Acetone is an excellent solvent for polycarbonate. Soak the part in acetone and if any polycarbonate remains remove with a soft brush. -----Original Message----- From: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] On Behalf Of Daniel Park Sent: Sunday, December 25, 2005 1:50 PM To: mems-talk@memsnet.org Subject: [mems-talk] Removing of Polycarbonate (PC) Hello, all. I am working on hot embossing of polycarbonate (PC) using metal mold inserts. Unfortunately, during moldoing process, PC got broken and stuck in small holes (10 by 10 um in 60 um deep holes). I am looking for a wet removal or dry removal method for polycarbonte. If any of you know, please let me know. Your help will be greatly appreciated. Daniel Park