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Forum: RIBs & ribbing 09 November 2011, 22:30
Replies: 23
Views: 4,462
Posted By captnjack
Correction: polycarbonate blocks nearly 100% of...

Correction: polycarbonate blocks nearly 100% of the UV portion of the spectrum. That's why its used in sunglasses and such. It will often yellow with age and UV exposure so its not the best...
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