black glass mirror  is made of high quality black float glass with aluminum coating or silver coating.

1- Aluminum Coated Black Tinted Mirror

Aluminum coated black tinted mirror, is produced through vacuum coating, I.E, let the melt aluminum spash on the black float glass surface in the vacuum chamber, and then coated with two layers of protective paint. Quality mirrors are coated with double paint. It's also called vacuum mirror, copper-free mirror, aluminized mirror, etc.  

 2- Silver Coated Black Tinted Mirror

Silver coated black tinted mirror, is a sheet of black float glass with silver coating on its back in order to achieve images by reflection. A silver mirror is produced through a trinal processing work by coating silver film, copper film and two layers of waterproof paint on the back surface float glass. It's also called silvered glass silver coated glass, etc.

 Thickness: 4MM to 8mm;

 Standard sizes: 1830 x 1220mm, 1830 x 2440mm. 2134 x 3050mm, 

        2134  x 3300mm. 2250 x 3210mm, 2250 x 3300mm, 2440 x 3300mm,

        2440 x 3660mm;