Search found 3 matches

by masonvl
Mon Jun 30, 2014 9:18 am
Forum: Secrets of the Lathe Trolls
Topic: Historical Lacquer Formulas
Replies: 9
Views: 2141

Re: Historical Lacquer Formulas

Mossboss - Thanks for the suggestions! Very close to treatments we're already considering! I'll let you know what we come up with.

piaptk - I wrote their business email, but haven't heard back. Maybe I'll write one or both of them individual if I don't hear back soon. Thanks.
by masonvl
Fri Jun 27, 2014 2:47 pm
Forum: Secrets of the Lathe Trolls
Topic: Historical Lacquer Formulas
Replies: 9
Views: 2141

Re: Historical Lacquer Formulas

Thanks Steve E. for the info! I found some info in US patent 2,607,699 granted to Audio Devices Inc. (makers of Audiodisc blanks), which lists the following formula: 33.3% 1/2 sec. nitrocellulose (1/2 sec. is a measure of viscosity) 18.0% wetting alcohol (ethanol or butanol - solvent) 28.2% ethyl ac...
by masonvl
Tue Jun 24, 2014 11:10 am
Forum: Secrets of the Lathe Trolls
Topic: Historical Lacquer Formulas
Replies: 9
Views: 2141

Historical Lacquer Formulas

Hi Lathetrolls, I'm working on an audio preservation program at the Northeast Document Conservation Center trying to get audio from broken and heavily degraded lacquer discs using an optical imaging platform called IRENE. You can read a bit more about the project on our blog here: http://nedcc.org/a...