Low-Iron Glass versus Clear Glass

Standard Clear Glass

Standard clear glass isn't actually totally clear. You might notice a slight green tint to the glass or green edges. The green tint becomes even more prominent when looking at an angle and gets darker as glass thickness increases.

The green tint is due to the natural presence of iron oxide from elements such as sand, or from the cask or container in which the glass was melted.

Low-Iron Glass

Low iron glass, on the other hand, is completely clear. This is achieved by reducing the amount of iron in the molten glass formula, providing optimal, unobstructed views. In addition to unobstructed views, the edge work on low iron glass is much less green than standard clear glass.

Low iron glass has a visible light transmittance (VLT) of 91 percent in a standard quarter inch thick glass, while standard clear glass has an 83 percent VLT, making it the clear choice.


A difference you can see...

A picture is worth a thousand words. This side by side image perfectly depicts the difference between standard clear and low iron glass.


Done Fast... Done Right... Guaranteed

About Us

For over 40 years, Granite State Glass has been serving the glass needs of Northern New England. With twelve locations in New Hampshire and two in Vermont, Granite State Glass is dedicated to serving their customers' needs in a safe, timely and professional manner. Granite State Glass is the choice for people who understand the value of integrity and professionalism for their auto, home, or commercial glass needs. We look forward to the opportunity to earn your business.


Contact/Quote Form

Click or drag files to this area to upload. You can upload up to 3 files.

Six plus four equals? (please type the word)