Note the rain x website faq page does say that rain x is safe to use on glass shower doors.
Using rainx on glass shower doors.
How to use rain x on clear shower doors step 1.
The manly housekeeper says he s been using rain x on his shower doors originally meant for windshields and has had nothing but good results.
The shower door must be completely clean for the rain x to work.
Apply the first coat of rain x by spraying the rain x on the inside of your shower.
Rain x can be used on glass shower doors without any etching to achieve the benefits of rain x water beading in the shower.
Clean your shower door thoroughly.
I wouldn t let pets or children around while you re applying it or let them lick the glass or anything but beyond that it seems just like using any other household cleaner.
Product usage instructions use in a well ventilated area clean and dry surface before treating apply rain x shower door water repellent to a small folded dry cloth or paper towel wipe onto the glass using a firm circular and overlapping motion allow product to dry until slight haze appears.
Note the rain x website faq page does say that rain x is safe to use on glass shower doors.
Rain x should not be used on plastic shower doors.