9 mil (0.22mm). Laminated PVC 6 mil film. 2 mil over-lamination. Ribber Based Adhesive. Shiny surface. Adhesion/steel: 22 oz/in. Tensle strength: 33 lbs/in. Elongation: 200%. Resists oil, grease, solvents, moisture. Scuff resistant. For marking fire equipamentexits, hazardous areas, and first aid points. Meets government specification A-A-1689B Type II. 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