1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revision 2003 02 27 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.15, 3.16, 4 deleted 1991 03 01 CO10894820000 Released W. Scholz Conc. J. Schult Printed copies are uncontrolled Page 1 of 3 Copyright 2003, Ford Glo
2、bal Technologies, Inc. ADHESIVE, SOLVENT RELEASE WSK-M2G353-A 1. SCOPE The material defined by this specification is a synthetic rubber based, solvent release adhesive. 2. APPLICATION This specification was released originally for material used for bonding sewn seat inserts in sandwich construction
3、(vinyl coated knitted fabric - polyurethane foam - cotton sheeting) to molded polyurethane foam parts and/or as specified on Engineering Drawing. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirement
4、s For Production Materials (WSS-M99P1111-A). 3.4 COLOR Light yellow or as specifed on engineering drawing 3.5 VISCOSITY AT 20 C (Brookfield LVT, Spindle No. 2, Rotational Frequency 12/rpm) 3.5.1 As Received 1.3 +/- 0.2 Pa.s 3.5.2 After Aging, max 2.0 Pa.s (Aging according to FLTM BU 104-01) 3.6 DENS
5、ITY AT 20 C 0.8 +/- 0.1 kg/L (ASTM D 1475) 3.7 SOLIDS, min 30 %(FLTM BV 150-10) 3.8 ASH, max 1 %(FLTM BV 150-10) ENGINEERING MATERIAL SPECIFICATION WSK-M2G353-A Page 2 of 3 Copyright 2003, Ford Global Technologies, Inc. 3.9 STAINING None (FLTM BU 152-02, Method B) Light colored vinyl coated seat fab
6、ric, adhesive application double coat, film thickness each 0.2 mm wet, open time one minute. 3.10 AGING No chipping or (FLTM BU 152-05) poor adhesion 3.11 SHEAR ADHESION (FLTM BU 151-01, Method A, standard canvas fabric, double coat each 0.2 mm wet, open time two minutes) a) 10 minutes after bonding
7、, min 80 kPa b) 2 h after bonding, min 150 kPa c) 24 h after bonding, min 250 kPa 3.12 ADHESION TO FOAM The adhesion or the canvas fabric to the foam shall be greater than the cohesive strength of the foam. Test Method: . Coat a sample of polyurethane foam cut from molded production seat padding and
8、 a specimen of standard canvas fabric (see BU 151-01) each with adhesive at a wet film thickness of approx. 0.2 mm. . Bond specimens together after an open time of two minutes and peel apart after conditioning as follows: a) 16 h at room temperature b) 16 h at room temperature followed by 24 h at 38
9、 +/- 2 C and 98 +/- 2 % relative humidity. 3.13 PEEL STRENGTH AT ELEVATED TEMPERATURES (FLTM BU 151-01, Method B2, standard canvas fabric, double coat 0.2 mm wet, open time two minutes) Peel-off-Length up to 70 C: max 40 mm. 3.14 QUALITY The material shall be a smooth homogeneous mixture, free from
10、foreign materials and properties detrimental to normal production use. The material must be capable of regaining its initial physical characteristics and performance after recirculation or agitation prior to use. ENGINEERING MATERIAL SPECIFICATION WSK-M2G353-A Page 3 of 3 Copyright 2003, Ford Global
11、 Technologies, Inc. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY (From date of receipt at Ford Motor Company) Min 4 months when stored in sealed, unopened drums out of direct sunlight at ambient temperatures of 5 - 28 C. 5.2 FLASHPOINT Below 21 C (ASTM D 56) 5.3 OPEN TIME 2 - 5 minutes (Film thickness 0.2 mm wet)
