1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 02 16 N Status No replacement named N. Benipal, NA 2006 03 09 Revised Inserted 3.0; Deleted 3.1, 3.10, 4 1989 08 22 Released DEPE00107002031 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 2
2、 COATING/SEALER, EPOXY, UV CURABLE, CONFORMAL ESF-M99J356-A COATING/SEALER, EPOXY, UV CURABLE, CONFORMAL, ESF-M99J356-A2 HIGHER VISCOSITY COATING/SEALER, EPOXY, UV CURABLE, CONFORMAL, ESF-M99J356-A3 RED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by these specifications is a solvent
3、free, epoxy conformal coating which is cured by exposure to ultraviolet light. 2. APPLICATION These specifications were released originally to define a material to be used as a conformal coating/sealer for the plasma sprayed alumina coating on the negative diode plate of the 3rd Generation Alternato
4、r family. 3. REQUIREMENT 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 Materials (WSS-M99P1111-A). 3
5、2 To be verified on each incoming lot by inspection or certification of compliance from the supplier. 3.2.1 Composition The material shall be a one-part, solvent free, 100% solids epoxy resin with a fluorescent dye for -A and a red dye for -A3. 3.2.2 Visual Appearance Colorless liquid for -A and -A
6、2, red liquid for -A3. 3.3 SPECIFIC GRAVITY 1.10 - 1.20 (ASTM D 154 at 25 C) 3.4 VISCOSITY at 25 C 100 - 150 mPa.s (Brookfield model RVT, spindle #1, 10 rpm) (-A & -A3) (spindle #3, 10 rpm) 4500 - 5500 mPa.s (-A2) ENGINEERING MATERIAL SPECIFICATION ESF-M99J356-A/A3 Copyright 2012, Ford Global Techno
7、logies, LLC Page 2 of 2 3.5 CURE TIME, max Tack free in 10 s (0.0245 mm film at 25 C and 75% R.H. exposure to 465 kW/m2 medium pressure UV light source) 3.6 FLASH POINT, min (ASTM D 93) Pensky-Martens Closed Cup 73 C Cleveland Open Cup 143 C 3.7 HARDNESS, min 3H Pencil 3.8 FLUORESCENT DYE (-A only)
8、Present (Examination under black light with a minimum intensity of 700 microwatts/cm2) 3.9 DIELECTRIC PROPERTIES Tests to be run on 1.5 mm thick aluminum panels, spray coated and cured by a 10 second exposure to a 465 kW/m2 medium pressure mercury UV light source. Thickness of epoxy coating to be 0.025 - 0.0375 mm. 3.9.1 Dielectric Breakdown At Maximum leakage 500 Volts DC current 60 microamps (Coating-Positive voltage with respect to ground) 3.9.2 Dielectric Strength 60 KV/mm (ASTM D 115, short time) 3.9.3 Salt Spray Maximum leakage (ASTM B 117, Test same as 3.9.1) current 60 microamps
