From: Patent Tactics, George Brock-Nannestad
Hello -brewster and others,
the main problems seem to be 1) the shellac-based mineral-filled material must
be made up using modern machinery. There is no doubt that this can be done,
only there will be a) a lot of experimenting with actual composition and hot
rollers, and b) this modern equipment that has been re-purposed must be cleaned
afterwards. Such things contribute heavily to cost. The raw materials are
2) modern pressing plants would probably be able to do the job after
experimentation with the temperature cycles. This contributes heavily to cost,
because the pressing machine cannot turn out revenue-creating vinyls at the
You need to metallize the original master, be it wax or lacquer. The latter
could follow the standard procedure for vinyl records, in particular
disco-singles (45 rpm 12"), because they already use very large grooves.
Wax is a different matter, but vacuum chambers are so large these days that the
initial metallization could probably be made professionally to specifications.
In other fora I have proposed that the Columbia laminated process be used. Here
we have pre-pregs with the fine shellac mixture laminated with a coarse center.
Not compressed wood filings like Edison -- it would need to have a mineral
filler as the original records. I am willing to cooperate un such projects. I
have cooperated on acoustic recording to disc.
From: Brewster Kahle <[log in to unmask]>
To: [log in to unmask]
Subject: [ARSCLIST] anyone still stamping shellac?
Date sent: Wed, 29 Aug 2018 08:24:03 -0700
Send reply to: Association for Recorded Sound Discussion List
<[log in to unmask]>
> I have a musician/composer friend that would like to make a "real" 78 of
> a recent composition... is anyone stamping shellac these days for such
> What I have seen from recent pressings in the great78 project seem to be
> more-or-less vinyl but turn at 78rpm-- this does not seem to qualify for
> this purpose.