My RX350 is only a few weeks old (~500 miles). I sprayed the rear window with Invisible Glass and began cleaning it off with a diaper when I noticed handprints on it. Until I got it completely dry, the handprints were clearly visible. Even though the car has been washed twice and that window has been cleaned once with Invisible Glass, the handprints have not gone away. They were visible again the next morning when the window fogged up with condensation.

Has anyone experienced anything similar?

 

Use microfiber towel to clean your window. Diaper isn't actually what I would use. It could get expensive

 

LOL ...
Not disposables!

I started using diapers to clean glass when I saw what a good job they did on eyeglasses when my optometrist used them. Actually, I first started using diapers a long long time ago, but not for cleaning glasses.

 

I would polish it with my PC and some Zaino Z-12