Use plaster on a Diamond disc?
- Edisonfan
- Victor V
- Posts: 2137
- Joined: Wed Jan 07, 2009 4:37 pm
- Personal Text: Invention is 1% inspiration and 99% perspiration
- Location: Frederick Maryland
Use plaster on a Diamond disc?
Has any one used plaster to fill in the chips on a Diamond Disc?
-
- Victor Monarch Special
- Posts: 5473
- Joined: Mon Aug 24, 2009 3:08 pm
- Location: Southeast MI
Re: Use plaster on a Diamond disc?
I believe it would be way too soft and would be easily dug out by the stylus.
- Inigo
- Victor VI
- Posts: 3861
- Joined: Mon Dec 18, 2017 1:51 am
- Personal Text: Keep'em well oiled
- Location: Madrid, Spain
- Contact:
- Edisonfan
- Victor V
- Posts: 2137
- Joined: Wed Jan 07, 2009 4:37 pm
- Personal Text: Invention is 1% inspiration and 99% perspiration
- Location: Frederick Maryland
Re: Use plaster on a Diamond disc?
Thank you!
-
- Victor Monarch Special
- Posts: 5473
- Joined: Mon Aug 24, 2009 3:08 pm
- Location: Southeast MI
-
- Victor III
- Posts: 930
- Joined: Sun Nov 21, 2021 10:22 pm
Re: Use plaster on a Diamond disc?
I will say up front that I have absolutely no positive experience here with reconstructing chipped disks and none whatsoever with Edison disks or cylinders.
As for negative experience, I have experimented with building up damaged areas of standard 78s with Weldbond glue and reconstructing a path for the needle using a dissecting needle and a loupe. I have managed to get a temporarily playable disk, but one that does not wear well and thus becomes unplayable again. It also looks unsightly.
If I were to continue such experiments, I might consider trying a paste of fine slate dust and thick shellac.
http://www.delaboleslate.co.uk/buy-indu ... nerals.asp
https://www.leevalley.com/en-ca/shop/to ... 1-shellacs
No guarantees or warranties expressed or implied.
As for negative experience, I have experimented with building up damaged areas of standard 78s with Weldbond glue and reconstructing a path for the needle using a dissecting needle and a loupe. I have managed to get a temporarily playable disk, but one that does not wear well and thus becomes unplayable again. It also looks unsightly.
If I were to continue such experiments, I might consider trying a paste of fine slate dust and thick shellac.
http://www.delaboleslate.co.uk/buy-indu ... nerals.asp
https://www.leevalley.com/en-ca/shop/to ... 1-shellacs
No guarantees or warranties expressed or implied.
-
- Victor IV
- Posts: 1862
- Joined: Sun Mar 15, 2009 6:18 am
- Location: Luxembourg
Re: Use plaster on a Diamond disc?
If you mean filling up stress cracks in the playable area, I do not recommend doing anything. The crack is a little canyon with acute edges that develops when the plastic surface is pushed out by humidity. These edges act as knives on the diamond, and will eventually chip it. Any glue or other material you may add to fill the gap will be pushed away by the enormous pressure that the head exerts on the groove, and will expose again the edges. Therefore I dispose of all records with such cracks. For the chips in the rim area, I use a great product called Capt Tolley's (recommended by Soundgen).
- Edisonfan
- Victor V
- Posts: 2137
- Joined: Wed Jan 07, 2009 4:37 pm
- Personal Text: Invention is 1% inspiration and 99% perspiration
- Location: Frederick Maryland
Re: Use plaster on a Diamond disc?
It’s the chips on the rim, not cracks in the grooves.CarlosV wrote: ↑Tue Aug 22, 2023 2:18 pmIf you mean filling up stress cracks in the playable area, I do not recommend doing anything. The crack is a little canyon with acute edges that develops when the plastic surface is pushed out by humidity. These edges act as knives on the diamond, and will eventually chip it. Any glue or other material you may add to fill the gap will be pushed away by the enormous pressure that the head exerts on the groove, and will expose again the edges. Therefore I dispose of all records with such cracks. For the chips in the rim area, I use a great product called Capt Tolley's (recommended by Soundgen).
-
- Victor IV
- Posts: 1862
- Joined: Sun Mar 15, 2009 6:18 am
- Location: Luxembourg
Re: Use plaster on a Diamond disc?
OK, then try this Captain Tolley's, it's made to seal cracks in ships, it is very watery but settles in one hour or so and becomes very hard. I use it on shellac to stabilize cracks and on flaking rims of diamond discs.
- Inigo
- Victor VI
- Posts: 3861
- Joined: Mon Dec 18, 2017 1:51 am
- Personal Text: Keep'em well oiled
- Location: Madrid, Spain
- Contact: