In a former life I used to sell & fabricate Plexiglass.** Clean it with a mild soap ,lots of water and a soft, clean*cloth.* Then as someone else suggested use a good auto paste wax.* It will protect it and fill in any mild scratching.*
Do not use products like Windex or Rainex.* That goes for Lexan also or any product called acrylic or polycarbonate.
I also dislike Rainex and strongly recommend AGAINST use of it.*** Great stuff when freshly applied.* The rain really does run off.* On the road at speeds above 45mph I almost didn't need the wipers even in heavy rains.
The catch is you must keep it FRESH which can be problematic.* If you don't and you run wipers on it , your windsheild will turn into a horrible mess, difficult to see through.*It is almost impossible to get rid of.* I had it on my cars and my boat and I got rid of it on the boat when I had to replace the windows and on the cars when I got rid of the cars.**** I used acetone, laquer thinner, Xylene, meth. hydrate and I never did clear the windows of that stuff.*** Just my opinion*
-- Edited by C lectric on Friday 1st of May 2009 04:40:36 PM