I use rejex on my X, it lasts a very long time, great stuff.

http://www.xoutpost.com/bmw-related-...033-rejex.html

Maybe if you contact Rejex directly they can tell you if it's available locally?

I buy it from skygeek

Buy RejeX Surface Polymer Treatment, 16 Oz Bottle

Which is probably a good start for you to look, Rejex was originally used by pilots so maybe the local small airport or plane supply store might have it?

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