Products listed on this page can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer, and toluene, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
"When installing window perf or other vinyl, many glass surfaces have wax or other invisible coatings on them (like RainX) that interfere with adhesion. Place several drops of water on the glass, if the water forms into beads there is a coating that must be removed. If the water does not form into beads there is no coating and you can proceed to clean with isopropyl alcohol."