[Jukebox-list] Re: How to clean those records?/ Styrene

[David Breneman]

--- Dwaine Maggart <dwainem at gmail.com> wrote:

> I've got what is likely a very stupid question, that may well have
> been
> previously answered: How do you tell a Styrene 45 from a vinyl 45?

Not a stupid question, because it's hard to tell.  If you put
model glue on it, and it melts, it's polystyrene.  :-)

Seriously, there are a couple ways of telling, and it helps
to have known records of both types handy as "control samples."
Generally, a styrene record will "feel harder" and a vinyl
record will "feel softer".  Yeah, that's pretty subjective.
The outer edge of the styrene record will be sharper, and
it will be less flexible.  I find the best test is how it
"rings."  If you hold the record by the lead-in groove area
between your thumb and forefinger, and tap the opposite
edge with your finger nail, the styrene record will ring
brighter, at a higher frequency than the vinyl record,
which by comparison will emit more of a "thud" or "thump"
type sound.  Maybe Kyle has more or better methods since
he seems to be the one who's done the most research.


David Breneman         david_breneman at yahoo.com


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