Hello po. My first post here in the forum.

Last week po kasi, i drove to Ilocos Norte from Baguio at 3AM in the morning and was so glad i spent time putting on rain repellant on car windshields & side mirrors. Somewhere in Ilocos sur, it rained cats & dogs. Lakas ng ulan, ang lakas pa ng hangin. Though it was already 7am, parang 5Am pa rin sa dilim ng daan. At any rate, nakikita ko naman clearly yung daan. Only thing stopping me from driving beyond 70kph was hyrdoplaning.

Question for those in the know, since the product is chemical based, would it have bad side effects on the windshields?

Brands i've tried are: RainX, AutoGard Rain Repellent & Rain Act.