Philip Torrens wrote: > >Last winter we used rain-x on the face shields of our snowmobile helmets > >with no > >ill effects, so I doubt that it would hurt the plastic on sunglasses. > > >Mike > > Whether Rain-X affects the actual lens material may not be the only issue > here; the lenses of better quality sunglasses, whether plastic or glass, > usually have anti-reflective coatings. So even if your sunglasses are not > melted, you may be stripping off some of these coatings, and thereby > reducing the performance of the glasses. The only caveat I'd mention is that many plastic lenses are made of polycarbonate (one brand name is Lexan) and therefore is affected by alcohol. Having used alcohol for cleaning glass optics for years, I casually ruined (over a few months) a good pair of glasses made of polycarbonate. The pattern from the grinding of the lens shows. So... check whether the Rain-x or other cleaner or anti fog agent contains alcohol. Mike *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Aug 09 1999 - 19:11:44 PDT
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