7 year durability. 5.5 mil (0.14mm). Enclosed Lens Retroreflective Urethane Film coated whith a permanent Acrylic Adhesive. 94# release liner. Meets or exceeds requirements of Federal Specification LS-300C (Reflectivity 1, Class 1) FP-85 (Type II), and ASTM D4956-94 (Type 1). Primarily designed for permanent & temporary traffic signage.

Applications:
Application surface should be flat (not recommended forunpainted stainless steelsurface). Product may be screen printed, guillotine cut, die-cut, or thermal kiss-cut (300ºF to 325ºF to 1-2 seconds). 3" neutral paper core.

Mill:

• A "mil" is a unit of thickness equal to one thousandth of an inch. 
• To convert mil to inches take mil & divide by 1000. 
• Thus, a 2 mil bag would be .002 inches thick.
• Example: Ex: 2 mil/1000 =.002 inches