1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 04 18 NB00I10043054326 Released A.W.B. K.P.M. B.C.F.WP 3948-a Page 1 of 5 ADHESIVE, NITRILE BASE, FAST TACK, SOLVENT WSB-M2G112-A2RELEASE TYPE1. SCOPEThe material defined by this specification is a sol
2、vent release typeadhesive, made from a nitrile rubber base combined with phenolic resins.2. APPLICATIONThis specification was released originally for material used to bond fabricbacked polyvinyl chloride (PVC) to metal surfaces, such as a shifter bootcover to a metal base.Note: This material was ini
3、tially approved for use on BLACK backed fabricpolyvinyl chloride substrates. The suitability of its use for COLOREDsubstrates must be verified on an individual color basis.Compliance with the performance requirements of this specification does notguarantee the adhesive will function for all potentia
4、l applications on avehicle. The specific design condition should be evaluated by a planttrial or laboratory simulation prior to release of the material.3. REQUIREMENTS3.1 STATISTICAL PROCESSSuppliers must conform to the requirements of Ford Quality SystemStandard Q-101. A mutually acceptable Control
5、 Plan as describedtherein is required for material/source approval. Appropriatestatistical 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 con
6、duct infrared and/orthermal analysis of material/parts supplied to this specification.The IR spectra and thermograms established for initial approval shallconstitute the reference standard and shall be kept on file at thedesignated material laboratory. All samples shall produce IR spectraand thermog
7、rams that correspond to the reference standard when testedunder the same conditions.NOT TO BE USED FOR NEW DESIGN2014 12 08 N Status No replacement named L. Sinclair, NAENGINEERING MATERIAL SPECIFICATIONWSB-M2G112-A2WP 3948-b Page 2 of 5 3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated
8、herein are based on material conditioned ina controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.3.4 COLOR Tan to brown3.5 VISCOSITY(ASTM D 1084, Method B, BrookfieldRVF, Spindle No
9、. 2 at 2 rpm)3.5.1 As Received 400 - 800 mPa.s3.5.2 Aged, max 1000 mPa.s3.6 SOLIDS, min 20 %(ASTM D 2834 except heat at 135 +/- 3 Cfor 1 h in a mechanical convection oven)3.7 SOFTENING POINT, min 80 C(ASTM D 816, except open time shallbe 1 minute, allow to dry 24 h)3.8 WEIGHT PER VOLUME 0.84 - 0.90
10、kg/L(ASTM D 1475)The weight tolerance of any one supplier shall be +/- 0.02 kg/L basedon the recorded weight of the originally approved production sample.3.9 FOGGING(FLTM BO 116-03, 3 h at 100 C heating,21 C cooling plate)Fog Number, min 60Formation of a clear film, droplets or crystals is cause for
11、rejection.Fogging requirement is for the adhesive system only, not forcomposites.3.10 SINGLE COAT ADHESION, min(FLTM BU 151-01, Method A, use current production seating vinyl or equivalent, bonded to phosphate coated panels)Open Cure Time Shear Adhesion Strength30 s 34.0 kPa1 min 69.0 kPa3 min 103.0
12、 kPaENGINEERING MATERIAL SPECIFICATIONWSB-M2G112-A2WP 3948-b Page 3 of 5 3.11 AGED ADHESION, min 207 kPa(FLTM BU 151-01, Method A, 1 minuteopen assembly time)3.12 RESISTANCE TO ADHESIVE STAINING After each of the adhesive staining properties exposures, thepro duction supported vinyl must not show ev
13、idence of delamination,cracking, surface staining, or any other effect which would detractfrom its proper function or appearance.Test M ethod: Brush apply the adhesive to the underside of thepr oduction supported vinyl. The trim material shall be placed inintimate contact over a 68 x 14 mm area of a
14、 phosphate coated panel.3.12.1 Resistance to Fade Staining No adhesive stain(SAE J1885, Xenon Arc Exposure,488.8 kJ/m2)3.12.2 Resistance to Heat Staining No adhesive stain(7 days at 100 +/- 2 C)3.12.3 Resistance to Heat Staining No adhesive stain(30 minutes at 120 +/- 2 C)3.12.4 Resistance to Humidi
15、ty Staining No adhesive stain(7 days at 38 +/- 2 C and95 - 100 % relative humidity)3.12.5 Resistance to Environmental Cycle Staining No adhesive stain5 cycles, each cycle shall consist of the following:. 8 h at 88 +/- 1 C. 16 h at - 30 +/- 1 C. 8 h at 38 +/- 1 C and 95 - 100 % relative humidity. 16
16、h at - 30 +/- 1 C3.13 LOW TEMPERATURE FLEXIBILITY No failure at - 40 C(FLTM BN 102-01)Test M ethod: Brush apply the adhesive to the underside of theproduction supported vinyl.3.14 ODOR, max Rating 2(FLTM BO 131-01/SAE J1351)3.15 QUALITYMater ial shall be a smooth homogenous product free from abrasiv
17、eparticles, it shall be consistent in color and t exture, and free fromobjectionable odors dur ing normal storage. It shall be suitable forthe intended application.ENGINEERING MATERIAL SPECIFICATIONWSB-M2G112-A2WP 3948-b Page 4 of 5 3.16 STORAGE STABILITYThe adhesive shall be s tored in closed conta
18、iners at temperatures of10 - 27 C, away from al l sources of heat or sunlight. Storage timesgreater t han 3 months shall be avoided. At all times protectmaterial from freezing.3.17 FUNCTIONAL APPROVALMaterials being evaluated for approval to this s pecification shall besubject ed to a production tri
19、al. Functional trial results must beapproved by the affected assembly operation and Design Engineering.Results shall be made available to Materials Engineering prior tomaterial approval and release.3.18 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufa ctured parts shall bespec
20、ified on the Engineering drawing, Engineerin g parts specificationand/or performance specifications. All critical areas with respectto these properties shall be clearly designated on the engineeringdrawing.3.19 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent i
21、nal l characteristics to the material upon which approval wasoriginally granted.Pri or to making any change in the properties, composition,constr uction, color, processing or labeling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials abili
22、ty to meet the specificationrequir 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 subm
23、itted with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICATIONWSB-M2G112-A2WP 3948-b Page 5 of 5 4. APPROVAL OF M
24、ATERIALSMat 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 activity. Uponreques
25、t, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized representative of the test faci lity, demonstratingful l compliance with all the requirements of this specification (testresults, not nomi
26、nal values), the material designation a nd code number, andtes t specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for i ntended processes and/or applications. Uponapprov al, the material
27、will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information below is provided for clarification and assistance inmeeting the requirements of this specification.5.1 FLASH POINT, max - 18 C(ASTM D 56)5.2 VISCOSITYSee suppliers acceptabl e recommendations dependent on assembly plantmanufacturing requirements.5.3 SOLIDSSee suppliers acceptabl e recommendations dependent on assembly plantmanufacturing requirements.
