1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1988 07 08 SM/EQ5767 TP ReleasedWP 3948-a Page 1 of 4 ADHESIVE, POLYESTER - HOT MELT ESK-M2G318-A11. SCOPEThe material defined by this specification is a thermoplastic, hot meltadhesive based on pol
2、yester.2. APPLICATIONThis sp ecification was released originally for material to seal foglampopening on PC bumper in situ foaming.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedth
3、erein is required for material/source approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/o
4、rtherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll produce IR spectraand thermograms that corre
5、spond to the reference standard when testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested und
6、er thesame conditions unless otherwise specified.3.4 COLOUR opaque or asspecified onEng. drawing3.5 SOLIDS, min 99,0 %(FLTM BV 150-10)ENGINEERING MATERIAL SPECIFICATIONESK-M2G318-A1WP 3948-b Page 2 of 4 3.6 ASH, max 0,5 %(FLTM BV 150-10)3.7 DENSITY AT 20 C 1,30 +/- 0,05 g/cm3(ASTM E 12)3.8 SOFTENING
7、 POINT 137 +/- 10 C(ASTM E 28, Ring and Ball Apparatures, in Silicone Oil)3.9 VISCOSITY(Brookfield RTV/Thermos el, Spindle No., SC4/27, rotational frequency1/minute , testing time 2 minutes, conditioning time up to themeasurement 20 minutes)3.9.1 At 160 C 210 Pas +/- 20 %3.9.2 At 170 C 150 Pas +/- 2
8、0 %3.9.3 At 180 C 83 Pas +/- 20 %3.10 SHEAR STRENGTHTest Method1. Appl y sufficient hot melt adhesive at the applicationtemperature of 190 +/- 5 C to a 10 x 25 mm smooth area of a4 x 25 x 100 mm PC panel (according to ESK-M4D441-A).2. Immediately after adhes ive application place on the adhesiveside
9、 a second PC panel (Fig. 1).3. Clamp pa nels together. Use 1 mm spacers to give 1 mmadhesive thickness.4. After 1 h at 23 +/- 2 C unclamp specimen and test shearstrength at a rate of 25 mm/minute.3.10.1 OriginalAt 23 +/- 2 C, min 100 N/cm2At 90 +/- 2 C, min 25 N/cm2At - 40 +/- 2 C, min 60 N/cm23.10.
10、2 After Heat Ageing no loss from(After 14 d at 70 +/- 2 C, original value1 h at 23 +/- 2 C) obtained perclause 3.10.1ENGINEERING MATERIAL SPECIFICATIONESK-M2G318-A1WP 3948-b Page 3 of 4 3.11 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristic
11、s to the material upon which approval wasoriginally granted.Pr ior to making any changes in the properties, composition,co nstruction, color, processing or labelling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the spe
12、cificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification areto be submitted with the req
13、uest.Substance restrictions imposed by law, regulations or Ford apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on the engineeringdocument for the application.
14、4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desiring approvalof thei r materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Engineering acti
15、vity. Uponrequest, the supplier shall submit to the affected Materials Engineeringactivity its own laboratory rep ort to the specification (test results, notnominal values), the material designation and code number, and testspecim ens for Ford evaluation. Upon approval, the material will be addedto
16、the Engineering Material Approved Source List.5. GENERAL INFORMATIONThe information given below is provided for assistance and clarificationand does not represent requirement(s) to this specification.5.1 STORAGE STABILITY(from date of receipt at FMC)12 months when stored between 5 C to 28 C5.2 RECOM
17、MENDED OPERATING TEMPERATURE 190 C5.3 DEGRADATION POINT 210 CIf the temperature of the adhesive exceeds the d egradation point, theadhesive will decompose and all physical properties become adverselyand permanently affected. The material is not to be used once thedegradation point has been exceeded.ENGINEERING MATERIAL SPECIFICATIONESK-M2G318-A1WP 3948-b Page 4 of 4
