It's a advanced version of silver mirror.
With non-copper film process and two layers of water proof paint which prevents heavy metal contamination with copper and lead by using non-lead materials.
What's more, the copper free silver mirror can last longer than the ordinary silver mirror because the copper will accelerate the mirror to be eroded.
Features of the mirror:
1)Clear and exact images.
2)No distortion
3)The backing paint resists acid and moisture.
4)Friendly to environmetal
5)Thickness: 1.1mm to 8 mm