1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 11 30 Revised and Retyped, was 8 pages1984 06 06 B/701891 TP Suffix changed from I1974 03 27 B/CP7042 TP Last RevisionWP 3948-a Page 1 of 5 ADHESIVE TAPE, TWO SIDE PRESSURE SENSITIVE SK-M3G9503-A1. SCO
2、PEThe material defined by this specification is a two side pressuretransparent non-woven fiber tape, protected with release paper. Theadhesive is based on acrylate resins.2. APPLICATIONThe mat erial is generally used to bond PVC sheeting to clean and greasefree sur faces (e.g. door inner panel) and/
3、or for other applications asspecified on Engineering drawing.3. REQUIREMENTS3.1 COLOR Colorless-transparent3.2 THICKNESS 0.065 - 0.120 mm(ASTM D 1000)Without release paper.3.3 WIDTH As specified on Engineeringdrawing (see 5.2.)3.4 LINER REMOVAL, max 0.95 N/25 mmTest Method: Apply the unlined side of
4、 the tape to a clean metalpan el and measure the force required to peel the liner from theadhesive using the test procedure outlined in ASTM D 1000, Method A.3.5 BRAKING STRENGTH, min 12 N/25 mm(ASTM D 1000)3.5.1 Elongation, max 3 %ENGINEERING MATERIAL SPECIFICATIONSK-M3G9503-AWP 3948-b Page 2 of 53
5、6 SHEAR STRENGTH(FLTM EU-BU 51-1, Method A, Fig. 4, PVCsheeting according to SK-M2F9504-A,production material)a) 2 h after bonding, min 20.0 N/cm2b) 2 h after heat ageing, min 20.0 N/cm23.7 PEEL STRENGTH(ASTM D 1000, Method A; except test panelpreparation according to FLTM EU-BI 3-2)3.7.1 Original,
6、 min 12 N/25 mm(Test after 2 h at room temperature)3.7.2 At 90 +/- 2 C, min 0.5 N/25 mm(2 h after bonding and prior to testcondition for 20 minutes at 90 +/- 2 C)3.7.3 30 Minutes After Humidity Ageing(2 h after bonding, 24 h at 98 +/- 2 %relative humidity and 38 +/- 1 C)Maximum - 10 % based on measu
7、red original value.3.8 RESISTANCE TO DEWAXING COMPOUND No leaksTest Method:1) Prepare 150 x 300 mm test panels according to FLTM EU-BI 3-2.2) Apply test strips of tape to test panels as shown in sketch.3) Cover the whole area of panels with 180 x 300 mm PVC sheeting(pro duction material according to
8、 SK-M2F9504-A) and bond undermaximum finger pressure.4) After 2 hours at room temperature fill the assembly with dewaxingco mpound and suspend in vertical position for 24 hours at roomtemperature.3.9 COLD ADHESION No chippingTest Method:1) Apply a 20 x 19 mm piece of tape to a degreased aluminum foi
9、l(150 x 60 x 0.2 mm) under maximum finger pressure.2) After 2 hours at room temperature expose assembly and a 10 mmdiameter mandrel at - 30 +/- 1 C for 2 hours in a cold box.ENGINEERING MATERIAL SPECIFICATIONSK-M3G9503-AWP 3948-b Page 3 of 53) While still in the cold box, bend the specimen through a
10、n angleof 180 deg in 5 s econds around the mandrel with tape facing awayfrom the mandrel.3.10 QUALITYThe material shall be a smooth, homogeneous mixt ure free from foreignmaterials and properties detrimental to normal production use.3.11 TOXICITYThe material shall be non-toxic and shall not cause sk
11、in rash orirritation to exposed handlers in normal production operations.3.12 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, compos
12、ition,constr uction, color, processing or labeling 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 act
13、ivity 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 request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document.
14、The restrictions aredefined in Engineering Materials Specification 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 express
15、ion of interest from theaffec ted 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 the test faci lity, d
16、emonstratingful l compliance with all the requirements of this specification (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 an
17、assessment of suitability for intended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.ENGINEERING MATERIAL SPECIFICATIONSK-M3G9503-AWP 3948-b Page 4 of 55. GENERAL INFORMATIONThe information given below is provided for clarifi
18、cation and assistancein meeting the requirements of this specification.5.1 STORAGE STABILITY(From date of receipt at Ford Motor Company)Minimum 3 months when stored between 5 C and 28 C.5.2 WIDTH OF TAPE (Second Suffix)A = 8 mm E = 19 mmB = 9 mm F = 25 mmC = 12 mm G = 38 mmD = 15 mm H = 50 mmJ = 30 mmENGINEERING MATERIAL SPECIFICATIONSK-M3G9503-AWP 3948-b Page 5 of 5
