Window Tint

1961 Bubble Boy

Well Known Member
I always found how window glass is made and tinted is pretty cool. Found this site which explains how the tint is produced and has links explaining how the glass is made in the first place.

https://www.pilkington.com/en/us/architects/glass-information/coated-and-tinted-glass

Pilkington by the way is the glass maker who stamped LOF on the windows which may look familiar to some of us.

A couple of other nuggets

To bend the glass to say the shape of a windshield, it is layed flat on a curved fixture in an oven and heated. The glass gets soft and sags to the shape of the fixture. It is then cooled and keeps its new shape.

The solar band, sun band, or "tint stripe" on the windshield is not in the glass but in the plastic layer between the two sandwiched layers of glass. That is how it is only in the one area and not throughout the entire sheet.

Finally tempered glass is heated then the surface is quickly cooled to make the surface under compressive stress when the entire piece cools. This makes it highly resistant to cracks and pretty tough and also causes it to shatter into harmless small pieces when enough force is applied to make it break.

Hope you learned something you didn't already know...
 
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