Jay does make very nice cloth...about 3 or 4 years ago, I used some of his in a FED NKVD I repaired and also a Zenit 3M. At that time, I was also experimenting with making cloth, and Jay and I traded samples of what we were making. Another fellow (now living in Japan) sent me a sample of some cloth he had found, and it turned out to be very nice and very uniform material (originally it was made in Singapore). Unfortunately it was no longer being produced, and the current inventory was all there was left. Fortunately, I was able to buy almost an entire roll of it. The ribbons I have are silk and about .0044" thick. For the last 2.5 years, I have been using the same pressure-sensitive adhesive that I use on the light seal foam I sell to attach the curtains and ribbons, and I've been extremely satisfied with it. If anybody would like to see the material, please send a self-addressed stamped envelope to me at:
Jon Goodman
9153 Loma Vista
Dallas, TX 75243
Please put a note in there about shutter cloth, so I will know it has nothing to do with light seal material. I'll send you enough to re-seal a Leica or clone type camera.
Jon