1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 12 15 Revised and Retyped was: 10 pages1985 03 14 B/001676 TP Revised 3.9 and 3.111984 06 05 SM/EQ 5464 TP ReleasedWP 3948-a Page 1 of 6 SEALER, BUTYL RUBBER, SOLVENT FREE ESK-M4G261-A1. SCOPEThe mater
2、ial defined by this specification is a solvent free, hotapplication (140 +/- 2 C) butyl rubber sealer with polyisobutyleneplasticizer.2. APPLICATIONThis specification was originally released for material used for bondingand sealing of PVC water shield to door inner panel. Due to solubility inorganic
3、 solvents, the material must be applied in a manner that avoids theformation of fluid pockets on top of the material of e.g. dewaxing compoundto Manufacturing Standard U-MB 005-8000.3. REQUIREMENTS3.1 COLOR Black3.2 SOLIDS, min 99.5 %(FLTM EU-BV 50-10)3.3 ASH, max 25 %(FLTM EU-BV 50-10)3.4 DENSITY a
4、t 20 C 1.16 +/- 0.05 g/cm3(ASTM D 1475)3.5 PENETRATION(Penetration according to ASTM D 937,1.5 N total load mass, 5 s dwell time)3.5.1 As Received (in 0.1 mm)3.5.1.1 At 23 +/- 2 C 73 +/- 53.5.1.2 At - 30 +/- 1 C 28 +/- 53.5.1.3 At 60 +/- 2 C 115 +/- 53.5.2 After Ageing (in 0.1 mm), max - 10 %(14 d a
5、t 80 +/- 2 C)Based on the value obtained under 3.5.1.1.NOT TO BE USED FOR NEW DESIGN2014 N Status No replacement L. Sinclair, NAENGINEERING MATERIAL SPECIFICATIONESK-M4G261-AWP 3948-b Page 2 of 6 3.6 FLOW RATE No flow(FLTM EU-BV 53-1, Method A, except30 minutes at 120 +/- 2 C)3.7 COLD RESISTANCE AFT
6、ER AGEING No loss of adhesion, no chippingTest Method:1) Apply a 250 x 30 x 3 mm ribbon of material under test centrallyto 300 x 100 mm test panels prepared accor ding to FLTM EU-BI 3-2,Method Bb.2) Expose test assemblies in a mechanically convected air dry ovenat 80 +/- 2 C for two weeks.3) After c
7、ooling to room temperature, expose test assemblies andbending fixture ( see FLTM EU-BV 53-4, except 50 mm mandrel) in acold box at - 30 +/- 1 C for 4 hours.4) Wh ile still in the cold box, bend test assemblies within2 seconds around the 50 mm mandrel through an angle of 90 deg.3.8 SHEAR ADHESION3.8.
8、1 At 23 +/- 2 C, min 2.0 N/cm23.8.2 At - 30 +/- 1 C No loss of adhesion3.8.3 At 60 +/- 2 C, min 0.8 N/cm2Test Method:1) Prepare 25 x 125 mm test panels according to FLTM EU-BI 3-2, Method Bb.2) Bond specimens according to Fig. 1 with sample materialheated to 140 +/- 2 C.3) Test shear adhesion at a r
9、ate of pull of 25 mm/minute andcalculate in N/cm2.3.9 PEEL ADHESION, min 3.5 N/cm(FLTM EU-BU 51-1, Method B1, 1a, y = 1 mm,except apply sealer of a temperature of140 +/- 2 C to test panel and cover withPVC sheeting according to SK-M2F9504-A atroom temperature)ENGINEERING MATERIAL SPECIFICATIONESK-M4
10、G261-AWP 3948-b Page 3 of 6 3.10 RESISTANCE TO DEWAXING COMPOUND U-MB 005-8000 No leaksTest Method:1) Pr epare 150 x 300 mm test panels according to FLTM EU-BI 3-2,Method Bb.2) Apply sealer of a temperature of 140 +/- 2 C to test panels in a3 mm bead as shown in Fig. 2 and cover with PVC sheetingacc
11、ording to SK-M2F9504-A.3) Press down sealer bead to a thickness of approx. 1 mm.4) After 2 hours at room temperature, fill assembly with a dewaxingcompound as shown in Fig. 2 and suspend in vertical position for24 hours at room temperature.3.11 COMPRESSION LOAD 300 to 500 N(FLTM EU-BU 14-1, thicknes
12、s 6 mm, width 8 mm)3.12 HEAT AGEINGSpe cimens, prepared according to 3.7, shall show no evidence ofblistering after exposu re in a mechanical convection oven maintainedat 80 +/- 2 C for 2 weeks.3.13 SUBSTANCE CONTROLLegal, health, safety a nd environmental constraints may apply to themate rials whic
13、h are submitted for approval to this specification.Refer to Engineering Material Specification SK-M99P9999-A.3.14 QUALITYThe material shall be of uniform quality free from foreign materialand properties detrimental to normal production use.3.15 SUPPLIERS RESPONSIBILITYAll materials supplied to this
14、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 labeling of the materialorig inally approved under this specification, whether or not suchc
15、hange 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 written approval of the Materials Engineeringactivity. Test data, t est samples and a new
16、 code identification areto be submitted with the request.ENGINEERING MATERIAL SPECIFICATIONESK-M4G261-AWP 3948-b Page 4 of 6 Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Materials Specificatio
17、n WSS-M99P9999-A1.4. 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 Material
18、s 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 the test faci lity, demonstratingful l compliance with all the requirements of this sp
19、ecification (testresults, not nominal 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 intended processes and/or applicati
20、ons. 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 of this specification.5.1 STORAGE STABILITY(From date of receipt at Ford Motor Company)Minimum 12 months when stored at ambient temperature of 5 C to 28 C.ENGINEERING MATERIAL SPECIFICATIONESK-M4G261-AWP 3948-b Page 5 of 6 ENGINEERING MATERIAL SPECIFICATIONESK-M4G261-AWP 3948-b Page 6 of 6
