1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1995 10 06 Activated D. Henrickson LAGWP 3948-a Page 1 of 9 DEADENER, ASPHALT/SBR MASTIC, HIGH PERFORMANCE, WSS-M5G64-ALIGHT WEIGHT, PSA/HEAT BONDABLE1. SCOPEAll of the materials defined by this specification are
2、 acousticaldeadeners. The various kinds of deadeners specified are described in amat erial matrix enclosed herein. Each unique material described in thematrix is assigned its own specification number.2. APPLICATIONThi s specification was released originally for materials used to dampvib rating body
3、panels. Unique material applications are defined by thematerial matrix incorporated in the specification.Prior to use, the material must be evaluated under the c omponent productionparameters. The choice of substrates, stamping lubricants, plantproces sing conditions and specific design application
4、may affect materialperform ance. Compliance with this specification does not guarantee thematerial will function for all potential applications on a vehicle.3. REQUIREMENTS3.1 QUALITY SYSTEM REQUIREMENTSMaterial suppliers and part producers must conform to Quality SystemRequirements, QS-9000. Materi
5、al specification r equirements are to beused fo r initial qualification of materials. A Control Plan forong oing production verification is required. This plan must bereviewed and approved b y the relevant Ford Materials activity and/orFor d Supplier Technical Assistance (STA) prior to production pa
6、rtssubmission. Appropriate statistical tools must be used to analyzepr ocess/product data and assure consistent processing of thematerials.Part producers using this material in their products, must use Fordapproved materials and must conform to a process control plan whichhas been approved by STA an
7、d/or the relevant Materials Activity.ENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 2 of 9 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectr
8、a 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 correspond to the reference standard when testedunder the same conditions.3.3 CONDITIO
9、NING 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 under thesame conditions unless otherwise specified.3.4 MATERIAL MATRIXThe matrix be
10、low provides information on basic material type,manufacturing process location, method of applic ation, and acceptablein-vehicle orientation for each material specification number.Material Type. Asphaltic Based X. Polyvinyl Chloride. Ethylene Vinyl Acetate. Polyvinyl Acetate . Urethane. Butyl. SBR b
11、ased X. Saturated Felt. Aluminum Foil . Adhesive X. Magnetic. Special Requirement X (anti-fogging film for non-bake applications). Release Liner XAssembly Location (whereapplied in mfg. process). Stamping Plant or AssyPlant body-in-white. Paint Shop (assy Plant X after E-coat bake). Trim Shop(assemb
12、ly X (with anti-fogging film)plant after paint)ENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 3 of 9 Method of Application. Spray. Lay by Hand X. Pressurize X. Extrude. Special RequirementIn-vehicle Orientation. Horizontal Only. Vertical or Horizontal X. Inverted or Other. Special Requi
13、rement3.5 SAMPLE PREPARATION3.5.1 Applying Material to Substrate3.5.1.1 Materials Applied with PressureRoll once (in the forward direction only) with asto ck steel (78 mm min. diameter) using a surfaceload o f 2.2 kg/25 mm of sample width (+/- 0.01 kg,+/- 3 mm sample width).3.5.1.2 Cut sampl es to t
14、he size specified, +/- 3 mm. Thesample must be flat with no bent edges, no raisededges and no depressed edges.3.5.2 Sample OrientationAll in -vehicle orientations used should be evaluated (seematerial matrix (para 3.4) for in-vehicle orientations).3.5.3 Processing Temperature BakesTypical manufactur
15、ing-process minutes-at-metal-temperatures(MMT) minimums, nominals, and maximums are identified below.All processing sequences encoun tered with the material shouldbe eva luated (see material matrix, para 3.4, for processinformation) unless otherwise specified herein.Process Low Bake Nominal High Bak
16、eBake (MMT) (MMT) (MMT)E-coat 10 170 C 10 182 C 30 205 CPrimer 8 135 C 10 150 C 20 177 CTopcoat 10 125 C 10 130 C 20 165 CPredelivery 10 100 CENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 4 of 9 3.5.4 Production Representative SubstratesAll metals, oils/draw compounds , coatings, and o
17、ther surfacesused wi th the material should be evaluated (for typicalsubstrates, oils and coatings see para 3.5.5).3.5.4.1 Materials Applied at Metal Stamping or in theAssem bly Plant Body Shop (body in white)-allmetals, galvanize coatings, oil s/draw compounds andother surfaces used with the materi
18、al should beevaluated.3.5.4.2 Materi als Applied in the Assembly Plant Paint Shop(aft er E-coat bake)-all E-coats, primers, andother surfaces used with the material should beevaluated.3.5.4.3 Mater ials Applied in the Assembly Plant Trim Shop(after paint)-all topcoats and other surfaces usedwith the
19、 material should be evaluated.3.5.5 SYSTEM PROCESS COMPATIBILITYInitia l material approval was based on specific materialsystems which included the substrate, stamping l ubricants anddeadener system. The originally approved materi al system wasprocessed and cured using specific production processpar
20、am eters. Substrate choice, stamping lubricants, andasse mbly plant processing conditions may affect adhesiveperform ance. If any of these parameters are changed,material performance must be validated using the newparameters.3.6 TEST MATRIXThe test matrix below and more detailed requirements referen
21、ced inthis specification identify the testing requirements for each materialspecification.Total Thickness, mm As Specified on Engineering Drawing(ASTM D 461)Total Mass, kg/m2, max 2.68(ASTM D 461, w/o release liner)Damping Loss Factor, min(ASTM E 756, 200 hz). At 0 C 0.09. At 15 C 0.15. At 30 C 0.08
22、. At 45 C 0.02. At 60 C 0.01ENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 5 of 9 Peel Adhesion, N, min. No Bake, 1 h dwell 4.0. No Bake, 24 h dwell 4.0. No Bake, 250 h dwell 6.0. Bake & 250 h 88 C 20 or cohesive failure. Bake & 250 h 38 C & 100 % RH 10 or cohesive failureSustained Heat
23、 and Sag XCold Adhesion X(FLTM BV 101-02)E-Coat Compatibility(FLTM BV 119-01)Wash Resistance(FLTM BV 116-01)Severe Wash Resistance(FLTM BV 116-02)Foil Thickness, mm(ASTM D 461)Flammability, mm/minute, max X(ISO 3795/SAE J369)Fogging (FLTM BO 116-03), min 60Odor (SAE J1351), max 2(or no worse than ma
24、terialcurrently approved)Note: X = Requirement is specified in the appropriate paragraphs of thisspecification which follow.3.7 DAMPING LOSS FACTOR As specified in TEST MATRIX(ASTM E 756, avg of 5 beams,at each temperature, 200 Hz,15 C increments from 0 - 60 C)Test Conditions (unless otherwise speci
25、fied):. 320 x 20 x 0.8 mm clean cold rolled steel Oberst bar. Oberst bar damped one side only. 40 mm root length undamped, 280 mm free length damped. Mass of damping material as specified in test matrix. Cure temp and time as specified by the Matls. Engrg. Activity. Report the composite bar loss fac
26、tor only.Note: The calculated value at 200 Hz is obtained by linearinter polation between the loss factor values of the resonancesdirectly on either side of 200 Hz.ENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 6 of 9 3.8 PEEL ADHESION As specified in TEST MATRIXTest Me thod (also see S
27、AMPLE PREPARATION paragraph above for moredetailed information): Apply 25 x 125 mm length strips of materialto production representative substrate panels. The material may haveto be backed with mylar or duct tape for reinforcement during peel.Suspend panels as oriented in-vehicle during dwell period
28、s and bakecycling. Use low bake and high bake schedules only for materialsth at are processed thru Body and Assembly paint process. Usepredelivery bake and no bake schedules (oriente d as in-vehicle) only,for materials applied at Body and Assembly Division after paintprocessing. Pull ninety degrees
29、to surface at a rate of 305mm/minut e. The peel value reported must be that obtained for theaverage load.3.9 SUSTAINED HEAT AND SAG No sag ging or material degradationTest Me thod (also see SAMPLE PREPARATION paragraph above for moredetailed information): This requirement is for materials that arepr
30、ocessed thru Body an d Assembly paint process only. Apply, orient,and bake (high bake only) 150 x 150 mm test samples to productionrepr esentative substrate panels. Suspend panels as oriented in-vehicle during the bak e cycle. No smoking, material degradation, orsag of the material is allowed.3.10 C
31、OLD ADHESION No loss of adhesion(FLTM BV 101-02, Steps 9 - 12,Four(4)cycles)Test Me thod (also see SAMPLE PREPARATION paragraph above for moredetailed information): Apply 75 x 150 mm test samples to productionrepres entative substrate panels. Conduct cold slam procedure afterlow b ake and after high
32、 bake for materials that are processed thruBody an d Assembly paint process. Suspend panels as oriented in-vehicle during the bake cycle. Conduct cold sl am procedure on panelswithout bake also, for materials applied at Metal Stamping Division.Conduct cold slam procedure on panels without b ake and
33、on panels withpredelivery bake (oriented as in-vehicle) only, for materials appliedat Body and Assembly Division after paint processing.3.11 E-Coat Compatibility No film irregularities(FLTM BV 119-01) or material incompatibilities3.12 Wash Resistance Shall remain unaffected(FLTM BV 116-01) No edge l
34、oss or displacement3.13 Severe Wash Resistance Shall remain unaffected(FLTM BV 116-02) No edge loss or displacement3.14 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minuteENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 7 of 9 3.15 FOGGING(FLTM BO 116-03, 3 h at 100 C)Fog Number,
35、min As specified in test matrixFormati on of a clear film, droplets or crystals is cause forrejection.Bond to aluminum foil in 135 C oven for 30 minutes for evaluation.3.16 ODOR, max As specified in test matrix(SAE J1351)The material shall be evaluated after exposure to normal processingconditions.3
36、.17 FUNCTIONAL APPROVALMaterials being evaluated for approval to this specification shall besubject ed to a production trial. Functional trial results must beapproved by the affected assembly operation and Design Engineering.Results shall be made available to Materials Engineering prior tomaterial a
37、pproval and release.3.18 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manuf actured parts shall bespecified on the Engineering drawing, Engineeri ng parts specificationand/or performance specifications. All critical areas with respectto these properties shall be clearly designate
38、d on the engineeringdrawing.3.19 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal 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 lab
39、eling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the w
40、ritten approval of the Materials Engineeringactivity. Test data, test samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Mat
41、erial Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 8 of 9 4. APPROVAL OF MATERIALSMate rials defined by this specification must have prior approval by therespo nsible Materials Engineering activity. Suppliers desiring approvalof their materials shall firs
42、t obtain an expression of interest from theaffect ed Purchasing, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized representative of th
43、e test faci lity, demonstratingfull compliance with all the requirements of this specification (testresults, not nominal values), the material designation a nd code number, andtest specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specif
44、ication and on anassessment of suitability for i ntended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information given below is provided for clarification and assistancein meeting the requirements
45、of this specification.5.1 MATERIAL TEST DATA FORMSelected testing from the list below, mutually agreed to between thesupplier and the respo nsible Materials Engineering Activity, must besubmitted prior to ini tial material approval. Selected tests, whichare inc luded in the material control plan sho
46、uld be updated asreferenced on the control plan.Specification Supplier GSDB Code Product Code Manufacturing Plant Location Physical/Chemical Properties Selected Test Results Product LimitsTest (Mean, Std Dev, (99.99 4 % ofsample size) produ ction)Total Thickness, mm (ASTM D 461, w/o release liner)To
47、tal Mass, Kg/m2 (ASTM D 461, w/o release liner)Damping Loss Factor(ASTM E 756, 200 hz). At 0 C _ . At 15 C . At 30 C . At 45 C . At 60 C Peel Adhesion, N, minENGINEERING MATERIAL SPECIFICATIONWSS-M4G64-AWP 3948-b Page 9 of 9 . No bake, 1 h dwell _ _ _ _. No bake, 24 h dwell _ _ _ _. No bake, 250 h d
48、well _ _ _ _. Bake & 250 h at 88 C _ _ _ _. Bake & 250 h at 38 C & _ _ _ _100 % r.h.Sustained Heat and Sag Cold Adhesion (FLTM BV 101-02) E-Coat Compatibility (FLTM BV 119-01)Wash Resistance (FLTM BV 116-01) Severe Wash Resistance (FLTM BV 116-02) Foil Thickness, mm (ASTM D 461)Specific Gravity (ASTM D 792, base mater
