Any type of alcohol is a dehesive, 409 leaves a soapy film and wax well myself is a bit more then I want to do but a good idea,(May give this a try).

Just simple ole windex glass cleaner is all you need, as far as ammonia breaking down material, I have never seen it, besides even if it did, it would not happen over night, if at all.

I tried using the denatured alcohol and started noticing my decals and covering starting to lift off, it dawned on me that it was the alcohol that was causing it. I stopped with the alcohol and the peeling stopped. 409 left a soapy film and I noticed no cleaning difference between windex and the 409.

Windex and scotty paper towles, thats all you need, keep it quick and simple. Fly, spray, wipe and go home.

Randy