DO NOT USE ALCOHOL ON THE REAR QUARTER ACRYLIC WINDOWS!!!!!
In case you didn't get the idea...
DO NOT USE ALCOHOL ON THE REAR QUARTER ACRYLIC WINDOWS!!!!!
The GT Quarter windows (I don't know about other models) are made from an acrylic compound (like the trademark "Plexiglas" from Rohm and Haas), and acrylic and isopropyl alcohol DO NOT MIX!!! Cast acrylic is generally more resistant to damage than sheet materials, but none of them are good. The recommendation for all of them is to minimize contact with isopropyl alcohol.
The worst part about the incompatibility between the two is that the effects are often latent. This means that you could wipe your window down with isopropyl and it may look great... For a little while. The problem is that the cracks may not start to appear for a few minutes or even hours. The cracking effect is complicated by mechanical stress. The worst thing you can do is put acrylic under mechanical stress, and then douse it with isopropyl.
From: Bruce D. Walters