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Home > News > Product News > How to detect two way mirror a.....

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How to detect two way mirror and ordinary mirror?

  • Author:Bella
  • Source:www.sggglassmanufacturer.com
  • Release on:2016-09-26
Two way mirror is coated with a thin and almost-transparent layer of metal (usually aluminum). The result is a mirrored surface that reflects some light and is penetrated by the rest. 

But the two mirror is hard to detect after install.Finger test is a very popular way to determine whether a mirror is rear or not. However, it is flawed. 

Following is the method of finger test:


Place your finger on the mirror. if your reflection does no touch itself then there is a second layer of glass and you can be assured it is a real mirror. However, if your finger does touch the reflection directly there is a possibility that is a two-way mirror.



-----------------SUN GLOBAL GLASS from China