Many custom job shops in the aerospace and military industries purchase barrier material converted as TUBING.  Tubing has ½” seals on each side.  Customers pull the material to their desired length and cut, insert their product, and seal both ends.  This practice enables to customer to utilize the same tubing for many different product lengths.   Tubing is typically manufactured on a 3” core with a length of 500 feet.  Shannon can make many different web widths and lengths to fit your machine, fixture and/or application.