.Sapphire Crystal 

Sapphire Crystal was widely used as Watch Covers Since 1970s . Thanks to sapphire's superior performance, It can resist scratch and impact easily.Sapphire rates 9 Moh's Hardness it is only behind diamond which measures 10. Of all of the glass, sapphire crystal is the least prone to shatter or be scratched. Contrary you ought to be more concerned that the watch may scratch another surface! The best way to tell mineral and sapphire glass apart is to try and scratch it, a stainless-steel knife or screwdriver will scratch mineral-glass but not sapphire crystal.

.Common Types We Are Producing:

        Double-Curved                 Plano-Curved.                       Plano  

Other Shapes:

  1.Circular; 2.Square; 3.Rectangular; 4.Irregular

  Customized Shapes also available, Dome, Circular,ETC... Please contact us if you have your own design. 

We are happy to help you finish your prototypes developing.

MOQ :

1.Common Shapes(Double-Curved,Plano-Curved,Plano) usually from 100pcs

2.Custom Shapes(Dome,Rings,Irregular) Usually from 20pcs, depends on shapes.

3.Stocked Products From 1pcs!

.Basic Info Of Sapphire Glass:

1.Excellent Moh's Hardness Upto 9H, Only Softer Than Diamond(10H), (Optical Glass 6~7)

2.Great Transmittance From 200nm~5000nm; AVG>85% @ Visible Light Freqency

3.No Attacked By Acid Or Alkalis, Only Attacked By HF At 300℃.

4.High Softening Point, Low Thermal Expansion.

5.Excellent Mechnical Properties.

We can also supply coating jobs, typical coating: AR/ Band Pass/ Cut off.