Rich writes: discussion about Plexi for the The biggest problem, IMHO, of plexiglass is that static buildup attracts dust to the case :-). That said, there are anti-static sprays and "static-dissipative" and "anti-static" acrylic sheets available if you're worried about either ESD damage or just all the dust! I don't think it's sold by Rohm directly so you might want to use "acrylic" rather than "Plexiglas" in google searches. McMaster-Carr is a great place to get the stuff if you don't have a local plastic shop that stocks it. (I used to have a really really good platic shop in my neighborhood, but it got bought out by a national chain and now the retail side sucks rocks.) Tim.