Solar transport belts are made from the same type of material as release sheets. They can however be black in colour which signifies they have a special antistatic coating. Techbelt manufactures and supplies lots of these belts for the German market.
We make a lot of Transport belts which all tend to have special loops at both ends. Like the release sheets we line the loops with PTFE Kevlar / Aramid for added life and protection.
We use a slightly heavier grade material for this which is Techbelt AS-37-NA. AS means anti -static. 37 means it is 0.37mm thick and NA means no adhesive.
A common machine that uses these is the ICOLAM. Models such as the ICOLAM 44/23 MEIER, ICOLAM 38/21 and ICOLAM 36/21 all use this style of non-stick sheet.