10.0 mil (exclusive of liner). A flexible polyester laminated photoluminescent film coated with a permanent acrylic pressure-sensitive adhesive and backend with a 5 mil poly coated paper liner. The luminescent system used is nn-radioactive & non-toxic. Tape will glow in total darkness after exposure to artificial or natural light - it is fully charged within 30 minutes. Glows brightest the first 30 minutes after activation has ceased, but will remain clearly visible in a totally dark room to the night adapted eye for 6+ hours. This tape is printable. Used for identification of critical equipment controls, exit and directional signage - especially for escape routes and stairways, light switch covers, labesl, decals, novelties, sporting goods, trims, special effects, etc. Tape can be die-cut and thermo kiss-cut steel rule dies. 3" neutral paper core/carton.

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