Anyone ever use rain-X on that plastic glass(not sure of spelling (i-sen glass)? I don't want to put it on there if it's going to turn it yellow faster.

I think it's Eising glass. Great stuff , that rain-x , but I don't use anything but a garden hose and a clean towel (very lightly). I've wondered the same thing since I have it between my windshield and bimini. I could see a whole lot better in the rain

I have...no problems yet. Rain-X also makes wax now....I just bought some, awesome stuff.

I used to use it on my Old Jeeps Soft top (with Plastic Glass).. Not even the Mud
would stick to that stuff.... Excellent Product!!! MW

you should clean the isinglass before using a polish. I have used "210" plastic cleaner/polish, and it works great. You can pick it up at boat.us. It is anti-static and anti-fog. Made by Sumner Labs ..ph# (800)542-8656
This stuff outlasts Rain-X and it is designed for isinglass and all other acrylics. Sprays on like windex, and wipe with soft clean cloth.