2.5 mil clay coated Kraft (CCK) liner which has been silicone coated one side to give a controlled release.  This paper has a hard, smooth caliper providing a consistent surface.  Withstands all conventional processing including die-cutting, butt cutting, line scoring, and dispensing due to its high internal strength.
Basis Weight: 40.5 lbs.

Release Range = 10-50 grams per inch (Tesa Tape 7475)
Tensile Stength (Tappi T-494)
  MD = 30 lbs./in
  CD = 20 lbs./in

Elemendorf (Tappi T-414)
  Tear MD = 32 grams
  Tear CD = 34 grams