1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 12 06 Revised and Retyped was: 10 pages1984 12 12 B/701897 TP Spec number revised 1983 06 27 SM/EQ 5371 TP ReleasedWP 3948-a Page 1 of 4 SEALER, LOCKING-ANAEROBIC-MEDIUM STRENGTH, THIXOTROPIC ESK-M4G24
2、7-A11. SCOPEThe material defined by this specification is a thixotropic one component,anaerobic dimethacrylate base sealing and locking compound of mediumstrength.2. APPLICATIONThis material was originally released for sealing and locking of threadedplugs in cylinder block and core plugs in cylinder
3、 block and cylinder head.3. REQUIREMENTS3.1 STATISTICAL PROCESSSuppliers must conform to the requirements of Ford Quality SystemStandard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatistical tools must be used to analyze proces
4、s/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/orthermal analysis of material/parts supplied to this specification.The IR spectra and thermograms establishe
5、d for initial approval shallconstitute the reference standard and shall be kept on file at thedesignated material laboratory. All samples shall produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll tes
6、t values indicated 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 Blue or as specified on Engineering drawing.3.5 DENSITY
7、 at 23 C 1.06 +/- 0.1 g/cm3(ASTM D 1475)NOT TO BE USED FOR NEW DESIGN2014 N Status No replacement L. Sinclair, NAENGINEERING MATERIAL SPECIFICATIONESK-M4G247-A1WP 3948-b Page 2 of 4 3.6 VISCOSITY, mPa.s T olerance +/- 20 %(ASTM D 1084, Brookfield Type RVF alternativeRVT/D, measuring time 1 minute fo
8、r each record)Spindle No.Rotational Frequency 10/min 20/min 50/min3.6.1 At 20 C 1900 1200 7003.6.2 At 25 C 1800 1150 6603.7 OPEN TIMEAfter coating a degreas ed steel surface with sealer, the sealer mustnot set when left exposed to air for minimum 72 h at 23 +/- 2 C.3.8 SHEAR STRENGTHFor details of a
9、ssembly see attached sketch.Test Method: Sleeves a nd pins are degreased, sealant applied on thepin and the inside of the sleeve, and the two parts fitted togetherwithin one minute. The max load necessary to press out the pin isthen measured with a feed rate of 25 mm/minute a nd the shear strengthca
10、lculated on the contact area of the pin to sleeve.3.8.1 3 h at 23 +/- 2 C after Assembling,minimum 50 % of final cure strength (3.8.3)3.8.2 24 h at 23 +/- 2 C after Assembling 650 - 2000 N/cm23.8.3 After Ageing 900 - 2000 N/cm2(3 h at 23 +/- 2 C, 14 d at 70 +/- 2 C,1 h at 23 +/- 2 C)3.8.4 24 h at 23
11、 +/- 2 C after assembling 150 N/cm2and tested at 130 +/- 2 C, min(Conditioning at 130 +/- 2 C prior totest: 30 minutes)3.8.5 After Oil Immersion, max - 20 % based on(24 h at 23 +/- 2 C, 72 h immersion in clause 3.8.4engine oil according to SS-M2C9011-A at120 +/- 2 C, 1 h at 23 +/- 2 C)3.8.6 After An
12、tifreeze Immersion, max - 80 % based on(24 h at 23 +/- 2 C, 72 h immersion in clause 3.8.4antifreeze according to S-M97B1002-Adiluted 50/50 with water at 100 C, 1 hat 23 +/- 2 C)ENGINEERING MATERIAL SPECIFICATIONESK-M4G247-A1WP 3948-b Page 3 of 4 3.8.7 Shear Strength, Nut and Bolt Assembly(FLTM EU-B
13、V 55-1, except M8 nuts, grade5 min, thickness 6, 14 -6.5 mm class 6Hand bolts grade 5.8 min, class 6g. Bothfinished S72 as shown in SZ100 StandardParts Manual. Degrease nuts and boltsprior to test)Release torque measured.3.8.7.1 24 h at 23 +/- 2 C After 1.0 NmAssembling, min3.8.7.2 After Ageing 1.0
14、- 5.0 Nm(3 h at 23 +/- 2 C, 14 d at70 +/- 2 C, 1 h at 23 +/- 2 C)3.8.7.3 After Oil Immersion, max - 20 % based on(3 h at 23 +/- 2 C, 72 h clause 3.8.7.2immersion in engine oilaccording to SS-M2C9011-A at120 +/- 2 C, 1 h at 23 +/- 2 C)3.8.7.4 After Antifreeze Immersion, max - 80 % based on(3 h at 23
15、+/- 2 C, 72 h clause 3.8.7.2 immersion in anti-freeze accordingto S-M97B1002-A diluted 50/50 withwater at 100 C, 1 h at 23 +/- 2 C)3.9 QUALITYThe material shall be of uniform quality and must not separatewhile storage.3.10 SUBSTANCE CONTROLLegal, health, safety a nd environmental constraints may app
16、ly to themate rials which are submitted for approval to this specification.Refer to Engineering Material Specification SKM-99P9999-A.3.11 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally g
17、ranted.ENGINEERING MATERIAL SPECIFICATIONESK-M4G247-A1WP 3948-b Page 4 of 4 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 ability t
18、o 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 submitte
19、d with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Materials Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approva
20、l 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. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivi
21、ty 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 nominal values), the material designation a nd code number, andtes t specime
22、ns for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for intended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL
23、INFORMATIONThe information given below is provided for clarification and assistancein meeting the requirements of this specification.5.1 STORAGE STABILITY(From date of receipt at Ford Motor Company)Minimum 12 months when stored in sealed, unopened drums containingminimum 250 mL material out of direct sunlight at ambienttemperatures of 5 to 28 C.
