1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2015 03 15 Editorial Removed reference to A suffix G. Weber, NA 2012 02 16 N Status A2-A3-A4 No replacements named N. Benipal, NA 2005 08 11 Revised Inserted 3.0; deleted 3.1, 3.6 and 4 1977 05 12 Released AG1-6000-224 Controlled docum
2、ent at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 5 TAPE, URETHANE, PRESSURE SENSITIVE, CHIP ESB-M99J291-A2 RESISTANT, EXTERIOR - 0.20 MM (8 MIL) NOMINAL THICKNESS NOT TO BE USED FOR NEW DESIGN TAPE, URETHANE, PRESSURE SENSITIVE, CHIP ESB-M99J291-A3 RESISTANT, NON-VISIBLE APPLI
3、CATIONS - 0.36 MM (14 MIL) NOMINAL THICKNESS NOT TO BE USED FOR NEW DESIGN TAPE, URETHANE, PRESSURE SENSITIVE, CHIP ESB-M99J291-A4 RESISTANT, NON-VISIBLE APPLICATIONS - 0.20 MM (8 MIL) NOMINAL THICKNESS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are clear, p
4、aper backed, urethane films with a water clear pressure sensitive adhesive. ESB-M99J291-A3 & A4 are not suitable for use on visible exterior areas. 2. APPLICATION ESB-M99J291-A & A2 were released originally for material used for application to lower body sides to provide protection from stone abrasi
5、on. ESB-M99J291-A3 & A4 were released originally for material used to provide a galvanic barrier between steel and aluminum bumper components. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements F
6、or Production Materials (WSS-M99P1111-A). 3.2 PHYSICAL PROPERTIES A2, A4 A3 3.2.1 Tensile Strength, MPa min 55 48 (ASTM D 882, Method A, 25 x 150 mm sample, 25 mm distance between bench marks, jaw spaced at start 100 mm, pulling speed 300 mm/min) 3.2.1.1 Elongation, min 400% 400% ENGINEERING MATERIA
7、L SPECIFICATION ESB-M99J291-A2/A4 Copyright 2015, Ford Global Technologies, LLC Page 2 of 5 A3, A2 A4 3.2.2 Tear Strength, kg min 1.8 0.9 1.1 (ASTM D 1938) 3.2.3 Adhesion (ASTM D 1000 Method A. Determine the adhesion to ESB-M50J quality enamel. The tape shall be 25 mm wide for this test.) 3.2.3.1 As
8、 Received, min 438 N/m 3.2.3.2 Aged, min 657 N/m 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% rel
9、ative 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 App
10、earance The film and adhesive shall be water clear and colorless. 3.3.2 Gloss (ESB-M99J291-A & A2) 75 +/- 10 (FLTM BI 110-01, using a 20 Gardner Glossmeter) A3 A2, A4 3.3.3 Thickness (ASTM D 1000) 3.3.3.1 Film, mm 0.27-0.34 0.13-0.18 3.3.3.2 Film & Adhesive, mm 0.32-0.39 0.18-0.23 ENGINEERING MATERI
11、AL SPECIFICATION ESB-M99J291-A2/A4 Copyright 2015, Ford Global Technologies, LLC Page 3 of 5 3.4 RESISTANCE PROPERTIES 3.4.1 Sample Preparation Resistance properties test shall be conducted using appropriate sized steel panels freshly painted with white (ZWFA-5418) ESB-M50J100 quality high gloss ena
12、mel per FLTM BI 103-02, Method C. 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. . Liberally apply wetting s
13、olution 5 mL of liquid dish washing detergent per 4 L of water or a 1:3 or 1:4 ratio if isopropyl alcohol/water to panel. . Apply some wetting 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
14、from the center of the panel. Carefully work out all air 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. 3.4.2 Heat Resistance Shrinkage, max 1.0% No ev
15、idence 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 25 x 125 mm strip of the material to a test panel. This test shall be conducted in both machine and cross-machine directions. 3.4.3
16、 Weathering Resistance (ESB-M99J291-A2) A minimum degree of fading, chalking, dulling, or yellowing. No increase of brittleness or loss of adhesion is permitted and the material shall be completely free from evidence of cracking, checking, blistering, or peeling when exposed as follows: 3.4.3.1 Flor
17、ida Exposure (Miami Area), min 12 months at 5 facing south. 3.4.3.2 Accelerated Weathering, min 400 h (FLTM BO 101-01, Atlas Fadeometer) 3.4.4 Resistance to Water and Soap Spotting (FLTM BI 113-01, except the use of the colorimeter is omitted) No more dulling or color change than the approved master
18、 sample on file in the Body Materials Section. ENGINEERING MATERIAL SPECIFICATION ESB-M99J291-A2/A4 Copyright 2015, Ford Global Technologies, LLC Page 4 of 5 3.4.5 Resistance to Acid Spotting (FLTM BI 113-02, except the use of the colorimeter is omitted) No more dulling or color change than the appr
19、oved master sample on file in the Body Materials Section. 3.4.6 Water Resistance, min 240 h (FLTM BI 104-01) No blistering, loss of adhesion, or permanent change in color or gloss. 3.4.7 Salt Spray Resistance, min 240 h (FLTM BI 103-01) No blistering, loss of adhesion, or permanent change in color o
20、r gloss. 3.4.8 Gasoline Resistance The tape, when applied to panels prepared as in para 3.4.1, shall resist gasoline. Test Method: Place taped panel in a 600 mL beaker, half full of ASTM reference Fuel “B“ (30% toluene, 70% isooctane) at 20 25 C for 15 min. The tape, after removal from the reference
21、 fuel shall not be blistered and only slightly softened and dulled. Furthermore, the tape shall not exhibit any significant loss in adhesion. 3.4.9 Chip Resistance Shall not rupture and shall not exceed figure OB when exposed to 2.4 L of gravel at 20 - 25 C and -30 C per SAE J400. The panels shall b
22、e prepared as in para 3.4.1, applying film both over primer and under topcoat, and over topcoat. 3.5 FINISHED PARTS REQUIREMENTS 3.5.1 Quality That obtainable with the best commercial practice. 3.5.1.1 Cleanliness All substrates to be covered by the film shall be clean in keeping with good commercia
23、l practice. Oil, grease, dust and other foreign materials which would affect the adhesion of the film shall be removed prior to material application. 3.5.1.2 Appearance Parts shall match master samples approved by Styling and initial samples approved by Quality Control for: . Color and uniformity. .
24、 Smoothness (absence of blisters). . Absence of scratches and tool marks. ENGINEERING MATERIAL SPECIFICATION ESB-M99J291-A2/A4 Copyright 2015, Ford Global Technologies, LLC Page 5 of 5 3.5.2 Adhesion, min 3.5.2.1 As Received 438 N/m 3.5.2.2 Aged 657 N/m Test Method: Expose samples of the part to eac
25、h of the following conditions: . 72 h at 70 C. . 96 h at 38 C and 95 - 100% relative humidity. . 240 h salt spray per FLTM 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 remo
26、val from the conditioning environment in accordance with ASTM D 1000. Adhesion tests are not required if the size and/or shape of the part does not permit testing in accordance with the specified method. When this condition exists, the part shall be exposed to the specified test conditions and no bl
27、istering, lifting, peeling or loss of adhesion shall be permitted. 3.5.3 Heat Resistance Finished parts shall withstand a simulated paint repair bake (30 min at 120 C) without evidence of blistering, checking, cracking, or loss of adhesion. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 MATERIAL REFERENCE FOR TEST PANELS 5.1.1 Enameled Steel ESB-M50J quality, prepared per FLTM BI 103-02, Method “C“.
