Does anybody know the composition of Nichrome Etchant, TFN sold by Transene? -- Michael Young Advanced Custom Sensors, Inc. 18 Technology Drive, Suite 139 Irvine, CA 92618 TEL (714)453-8988 FAX (714)453-8987 E-mail: acsensor@acsensor.com Web site: http://www.acsensor.com/