1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 05 07 N Status No usage or replacement N. Benipal, NA 2006 09 18 Revised Inserted 3.0; Deleted 3.1, 3.7 & 4 1963 06 13 Released AS2-280 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 2 TAPE
2、, INSULATING - RUBBERIZED ASPHALT ESA-M99G50-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a rubberized asphalt insulating tape. 2. APPLICATION This specification was released originally for material used as a thermo-insulating tape around air conditioning re
3、frigeration lines in automotive units. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production
4、 Materials (WSS-M99P1111-A). 3.2 THICKNESS 0.115 - 0.140 in (ASTM D 1000, except use 1 in (2.92 - 3.56 mm) (25 mm) diameter foot and 1 lb (0.45 kg) loading) 3.3 NEEDLE PENETRATION (ASTM D 1321, 100 g total load) 3.3.1 As Received 3.5 - 5.0 mm 3.3.2 Aged 3 Days at 70 +/- 1 C, min 3.3 mm 3.4 FLEXIBILI
5、TY No visible cracks or breaks Test Method: Bend the specimen slowly 180 around a 1/4 in (6.4 mm) mandrel after conditioning as follows: 3.4.1 As Received at 23 +/- 2 C 3.4.2 Specimens maintained at -23 C for 24 h with mandrel conditioned at the same temperature. ENGINEERING MATERIAL SPECIFICATION E
6、SA-M99G50-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 3.5 HEAT RESISTANCE 3.5.1 Aged 24 h at 50 +/- 1 C Shall not become tacky to a degree that it will stick to fingers or to cloth. Also, it shall not dry to a degree that it will not adhere to metal or to itself. 3.5.2 Aged 2 h at 12
7、1 +/- 3 C Shall not drip, disintegrate or unwrap through loss of adhesion. Test Method: The tape shall be wound, overlapping itself on a 1/2 in (13 mm) steel mandrel and exposed to the heat in a vertical position. 3.6 STORAGE STABILITY Shall retain its flexibility when stored for extended periods of
8、 time (60 - 90 days) at temperatures ranging from 10 - 49 C. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COMPOSITION The following composition has been found satisfactory: Rubberized Asphalt 54% Cork (Virgin Granulated) 45% Other Fillers 1%
