hello If someone has tried oxygen plasma etching of polyester(PET)? How about the etching speed ? -- Jian SHI Ecole Normale Supérieure de Paris Département de Chimie 24 Rue Lhomond, 75231 Paris cedex05, France Tél : +33 1 44 32 24 21 Fax: +33 1 44 32 24 02