Windshield Repair Forum

Anybody using any kind of water treatments for applications to windshields?

I don't use a water treatment, but I do remove water spots for a fee.

I once used Nano technology for windshield treatments after removing spot for longer lasting clarity but this guys seem to be out of business or something like that. I currently am looking out for a product with a reputation. Have not tried Rain X or Aquaple so any recommendations would be appreciated .