Expert: Mike Fulcher - 8/21/2006

Question
Hi, Iam doing my graduation in biotechnology and I frequently use ultraviolet rays (UV-C) as a sterlizing agent in Laminar air flow cabinets. The front cover of this cabinet is made up of acrylic glass. I want to know how good enough is this polymer in blocking harmful UV radiations?
Thank you.

Answer
I think your best bet would be to consult the cabinet manufacturer to determine if the acrylic material has any additives which could affect UV penetration.  This is coming in materials for eyeglasses and windows, but I would suspect that clear acrylic panels provide little if any UV absorption.  To quantify this, you could use a UV spectrophotometer and test a sample of the material, but a reliable plastics manufacturer might be able to tell you without all the effort.  Good luck.