1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2015 01 07 N Status No replacement named L. Sinclair, NA 2003 02 26 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.14, 4 deleted 1991 01 02 C01089480 Released K. Wolters, conc. J. Schult Controlled documen
2、t at www.MATS Page 1 of 4 Copyright 2015, Ford Global Technologies, Inc. ADHESIVE, ETHYLENE VINYL ACETATE, HOT APPLIED WSK-M2G345-A 160 - 180 C, PRESSURE SENSITIVE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic pressure sensitive hot melt adhesiv
3、e. 2. APPLICATION This specification was released originally for material used to bond foam pad to frame of front seat back. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Mate
4、rials (WSS-M99P1111-A). 3.4 COLOR Light brown, transparent, or as specified on Engineering Drawing 3.5 SOLIDS, min 99 % (FLTM BV 150-10) 3.6 ASH, max. 0.1 % (FLTM BV 150-10) 3.7 DENSITY Initial Sample +/- (ASTM D 792) 0.05 g/cm3 3.8 SOFTENING POINT 65 - 71 C (ASTM E 28, Ring and Ball Apparatus) ENGI
5、NEERING MATERIAL SPECIFICATION WSK-M2G345-A Page 2 of 4 Copyright 2015, Ford Global Technologies, Inc. 3.9 VISCOSITY (ASTM D 4402, Brookfield RVT/Thermosel Spindle No. SC4/27, 1 rpm. Alternate method Haake Rotovisco PK II, 54 rpm) 150 C 12,000 - 15,000 mPas 160 C 9,900 - 12,200 mPas 170 C 7,800 - 9,
6、600 mPas 3.10 SHEAR STRENGTH (FLTM BU 151-01) Test Method: Apply adhesive at the application temperature of 160 - 180 C to a 25 x 10 mm area of a 25 x 75 mm non-impregnated canvas fabric piece (having a min tensile strength 1kN/50 mm width) to a thickness of approx. 0.8 mm. Aging of the adhesive pri
7、or to bonding: 3.10.1 1 minute at 23 +/- 2 C 3.10.2 30 minutes at 23 +/- 2 C 3.10.3 120 minutes at 23 +/- 2 C Place the adhesive side of the canvas fabric specimen on a polished stainless steel panel (0.8 to 1.0 mm thickness) and roll the overlapped area for 10 s with a 2 kg roller per ASTM D 1000,
8、(see fig. 1) After 1 h at 23 +/- 2 C determination of shear strength at a rate of 25 mm/minute. Requirements: 3.10.1 Unaged, min 35 N/cm2 3.10.2 Aged 30 minutes, min 35 N/cm2 3.10.3 Aged 120 minutes, min 35 N/cm2 3.11 PEEL ADHESION (FLTM BU 151-01, 180 ) Apply adhesive at the application temperature
9、 of 160 - 180 C to a 25 x 100 mm area of a 25 x 250 mm non-impregnated canvas fabric piece (having a min tensile strength of 1 kN/50 mm width) at a thickness of approximately 0.8 mm (fig. 2). Condition 1 minute at 23 +/- 2 C. ENGINEERING MATERIAL SPECIFICATION WSK-M2G345-A Page 3 of 4 Copyright 2015
10、, Ford Global Technologies, Inc. Place the adhesive side of the canvas fabric specimen on a polished stainless steel panel (0.8 to 1.0 mm thickness) and roll the overlapped area for 10 s with a 2 kg roller per ASTM D 1000, (see fig. 1) Requirements: 3.11.1 Original Value, min 30 N/cm After 1 h at 23
11、 +/- 2 C test peel adhesion according to ASTM D 1000. 3.11.2 After Aging, max - 15 % Age specimen for 14 days at 70 +/- 2 C. After 1 h at 23 +/- 2 C test peel adhesion according to ASTM D 1000. Maximum 15 % loss of peel adhesion based on the original measured value. 3.11.3 After Environmental Cyclin
12、g, max - 15 % 5 times the following cycle: 4 h at 80 +/- 2 C 4 h at - 40 +/- 2 C 16 h at 38 +/- 2 C and 98 +/- 2 % relative humidity After 1 h at 23 +/- 2 C test peel adhesion according to ASTM D 1000. Maximum 15 % loss of peel adhesion based on the original measured value. 3.11.4 After Humidity Agi
13、ng, max - 30 % Age specimen for 72 h at 38 +/- 2 C and 98 +/- 2 % relative humidity. After 1 h at 23 +/- 2 C test peel adhesion according to ASTM D 1000. Maximum 30 % loss of peel adhesion based on the original measured value. 3.12 FOGGING, max (FLTM BO 116-03) Fog Number, min 60 Formation of clear
14、film, droplets or crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSK-M2G345-A Page 4 of 4 Copyright 2015, Ford Global Technologies, Inc. 3.13 QUALITY The adhesive shall be a smooth, homogeneous mixture, free from foreign materials The material must be adaptable for application i
15、n accordance with the appropriate Ford Motor Company Process Specification and must be compatible with all related materials. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY 12 months The material must be stable during storage at temperatures between 5 C and 32 C.
