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How much do you know about the low iron glass?

  • Author:Brenda
  • Source:www.sggglassmanufactuer.com
  • Release on :2017-08-26
The low iron glass is a kind of glass with super transparency. It looks like crystal because of its low content of iron and impurity. Thus, low iron glass is also called ultra clear glass, extra clear glass, crystal glass, super clear glass, extra transparent glass, etc. The edge of low iron glass looks very shallow blue.

Compared with ordinary clear glass, it has some advantages as below:
1.Because of the low content of iron and impurity, low iron glass has lower spontaneous cracking rate after being tempered.

2.Ultra clear glass absorbs less green bands in visible light.

3.Extra clear glass has high visible light transmittance even more than 91.5%, with crystal clear feature.

4.Low iron clear glass has lower ultraviolet transmittance than normal clear glass. It absorbs less ultraviolet bands. So that it’s suitable to be used as showcase and it can slow down the fading and aging of exhibits in the showcases.


The thickness of low iron float glass can be 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 19mm. The ultra clear glass cut to sizes are also available. 2mm ultra clear glass is usually used in photo frames or machine, 3mm extra clear glass is usually used as solar glass. 8mm ultra clear float glass, 10mm extra clear glass, 12mm ultra clear float glass, 15mm ultra clear glass, 19mm crystal glass are very popular to be made of ultra clear tempered glass, low iron printing glass. Low iron glass is also popular to be made of ultra clear laminated glass, extra clear insulated glass and etc..


If you are interested in more information about glass, welcome to visit our website: www.sggglassmanufactuer.com


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