I have a number of 78s that are not shellac or at least do not appear to be. In many cases (depending on brand) their labels indicate they are made of Metrolite I've read that Mercury used "Merco Plastic" MGM used Mercolite and Savoy used Sav-o-Flex.
Do these have the same resilience as my shellac 78s? I am concerned that normal play will wear them more quickly. If they are made of a a PVC/ENR blend that is probably the case. -- Thatcher Metrolite, Merco Plastic, and Sav-o-flex! > > > > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org

