1、c-2 ENGINEERING MATERIAL SPECIFICATION 1986 11 03 1986 05 30 Material Name Specification Number B/021 667 TP Revised Clause 2 SM/EQ5607 TP Re 1 eased TAPE, ADHESIVE, TWO SIDE - ACRYLIC FOAM - EXTERIOR TAPE, ADHESIVE, TWO SIDE - ACRYLIC FOAM - EXTERIOR y. ,y? e.y . . ,.y .iA.i.I* 8 ESK-M3 G13 6 -A5 1
2、. SCOPE The materials defined by these specifications are pressure sensitive acrylic foam tapes with one side protected with a release paper or film, unless otherwise specified. 2. APPLICATION These specifications were released originally for materials to retain exterior PVC mouldings to painted and
3、 unpainted polycarbonate bumpers using primer according to ESK-M2G264-A2. 3. REQUIREMENTS 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required for material/source approval. Approp
4、riate statistical tools must be used to analyze process/product data so that variation in the final product is continuously reduced. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to th
5、is specification. The IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under
6、the same conditions. Date Release No. I Release/Revision WP 3948-a Page 1 of 12 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 E and 50 +/- 5 % relative humidity for not less than 24 h prior to testing an
7、d tested under the same conditions unless otherwise specified. 3.4 COLOR 3.5 THICKNESS (without liner) 3.6 DENSITY AT 20 E (ASTM D 1564, Suffix W) white or as specified on Engineering drawing , +/- 0, mm 0,8 +/- 0,l mm 500 - 900 kg/m3 3.7 TENSILE STRENGTH (ASTM D 412, Die IICll) 3.7.1 Original, min.
8、 50 N/Cm2 3.7.2 After Ageing, min. (70 h at 100 +/- 2 E) 50 N/Cm2 3.7.3 After Water Immersion, max. -25 % (1 h in distilled water of 23 +/- 2 E) The specimens are to be tested immediately after removal from water immersion. They may be lightly blotted but not squeezed dry. 3.8 ELONGATION (ASTM D 412
9、, Die IICll) 3.8.1 Original, min. 3.8.2 After Ageing, max. (70 h at 100 +/- 2 E) 3.8.3 After Water Immersion, min. (For Test Method see 3.7.3) 3.9 TEAR STRENGTH (ASTM D 624, Die IlBIl) 3.9.1 Original, min. 3.9.2 After Ageing, max. (70 h at 100 +/- 2 E) 500 % -25 % 500 % 30 N/cm -25 % WP 3948-b Page
10、2 of 12 3.9.3 After Water Immersion, max. -25 % (For Test Method see 3.7.3) 3.10 LOW TEMPERATURE FLEXIBILITY no cracking (FLTM EU-BN 2-1, except 50 mm dia mandrel and -30 +/- 1 E, bend specimen through an angle of 180 deg within 10 s) 3.11 WATER ABSORPTION, max. (ASTM D 1056, 24 h normal pressure) 3
11、.12 MIGRATION STAINING 3% none TEST METHOD Apply the tape to a freshly white or light blue painted panel (FLTM EU-BI 3-2) and expose for 200 h in the Fluorescent Sunlamp Cabinet (see FLTM EU-BU 52-2). 3.13 TENSILE ADHESION, min. 48 N/Cm2 TEST METHOD Carefully bond the mating surfaces of two test blo
12、cks (see Fig. 1) together and press down firmly to force out trapped air to ensure a good bond. Immediately after bonding clamp both ends in the jaws of a tensile tester and determine the tensile force required to separate the blocks. Rate of pull 300 mm/min. 3.14 SHEAR ADHESION TEST METHOD Carefull
13、y bond the mating surfaces of two specimens (see Fig. 2) together and press down firmly to force out trapped air to ensure a good bond. After 24 conditioning at room temperature, expose test specimens to following environments. Four hours after completion of exposure, measure the shear adhesion in a
14、 tensile tester at a jaw separation rate of 25 mm/min. 3.14.1 Original (72 h at 23 +/- 2 E) ESK-M3G136-A5, min. ESK-M3G136-A6, min. 30 N/Cm2 50 N/Cm2 3.14.2 After Heat Ageing no loss of adhesion (14 d at 70 +/- 2 E, 1 h at RT) WP 3948-b Page 3 of 12 3.14.3 After Humidity Ageing no loss of adhesion (
15、14 d at 38 +/- 1 E and 98 +/- 2 % relative humidity, 1 h at RT) 3.14.4 After Environmental Cycling no loss of adhesion (10 cycles, with one cycle consisting of 4 h at -40 +/- 1 E, 4 h at 80 +/- 2 E and 16 h at 38 +/- 1 C and 98 +/- 2 % relative humidity, 1 h at RT) 3.15 PEEL STRENGTH, min. a) 9 N/cm
16、 width b) 25 N/cm width TEST METHOD ASTM D 1000, except apply an approx. 0,025 mm polyester film or suitable equivalent to the unlined adhesive side of the tape before testing and determine adhesion at 180 deg to polished stainless steel, smooth polycarbonate (according to ESK-M4D441-A) painted and
17、unpainted production material (with primer) and smooth PVC material (according to SKM-99D9571-A), production material. a) 1 h after bonding and b) 14 d at 70 E, 1 h at RT NOTE: Test values must be determined on both the roll and liner side of the tape. 3.16 HOLDING POWER TEST METHOD Carefully bond t
18、he mating surfaces of two specimens (see Fig. 2) together and press down firmly to force our trapped air to ensure a good bond. Condition for 24 h at room temperature. Suspend one specimen at room temperature and the other at 70 +/- 2 E. Gently attach a 10 N force to the lower end of each specimen.
19、All bonded assemblies must support this force without failure for the time specified below. 3.16.1 At Room Temperature, min. 100 h 3.16.2 At 70 +/- 2 E, min. 100 h WP 3948-b Page 4 of 12 3.17 ENVIRONMENTAL RESISTANCE no loss of adhesion TEST METHOD la. Bond to enameled panels (3OOx3OOmm) standard te
20、st pieces using ESK-M3G136-A5 respectively ESK-M3G136-A6 (see Fig. 3) and condition for 72 h at room temperature. The mating surfaces must be pressed down firmly to force out trapped air to ensure a good bond. lb. Fasten sections from production polycarbonate bumpers with PVC mouldings to steel pane
21、ls (3OOx3OOmm) according to Fig. 4 and condition for 72 h at room temperature. 2. Expose test assemblies four times to a cycle as follows 4 h at -40 +/- 1 E 4 h at 80 +/- 2 E 16 h at 38 +/- 2 E and 98 +/- 2 % RH Mount the assemblies in the slamming test fixture (see FLTM EU- BV 51-1, Load “A“) so th
22、at the bonded parts face outward and are at the bottom of the test fixture. Allow the assemblies to fall from a horizontal position 10 times in rapid succession. Remove panel from slamming fixture and condition for 2 h at room temperature. 3. Examine for evidence of loss of adhesion. 3.18 THERMAL SH
23、OCK RESISTANCE no loss of adhesion TEST METHOD Condition bonded assemblies prepared according to 3.17 (Fig. 3) for 72 h at room temperature and subject to the following cycle: a) 4 h water immersion at 23 +/- 2 E b) 4 h at -40 +/- 1 E c) direct steam blast 50 - 70 mm from each part for 15 s minimum,
24、 using a steam generator as described in FLTM EU-BI 7-3 or equivalent WP 3948-b Page 5 of 12 3.19 3.20 3.21 3.22 3.23 PETROL RESISTANCE, min. 30 N/Cm2 TEST METHOD Prepare test specimens according to 3.14 and condition for 24 h at room temperature. Immerse test specimens in Fuel B according to ASTM D
25、 471 for one hour. Allow to dry for 5 min at room temperature and determine shear strength in a tensile tester at a jaw separation rate of 25 mm/min. RESISTANCE TO DEWAXING COMPOUNDS, min. 30 N/Cm2 TEST METHOD Prepare test specimens according to 3.14 and condition for 24 h at room temperature. Immer
26、se for 1 min in U-MG 009-021 protective wax compound. Remove wax coating after 72 h by sponging with a plentiful quantity of dewaxing fluid U-MB 005-8000. After 5 to 10 min immerse in fresh dewaxing fluid for 1 min and rinse with 30 - 40 E2 warm tap water. After 16 h at room temperature determine sh
27、ear strength in a tensile tester at a rate of pull of 25 mm/min. HEAT RESISTANCE no displacement TEST METHOD Prepare test specimens according to 3.14 and condition for 2 h at room temperature. Gently attach a 2,25 N force to the lower end of the test specimens and suspend in a forced ventilated dryi
28、ng oven maintained at 120 +/- 2 E2 for 30 min. Allow specimens to cool to room temperature and examine whether any displacement from the original bonded position has occurred. SOFTENING POINT At 2,25 N applied force, min. 120 E2 TEST METHOD ASTM D 816, except use test specimens per clause 3.14. Main
29、tain oven temperature at 50 E2 for 15 min and then increase by 2,5 E2/5 min until bond failure. LINER REMOVAL 1, O - 4, O N/cm width ASTM D 1000, except apply the unlined adhesive side of the tape to a clean metal panel (or use a section of a production part) and measure the force required to peel t
30、he liner from the tape. WP 3948-b Page 6 of 12 3.24 3.25 BREAKAWAY/CONTINUOUS PEEL (N/cm width) (FLTM BN 113-1, except use production materials, smooth polycarbonate bumper material acc. to ESK-M4D441-A, both painted and unpainted but with primer) 3.24.1 3.24.2 3.24.3 3.24.4 3.24.5 3.24.6 3.24.7 Ori
31、ginal, min. (1 h at 23 +/- 2 E after bonding) Measured at Heat, min. (3d at 23 +/- 2 E, 30 min at 90 +/- 2 E, measured at 90 +/ Measured at Cold, min. (3d at 23 +/- 2 E, 4 h at minus 30 +/- 1 E, measured at minus 30 +/- 1 E) Heat Aged, min. (7 d at 70 +/- 2 E, 1 h at 23 +/- 2 E) Condensing Humidity,
32、 min. (3 d at 23 +/- 2 E, 7 d at 38 and 98 +/- 2 % R.H.) Fuel B Immersion, min. 55/15 10/10 90/15 90/15 60/15 t/- 2 E (3 d at 23 +/- 2 E, 1 h immersion in Fuel B according to ASTM D 471 at 23 +/- 2 E) Immersion in Diesel Fuel, min. (3 d at 23 +/- 2 E, 1 h immersion in Diesel Fuel at 23 +/- 2 E) SUPP
33、LIERS RESPONSIBILITY 55/10 55/10 All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes in the properties, composition, construction, color, processing or labelling of the material
34、 originally approved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engineering activity of the proposed changes and obtain the written approval of
35、the Materials Engineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance restrictions imposed by law, regulations or Ford apply to the materials addressed by this document. The restrictions are defined in Engineering Material Specifica
36、tion WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document for the application. WP 3948-b Page 7 of 12 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers
37、 desiring approval of their materials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the supplier shall submit to the affected Materials Engineering activity its own laboratory report to the specification (test resu
38、lts, not nominal values), the material designation and code number, and test specimens for Ford evaluation. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION 5.1 STORAGE STABILITY (from date of receipt at FMC) Minimum 12 months when st
39、ored at temperatures below 30 E. The release liner shall remove easily when measured by hand peel examination and shall not change appreciably after 12 months storage below 30 E (to be certified by supplier on “Initial Sample Report“). 5.2 APPLICATION CRITERIA . Only apply tape to absolutely clean a
40、nd dry surface. . Mating surface should be matched (contoured or parallel) to ensure 100 % contact of the bond area. . Once tape is applied to part e.g. ornament or body side moulding and has been bonded, and for any reason removed, it shall not be re-used. . If the adhesive surface of the tape beco
41、mes soiled, the tape- backed part shall not be used unless tape is replaced. . The adhesive side of the tape shall not be touched or handled, once the release liner has been removed. WP 3948-b Page 8 of 12 I r li shad poliert Fig. 1 Abb, 1 WP 3948-b Page 9 of 12 Test Speclmen/Probekrper aLe6-1, Bond
42、ing Area polished Lrubcjender Stahl, Kebffaehe poliert Fig. 2 Abb. 2 WP 3948-b Page 10 of 12 c BI 5-2, Method 1-: Lackiertes Pdfblech Stainless steel disc, 25 ia tiiaeter mass 25 g, bonding area pollshed Scheibe aua nichtrostendem Stahl, 25 m , &sse 25 g, poliert WP 3948-b Page 11 of 12 Fig. 4 Abb, 4 WP 3948-b Page 12 of 12
