A new source of Kevlar makes it possible to add all-Kevlar strings to my store.
Here are some sound files:
These recordings are made on my test bench, without any soundbox or effects
Closeup view of Kevlar strings
This is a bowed .40mm Kevlar string:
These are .62 and .82mm plucked Kevlar strings
This is a .85mm silk string
As you can hear, the Kevlar strings have good resonance considering that they are so resistant to wear, but silk will always be just a little better.
Now, here are some photos of Kevlar strings compared to silk strings with some microscopic details.
Closeups of strings:
This is a closeup, microscopic view of a single ply .55mm all silk string
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