Some components made of polycarbonate (PC) are coated with PMMA for better UV resistance.
Some of them show the defects in the image: a sort of tree-shaped appearance, visible only form certain points of view (or when the item is wet). Have you ever seen such a kind of defect?
Andrea Vecchi R&D - Carpi, Italy ^
March 25, 2010
The defect is called "crazing". Something has caused it, but I wouldn't know what that would be. You should probably talked to a tech. person at the company that manufacturers your particular brand of polycarbonate if you can. They may have some more advice for you. Good luck.
Jon Barrows, MSF, EHSSC Independence, Missouri ^
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