We have just got new retrofit windows installed yesterday, argon two pane vinyl windows, Alside brand. They have lots of smudges all over so I started cleaning them. The biggest of them, tempered picture window on the porch feels somewhat flimsy. I press the rag against it and it moves, bends and come back after I release the pressure. Is that normal?
The contractor claims it is normal but the old window ( original wooden single pane ) was certainly not moving. Also, none of the other windows ( some of them also big picture windows although none of them this big ) are doing it.
Other question is about the smudges, some seem to be caulk, some glue-ish and some oil. I can also see a big Alside sign in the top part under a certain angle. None of it comes off easily with the Windex. The oily patches not at all. The contractor recommended to clean it with lacquer thinner. Is that okay? something like acetone? Is not it going to damage the layer on the window?