1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 19 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.12, 3.13 Comp. Rev. & Updated J. Skelly 1995 08 14 Activated S. DeGrood Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 ENCAPSULANT, SILICONE
2、DIELECTRIC GEL WSS-M99G128-B1 ENCAPSULANT, SILICONE DIELECTRIC GEL, WSS-M99G128-B2 LOW TEMPERATURE RESISTANT ENCAPSULANT, SILICONE DIELECTRIC TOUGH GEL WSS-M99G128-B3 1. SCOPE B1 The material defined by this specification is a very soft, 2 part, silicone gel. B2 The material defined by this specific
3、ation is a very soft, fast room temperature cure, 2 part, silicone gel, with a freezing point below -60 C. B3 The material defined by this specification is a flexible, firm, 2 part, silicone gel. 2. APPLICATION B1 This specification was released originally for a compound used in sealing and potting
4、diodes in the alternator rectifier circuit, with the exception of modules containing wire bonds. B2 This specification was released originally for a compound used in sealing and potting in the mass air flow sensor, with the exception of modules containing wire bonds. B3 This specification was releas
5、ed originally for a compound used in sealing and potting in the distributed battery module, with the exception of modules containing wire bonds. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIA
6、LS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 VISCOSITY - BROOKFIELD VISCOMETER, mm2/s (ASTM D1084 Method “B“, model LVT, 60 rpm, # 3 spindle for B1/B2, 30 rpm, #2 spindle for B3) B1 B2 B3 3.4.1 Part A 200 -
7、 700 300 - 700 200 - 700 3.4.2 Part B 200 - 700 300 - 700 200 - 700 3.4.2 Mixed 200 - 700 300 - 700 N/A ENGINEERING MATERIAL SPECIFICATION WSS-M99G128-B1/B2/B3 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 B1 B2 B3 3.5 GEL TIME, minutes 5 - 15 10 - 25 5 -
8、15 (ASTM D 2471, at 135 C at 25 C at 22 C components at R.T.) 3.6 PENETRATION, mm 3 - 8 6.0 - 11.0 N/A (FLTM BJ 123-03, cured 1 h at 150 C) 3.7 HARDNESS, DUROMETER, 00 N/A N/A 45 - 75 (ASTM D 2240, cured 30 minutes at 150 C For the following tests, samples are cured 1 h at 150 C unless otherwise noted. 3.8 DIELECTRIC STRENGTH, min 15 kV/mm 15 kV/mm 15 kV/mm (ASTM D 149) 3.9 SPECIFIC GRAVITY 0.96 - 0.98 0.96 - 0.98 0.96 - 0.99 (ASTM D 792, Method A) 3.10 VOLATILITY, loss, max 3.0% 3.0% 3.0% (2 g for 2 h at 150 C) 3.11 GLASS TRANSITION -40 -60 -40 Temperature, C (DSC)
