1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 09 26 Revised Inserted 3.0; Deleted 3.1, 3.11, 4 1979 01 10 Metricated, Renumbered & Retyped CAH2 823385 E. P. Francis 1964 02 27 Released AS2-442 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 2 T
2、APE, POLYTETRAFLUOROETHYLENE - PRESSURE SENSITIVE ESA-M3G73-A 1. SCOPE The material defined by this specification is a pressure sensitive polytetrafluoroethylene tape coated on one side. 2. APPLICATION This specification was released originally for material used as an anti-friction surface for the s
3、teering column instrument panel opening cover. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 THICKNESS 0.0025 - 0.004 in (0.063 - 0.10 mm) 3.3
4、BREAKING STRENGTH, min 20 oz/in (219 N/m) width (ASTM D 1000) Elongation, max 200% 3.4 ADHESION TO STEEL, min 20 oz/in (219 N/m) width (ASTM D 1000) 3.5 ADHESION TO PAINTED METAL, min 25 oz/in (274 N/m) width (ASTM D 1000) 3.6 AGED ADHESION, Painted Metal, min 30 oz/in (328 N/m) width Test Method: P
5、repare bonded samples as described in ASTM D 1000. Expose the samples in a mechanical convection oven maintained at 70 +/- 1 C for 72 h. Permit samples to cool at 23 +/- 2 C for 2 h minimum prior to test. 3.7 LOW TEMPERATURE FLEXIBILITY Shall not crack nor show any evidence of failure. Test Method:
6、Samples approximately 6 in (150 mm) in length shall be conditioned for 16 h at -29 C and shall then be bent 180 (3.1 rad) on itself. ENGINEERING MATERIAL SPECIFICATIONESA-M3G73-APrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 2 3.8 MIGRATION STAIN None Test Me
7、thod: The material shall be placed in intimate contact with a freshly painted light colored (white or blue) enameled panel and also light colored vinyl trim material, ESB-M2F37, and subjected to 200 h in the Westinghouse Fluorescent Sunlight cabinet described in FLTM BO 115-01. 3.9 ODOR No offensive
8、 odor in the “as received“ condition or after the heat aging test outlined in para. 3.6. 3.10 UNWIND PULL, max 20 oz/in (219 N/m) width 5. GENERAL INFORMATION This information is for direction of the user and is not a requirement for the supplier. The useful temperature range for this material is -53 to 205 C continuous. Intermittent use up to 260 C is possible. Users should note, however, that above 205 C, the film gives off small quantities of toxic fumes and ventilation must be provided.
