1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 10 17 Revised Inserted 3.0; Deleted 3.1, 3.7, 4 1982 06 02 Released CDM1-EC904270-6 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 4 TAPE, ETHYLENE IONOMER - PRESSURE SENSITIVE EXTERIOR ESB-M3G132-
2、A UNDERBODY 1. SCOPE The material defined by this specification is a flexible clear or tinted paper backed, ethylene ionomer film with a water clear pressure sensitive adhesive suitable for exterior applications. 2. APPLICATION This specification was released originally for material used to provide
3、an insulation for bumper systems involving dissimilar metals to preclude galvanic corrosion. 3. REQUIREMENTS: 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 PHY
4、SICAL PROPERTIES 3.2.1 Tensile strength, min 3,800 psi (26 MPa) (ASTM D 882, Method “A“, 1 x 6 in (25 x 150 mm) sample, 1 in (25.4 mm) distance between bench marks, jaw spaced at start 4 in (100 mm), pulling speed 12 in (300 mm)/min) Elongation, min 250% 3.2.2 Tear Strength, min 4 lb (1.8 kg) (ASTM
5、D 1938) 3.2.3 Adhesion (ASTM D 1000, except determine adhesion to steel and chrome plated steel, panel size 6 x 24 in (152 x 610 mm) min) As Received, min 48 oz/in (525 N/m) width Aged, min 60 oz/in (657 N/m) width ENGINEERING MATERIAL SPECIFICATIONESB-M3G132-APrinted copies are uncontrolled Copyrig
6、ht 2005, Ford Global Technologies, LLC Page 2 of 4 Test Method: Expose duplicate samples to each of the following conditions: 72 h at 70 C. 400 h weatherometer, per FLTM BO 101-01. 168 h at 38 C and 95 - 100% relative humidity. 10 cycles consisting of 4 h at 70 C, 4 h at 38 C and 95 - 100% relative
7、humidity, and 16 h at -30 C. Samples shall be conditioned for 48 h at 23 +/- 2 C prior to exposure. Tests shall be completed within 1 h after removal from the conditioning environment. The cycle test samples shall be allowed to recover to 23 +/- 2 C prior to test. 3.3 FILM PROPERTIES 3.3.1 Appearanc
8、e The film and adhesive shall be transparent - clear or tinted. 3.3.2 Thickness (ASTM D 1000) Film 0.006 - 0.008 in (0.15 - 0.20 mm) Film and Adhesive 0.0075 - 0.010 in (0.19 - 0.25 mm) 3.4 RESISTANCE PROPERTIES 3.4.1 Sample Preparation Resistance properties test shall be conducted using 3 x 6 in (7
9、6 x 152 mm) sized steel and chrome plated steel panels. The test panels shall be solvent wiped with M-14J147 Petroleum Naphtha prior to applying the film per the following procedure: Peel off the backing paper from the film in a smooth, continuous motion. Do not pull the film from the paper. Liberal
10、ly apply a test solution of 5% sodium chloride to the panel surface. Apply some of the test solution to adhesive side of film. Position the film on the panel. Using a plastic squeegee, smooth out the film using firm overlapping strokes, working from the center of the panel. Carefully work out all ai
11、r bubbles. The film shall fully cover the face of the test panel. Test panels with applied film shall be conditioned for 48 h at 20 - 25 C and 50 +/- 5% relative humidity prior to starting the tests. ENGINEERING MATERIAL SPECIFICATIONESB-M3G132-APrinted copies are uncontrolled Copyright 2005, Ford G
12、lobal Technologies, LLC Page 3 of 4 3.4.2 Heat Resistance Shrinkage, max 1.0% No evidence of cracking, checking, or color change after exposure in a mechanical convection oven for 30 min at 120 C. The test shall be conducted 2 h after application of a 1 x 5 in (25 x 125 mm) strip of the film to stee
13、l and chrome plated steel test panels. This test shall be conducted in both machine and cross-machine directions. 3.4.3 Weathering Resistance No increase of brittleness or loss of adhesion is permitted and the film shall be completely free from evidence of cracking, checking, blistering, or peeling
14、when exposed as follows: Florida Exposure (Miami Area), min 12 months at 5 facing south. Accelerated Weathering, min 400 h (FLTM BO 101-01, Atlas Fadeometer) 3.4.4 Water Resistance, min 240 h (FLTM BI 104-01) No blistering, or loss of adhesion. 3.4.5 Salt Spray Resistance, min 240 h (FLTM BI 103-01)
15、 No blistering, or loss of adhesion. 3.5 FINISHED PARTS REQUIREMENTS 3.5.1 Quality That obtainable with the best commercial practice. Cleanliness All substrates to be covered by the film shall be clean in keeping with good commercial practice. Oil, grease, dust and other foreign materials which woul
16、d affect the adhesion of the film shall be removed prior to material application. Appearance The film shall be transparent, smooth (no blisters) and demonstrate firm adherence to the surface over which it is applied. ENGINEERING MATERIAL SPECIFICATIONESB-M3G132-APrinted copies are uncontrolled Copyr
17、ight 2005, Ford Global Technologies, LLC Page 4 of 4 3.5.2 Adhesion, min As Received 48 oz/in (525 N/m) width Aged 60 oz/in (657 N/m) width Test Method: Expose samples of the part to each of the following conditions: 72 h at 70 C. 96 h at 38 C and 95 - 100% relative humidity. 240 h salt spray per FL
18、TM BI 103-01. Samples shall be conditioned a minimum of 4 h at 23 +/- 2 C and 50 +/- 5% relative humidity prior to starting the tests. Test shall be completed within 1 h after removal from the conditioning environment in accordance with ASTM D 1000. 3.5.3 Heat Resistance Finished parts shall withsta
19、nd a simulated paint repair bake (30 min at 120 C) without evidence of blistering, checking, cracking, or loss of adhesion. 3.6 PRODUCTION VALIDATION TEST All material shall be tested for conformance with para 3.1, 3.2, 3.3, 3.4 and 3.5. Test results shall be approved by BEPE and AAD-SQA before mate
20、rial is shipped for production use. 3.6.1 In Process Tests Shall be conducted on every lot as follows: No. of Rolls Statistical Specification to be Sampled Test Acceptance Test Para No. Per lot (min)* Criteria Adhesion 3.2.3 1 All must pass Appearance 3.3.1 1 All must pass Thickness 3.3.2 1 All must pass * For the purpose of sampling, a lot shall consist of not more than 10 000 sq ft (930 sq m) of material manufactured in one production run. 3.6.2 Reaction Plan Any lot of material that fails to comply with the requirements of this specification shall not be shipped to Ford Motor Company.
