Matte black PET 1. PET substrate is environmentally friendly material, 2. 3. thickness subtle matt finish of H-25 micron -250 micron range. The optical density of> 4.0 and above. A unique treatment process, there are compared with similar products have the following significant advantages: ü 1. Blackout excellent performance. > 4.0 can be completely shielded from light. ü 2. superior conductivity, antistatic strong. ü 3. Easy stamping. Therefore, less pressure on the mold, can improve tool life and reduce processing costs. ü 4. friction coefficient is very low, the use of the aperture, shutter group can effectively save power. Good dimensional stability at elevated temperatures, the second contraction of close to zero, after heating can still maintain excellent flatness of the product has been well used in lens shading, the phone keypad shading, audio equipment, tapes, special label printing and other industries