RainX on Griffith rear window

[Digger]

Preparing the car for Chatsworth. Can you use RainX on the rear window?

[fausTVR]

[V8 GRF]

Not sure, but I use 303 aerospace protectant which is protects the screen keeps it soft and supple (even in winter), removes fine scratches and helps the rain to run off.

I get mine from The Polishing Company

[Torquemada]

I use Autoglym Super Resin polish on mine - does the job as well as expensive alternatives. I seem to remember RainX is not recommended for plastics.

[Digger]

Top Tip. Don't leave the wax on for too long. Being a b*****d to buff out.

[bionicjim]

Rain x
Is not the best to use on plastics it makes it brittle
I found this out when using it on me bike visor
Having it shatter at very high speed
To say I was clenched was an understatement

[julianc]

I used RainX on the Tamora glass a couple of weeks ago. The instructions state specifically not to use it on plastics.