Security Tamper Evident bags are made from a combination of polythene polymers which make them very strong durable and stretchy. The materials used are of heavy duty and high resistance to tear and puncture, and both sides of the bags are heat-sealed side seams with a "VOID" tape attached to the opening of the bag.
The bags are self-sealing after peeling off the release liner to attached the glue with the "VOID" tapes. The adhesive closure is extremely strong and if anyone tried to force opening, it will leaves an obvious trace and the words "VOID" will be appeared.
The unique tape closure is fully resistant to heat, freon, dry ice and other temperature controlling agents which can be used to open other types of bags without leaving any evidence of tampering.
Security bags have a series of dual sequential numbers and barcodes, both on the bag itself and on the tear off receipt, which used for recording purposes. An optional pouch can be welded for putting deposit notes.