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Posted: 17 Nov 2012 11:03 am
by J. Wilson
John, that is amazing! Very cool!!
Are you saying you used those cones in a dobro or am I misunderstanding? If so, how did they sound?
Where does one get paperstone? I would love to try to use this stuff...
Posted: 17 Nov 2012 11:06 am
by chris ivey
as alan said...don't breathe it.
i'd heard that asbestos was used in the manufacturing process.
Posted: 17 Nov 2012 2:25 pm
by John Morton
As you can see, these cones are for biscuit bridge and tricone instruments. They sound great, and the odd diameters are nice for body sizes other than the usual National/Dobro guitar or ukulele bodies.
Paperstone:
http://paperstoneproducts.com/
There's no asbestos in this material. If you read up on Bakelite you'll see that the various formulas differ mainly in the reinforcing material and use the same phenolic binder. Asbestos was used in the 1920's, but later it was other things: canvas, linen, Nylon, paper.
One reference says that "Bakelite is made of phenolic resin and wood flour". I think that describes an unreinforced variety which is probably good for molding but has low tensile strength.