0.9 mil Metalized Polyester Film with briliant, vibrant mirror-like finish; coated with an aggressive long lasting acrylic adhesive system. Tapes have excellent chemical and thermal stability. Silver can be qualified to meetFederal Specification # L-T-100B, Type II. 3" plastic core.

Applications:
Reflective shielding;inductrial & graphic arts; decorative trim, automotive trim, nameplates, electric appliances, advertising displays; suitable for micro film splicing; also can be used in photo sensing applications to detect splices and to facilitate roll changeovers recommend test sampling first.

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