Based on the ads I've seen, I believe the rationale for the coating is the same as that for using rejuvenator on our asphalt roads -- it restores elasticity and other properties degraded by all the UV light we get. Since the ads have just popped up I would assume this is a new product so I wouldn't know whether it actually works, let alone whether it is a scam. I would certainly advise anyone considering using it to contact their insurance company.
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