Some dark spots where my stove cover leans on it during cooking (no heat problem) I just don't want to scratch the window.
the best plastic cleaner I've ever used is meguires plastic cleaner then follow it up with their plastic polish , it truly works miracles , you won't be disapointed
If heat has burned the plastic, no cleaner will help it. If not, try Plexus. It is what motorcycle riders used to clean their visors and windshields. Lots of car detailers use it to clean plastic windows on convertibles and Jeeps. Find it at any motorcycle dealer. Use with a clean microfiber cloth.
