Fetched a parcel from customs today. My close friend Eric (who lives in Boulder/Colorado) sent it to me, as a christmas present! Shipping took forever, so it only just arrived.
This is the rubber from McMaster Carr, a US company. They don't ship to overseas customers, therefore I never had any of the stuff before - except Bill Herriman's "Express Bands", that I tested with great results.
However, I like my bands way heavier, so I needed the raw material. This rubber is absolutely free from any chemicals and is supposed to outperform TB Gold by at least 5%.
I have one 10 yard roll in 0.02" thickness (0,5mm) and one 10 yard roll in 0.025 (0,64mm).
Can't wait to test it!