Power Lines, Inc. has over 5 decades experience in supplying belts and other items for the print and direct mail processing industries. Our heat resistant inkjet labeling belts are OEM quality and made to withstand temperatures up to 500 degrees Fahrenheit. We offer 2 styles of belting material. WHITE: This is a silicone/fiberglass material .042″ thick and spliced endless. These belts are uni-directional and are marked to indicate the running direction. RED: These belts are made with a spliced base belt and then are covered with a cast silicone coating resulting in a smooth cover with no discernible difference in thickness throughout the length of the belts.This produces a bi-directional belt that can be run in either direction with no loss of performance.