Windshield damage ??

[UtahPete]

I just went out and cleaned one of my retired/spare windscreens with 50% isopropyl with no deleterious effects whatsoever. What do you suggest to remove chemical films? Very few things are milder then alcohol.

The windshields are either acrylic or polycarbonate...plastic. I've not heard of a motorcycle windshield maker recommending anything but soapy water and a soft cloth to clean it. Then, something like All-Clear to polish it.