I'm wondering if there is a source for what used to be called
"Schulz cloth" (a.k.a. Schultz, Shulz, "silk" cloth, take your pick).
This seems to be a Neoprene coated, very-fine weave material with a
square cross-hatch pattern on the front and un-patterned on the back
(see photo).  It is 0.004" thick.  I am down to my last 1/4 square
foot and would love to buy more.

Does anybody have a source or surplus amount they would consider
selling?  My remaining piece is probably 20+ years old and seems
immortal, absolutely air-tight and is as supple as any material I have
ever used -- it just does not take a set.

John Grant

 [ Schulz cloth sample, front and back.
 [ http://www.mmdigest.com/Attachments/15/08/19/150819_221151_Schultz%20Cloth.JPG