If you walk up to white vinyl framed window and you run your finger along the frame and your finger gets the white chalky residue on it, here’s a tip…
Take a old huck towel and get it wet ring it out and add some ammonia to it and wipe the frame let it dry then wash the glass as normal it will eliminate all most all of the white residue from spread to the glass.
You don’t have to scrub hard at all, just enough pressure to take the white powder (oxidation) off.
Wear rubber gloves, the ammonia has a strong smell and the the white residue is a pain to get off your hands.
Hope this helps someone.
