Dear All, Thanks for your comments and suggestions. Actually I dont have either silane or the teflon coating with me. I'll try to get them and see. Meanwhile I shall try to reduce the baking temp of PDMS and check out... Do you all suggest to clean up the Su8 master after each moulding process with some chemicals or ultrasonication? Please advise. Thanks in advance. Debashis Maji On Tue, Dec 14, 2010 at 9:02 PM, Michael Cookewrote: > Have you tried a thin telfon layer, or perhaps poorly adhesive metal ? -- Debashis Maji, SRF - Texas Instruments & IIT Kharagpur collaborative Project, PhD Scholar - School of Medical Science & Technology, IIT Kharagpur, India - 721302