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http://www.vwt4forum.co.uk/showthread.php?p=2502750

Which one did you use? I am 2 months in and they still look new. There are loads of rave reviews on loads of the forums about it - people say it lasts years. Can only assume you bought a different...

I would go for the Wurth plastic dye product. Its tremendous! Ive just done the bumpers on my transporter and its permanent - unlike the back to black products you get!