Quote:
Originally Posted by Perfectlap
did you get the Raggtopp kit? its two different products, the cleanser and the protectant. You need both. Use a super soft brush like an OXO or a boars hair to scrub.
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Porsche makes a good plastic window conditioner. I bought some a few months ago. Works great on clearing up the visibility too. Removes small scratches and swirl marks. It's like a shampoo for the window. It should help in keeping it nice and soft and from cracking. I put some on once a month. It's about $10.00 at the dealership.

Just make sure the plastic window doesn't crimp up and together on itself when the top goes down and you should be okay.