1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1987 12 18 SM/EQ 1579 TP ReleaseWP 3948-a Page 1 of 9 TAPE, ADHESIVE - TWO SIDE PRESSURE ESK-M3G162-A1SENSITIVE - E/VAC - EXTERIORTAPE, ADHESIVE - TWO SIDE PRESSURE ESK-M3G162-A2SENSITIVE - E/VAC -
2、EXTERIORTAPE, ADHESIVE - TWO SIDE PRESSURE ESK-M3G162-A3SENSITIVE - PUR - EXTERIOR1. SCOPEThe materials defined by these specifications are polyet hylene vinylacetatecop olymer (ESK-M3G162-A1/-A2) or polyether polyurethane (ESK-M3G162-A3)foam ta pes, coated on both sides with a pressure sensitive, c
3、ross linkedacrylic adhesive. One side is protected with a release paper or film.2. APPLICATIONThese specifications were released originally for materials to retainexterio r bodyside mouldings to enameled surfaces (FLTM EU BI 3-2 Bb) andsmoot h stone peck resistance paint (ESK-M99J340-A2) and to bond
4、 rubberparts to bumper.3. REQUIREMENTS3.1 STATISTICAL PROCESSSuppl iers must conform to the requirement of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatist ical tools must be used to analyze proces
5、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/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms establish
6、ed for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll product IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.ENGINEERING MATERIAL SPECIFICATIONESK-M
7、3G162-A1/-A2/-A3WP 3948-b Page 2 of 9 3.3 CONDITIONING 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 ot
8、herwise specified.3.4 COLOR b lack or as speci-fied on Eng. drawing3.5 THICKNESS ESK-M3G162-A1/-A3 0,85 +/- 0,15 mm(ASTM D 1000, without liner) ESK-M3G162-A2 1,30 +/- 0,15 mm3.6 HARDNESS SHORE “A“(ASTM D 2240)3.6.1 Original ESK-M3G162-A1/-A2 40 +/- 8ESK-M3G162-A3 27 +/- 53.6.2 After Ageing, min. ESK
9、-M3G162-A1/-A2 38 +/- 8(70 h at 100 +/- 2 C) ESK-M3G162-A3 24 +/- 53.7 TENSILE STRENGTH(ASTM D 412, Die “C“)3.7.1 Original, min. 220 N/cm23.7.2 After Ageing, min. 220 N/cm2(70 h at 100 +/- 2 C)3.8 ELONGATION(ASTM D 412, Die “C“)3.8.1 Original, min. ESK-M3G162-A1/-A2 300 %ESK-M3G162-A3 200 %3.8.2 Aft
10、er Ageing, min. ESK-M3G162-A1/-A2 300 %(70 h at 100 +/- 2 C) ESK-M3G162-A3 180 %3.9 TEAR STRENGTH(ASTM D 624, Die “B“)3.9.1 Original, min. 120 N/cm3.9.2 After Ageing, min. 120 N/cm(70 h at 100 +/- 2 C)3.10 OZONE RESISTANCE, Rating “0“(FLTM EU-BP 1-1, 20 % elongation)3.11 LOW TEMPERATURE FLEXIBILITY
11、No cracking(FLTM BN 102-1)ENGINEERING MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 3 of 9 3.12 WATER ABSORPTION3.12.1 Vacuum, max. ESK-M3G162-A1/-A2 3,5%(ASTM D 1056) ESK-M3G162-A3 7,0%3.12.2 Static, max. ESK-M3G162-A1/-A2 1,0 %ESK-M3G162-A3 4,0 %(ASTM D 1056, except immerse for24 h at
12、20 +/- 2 C under atmosphericpressure)3.13 MIGRATION STAINING noneTest MethodApply the tape to a freshly painted white or lig ht blue painted panel(FLTM EU BI 3-2 Bb) and expose for 200 h in the Fluorescent SunlampCabinet (see FLTM EU BU 52-2) and evaluate test panel.3.14 TENSILE ADHESION, min. ESK-M
13、3G162-A1/-A2 50 N/cm2ESK-M3G162-A3 35 N/cm2Test MethodCaref ully bond the mating surfaces of two test blocks (see Fig. 1)together and press down firmly to force out trapped air to ensure agood bond.Immed iately after bonding clamp both ends in the jaws of a tensiletes ter and determine the tensile f
14、orce required to separate theblocks. Rate of pull 300 mm/min.3.15 SHEAR ADHESION, min. 60 N/cm2Test MethodPre pare 3 test specimen (see Fig. 2) with each of the followingmaterial combinations:a) Painted Steel Panel (FLTM EU BI 3-2 Bb)/Chromium Plating, RA=0,20 micrometreb) Painted Steel Panel (FLTM
15、EU BI 3-2 Bb)/Stainless Steel Panel, RA=0,06 micrometrec) Painted Steel Panel (FLTM EU BI 3-2 Bb)/Anodized Aluminum Panel, RA=0,05 micrometred) Painted Steel Panel (FLTM EU BI 3-2 Bb)/Smooth PVC Production Material according to SM4D4601-AThe mat ing surfaces must be pressed together firmly to force
16、outtrapped air and insure a good bond. After 24 hours conditioning at23 +/- 2 C expose test specimen of each material combination to thebelow environment. 4 h after completion of the exposures (3.15.2),measure shear adhesion in tensile testing machin e at a jaw separationrate of 12 mm/min.ENGINEERIN
17、G MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 4 of 9 3.15.1 Original(14 d at 23 +/- 2 C)3.15.2 After Environmental Cycling(10 cycles with one cycle consisting of 4 h at -40 +/- 1 C,4 h at 80 +/- 2 C and 16 h at 38 +/- 1 C and 98 +/- 2 %relative humidity)3.16 PEEL ADHESION, min. 5 N/cm(
18、AST M D 1000, except apply a 0,025 mm thick polyester film to theunlined adhesive side of the tape before testing and determineadhesion 1 h after bonding with the following materials:a) Anodized Aluminum, RA=0,20 micrometreb) Stainless Steel, RA=0,06 micrometrec) Chromium Plating, RA=0,05 micrometre
19、d) Painted Steel according to FLTM EU BI 3-2 Bbe) Smooth PVC Production Material according to SM4D4601-A3.17 HOLDING POWER, min. 150 hTest MethodPrepare 2 specimen (see Fig. 2) of material comb ination b) and d) per3.15 and con dition for 24 h at 23 +/- 2 C. Hang one test specimenvertically at 23 +/
20、- 2 C and the other one vertically at 70 +/- 1 C.Gently attach 1 kg mass es to both specimens. Both bonded assembliesmust support the 1 kg masses for a minimum of the time specifiedabove without failure.3.18 COLD SHOCK RESISTANCE no loss ofadhesionTest Method1. Bond five stainless steel, RA=0,06 mi
21、crometre, discs (see Fig. 3)with a mass of 25 g, 25 mm from one e dge of a steel panel paintedwith sto ne peck resistant one pack material according to ESK-M99J340-A2 a nd according to FLTM EU BI 3-2 Bb as shown in Fig. 3and condition for 72 h at 23 +/- 2 C.2. Mount the panel in the slamming test fi
22、xture according to FLTM BV151-1 so tha t the bonded discs face out and are at the bottom ofthe test fix ture and place in a cold box maintained at -40 C +/-1 C for 4 h. Allow the panel to fall from a horizontal position10 times in rapid succession. Remove panel from slamming fixtureand condition for
23、 2 h at 23 +/- 2 C.3. Repe at this cycle 9 times and observe whether any of the discshave fallen off after 10 cycles (100 slams).ENGINEERING MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 5 of 9 3.19 THERMAL SHOCK RESISTANCE no loss ofadhesionTest Method1. Prepare specimen as outlined und
24、er clause 3.18, point 1.2. Subject bonded assembly to the following cycle:a) 4 h water immersion at room temperatureb) 4 h minimum at -40 +/- 1 Cc) Direct steam blast 50 t o 70 mm from each disc for 15 secondsminimum using a steam generator as described in FLTM EU-BI 7-3 or equivalent.3.20 PETROL RE
25、SISTANCE, min. ESK-M3G162-A1/-A2 35 N/cm2ESK-M3G162-A3 25 N/cm2Test MethodPrepare three specimen (see Fig. 2) with material combination b) andd) per 3.15. After conditioning for 24 h at 23 +/- 2 C soak testspecimen in ASTM D Fuel B (ASTM D 471) for 1 h. Allow samples to dryin air at 23 +/- 2 C fo r
26、5 minutes and determine shear strength in atensile testing machine at a jaw separation rate of 12 mm/min.3.21 RESISTANCE TO DEWAXING ESK-M3G162-A1/-A2 35 N/cm2COMPOUNDS, min. ESK-M3G162-A3 30 N/cm2Test MethodPrepare three specimens (see Fig. 2) with materi al combination a) andb) per 3.15. After con
27、 ditioning for 1 h at 23 +/- 2 C immerse for 1minute in U-MG 009-021 waxing compound. Dewax after 72 h with U-MB005-8000 dewaxing compo und. After 2 h at 23 +/- 2 C determine shearstrength in a tensile t esting machine at a jaw separation rate of 12mm/min.3.22 HEAT RESISTANCE no displacementTest Met
28、hodPrepare one test specimen (see Fig. 2) with material combination a)and b) per 3.15. After conditioning for 1 hour at 23 +/- 2 C applya 2,25 N force to one end of the test specimen a nd hang it verticallyin a mechanical convection oven at 120 +/- 2 C f or 30 minutes. Allowthe speci men to cool to
29、23 +/- 2 C and determine whether anydisplacement from the original bonded position has occurred.3.23 LINER REMOVAL, max. 3,0 N/cm(ASTM D 1000, except apply the unlined adhesive side of the tape toa clean metal panel and measure the force required to peel the linerfrom the tape)ENGINEERING MATERIAL S
30、PECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 6 of 9 3.24 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pr ior to making any changes in the properties, composition,co nstructi
31、on, color, processing or labelling 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 pro
32、posed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification areto be submitted with the report.Substance restrictions imposed by law, regulations or Ford apply tothe materials addressed by this document. The restrictions a
33、redefined in Engineering Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on the engineeringdocument for the application.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering a
34、ctivity. 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 Engineeringactivity its own laboratory rep ort to the specifi
35、cation (test results, notnominal values), the material designation and code number, and testspecim ens for Ford evaluation. Upon approval, the material will be addedto the Engineering Material Approved Source List.5. GENERAL INFORMATIONThe information given below is provided for assistance and clari
36、ficationand does not represent requirement(s) to this specification.5.1 STORAGE STABILITY(from date of receipt at FMC)Minimu m 12 months when stored at temperatures below 30 C. Thereleas e liner shall remove easily when measured by hand peelexamination and shall n ot change appreciably after 12 mont
37、hs storagebelow 30 C (to be certi fied by supplier on “Initial Sample Report“).ENGINEERING MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 7 of 9 5.2 APPLICATION CRITERIA. Only apply tape to absolutely clean and dry surface. Mati ng surface should be matched (contoured or paralleled) toens
38、ure 100 % contact of the bond area. Onc e tape is applied to part e.g. ornament or body side mouldingand has been bonded, and for any reason removed, it should not bere-used. If the adhesive surface of the tape becomes soile d, the tape-backedpart should not be used unless tape is replaced. The adhesive side of the tape shall not be touche d or handled, oncethe release liner has been removed.ENGINEERING MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 8 of 9 ENGINEERING MATERIAL SPECIFICATIONESK-M3G162-A1/-A2/-A3WP 3948-b Page 9 of 9
