– Why can’t front windshields have the same defrosting method as rear windshields?

Question

The rear windshield defrosters seem so much more effective. Is it just the lines across the drivers field of view that makes it decidedly unsafe?

In: 17

Answer 1

Indium-tin oxide (ITO) is a clear conductive coating that is effective as a defog/defrost windshield method. This requires an optical coating which needs an expensive coating system. A company in Toledo makes large conductive glass pieces via a pyrolytic process that imbeds ITO in the glass. I’ve always thought clear conductive windshields would become the norm but expense might be limiting commercial use.

Due diligence: Previous commenter mentioned clear conductive coating approach.