15 What is Rain-X? Does it work?
Description
This article is from the VW Performance FAQ, by with numerous contributions by Jan Vandenbrande others.
15 What is Rain-X? Does it work?
A:It's a chemical to treat your windshield to repell water.
Above certain speeds raindrops will just slide off the
windshield making wipers almost redundant. This product
is used on airplanes. Peoples experiences vary with this
product. It works well on some windshields or types of
glass (most VWs seem ok) not too well on others (for
example, it will have no effect on headlights). In all
situations, it will only last for a couple of thousand
miles. Some have reported that it forms a haze on the
wildshield. I believe that part of the trick to apply
this product right is to start with a very clean
windshield (use alcohol as a final degreaser), at
temperature (18C or 70F) and use extremely clean soft non
greasy cotton cloth.
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