1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 05 14 N Status No usage or replacement N. Benipal, NA 2008 04 23 Revised Inserted 3.0; Deleted 3.1, 3.8 & 4 1975 09 02 Released AF1-6000-14 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 5
2、PRIMER SURFACER, POLYETHER POLYURETHANE- ETHYLENE ESB-M6J128-A2 PROPYLENE DIENE RUBBER (EPDM) NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a primer-surfacer for use on molded Ethylene Propylene Diene Monomer (EPDM) rubber parts. The ESB-M6J128-A2 polyether pri
3、mer is more resistant to galvanic action (primer hydrolysis is significantly retarded) and reduces paint peeling. 2. APPLICATION This material was originally released for use as a primer on molded EPDM rubber substrates such as front and rear stone deflectors, bumpers rub strips, or other exterior p
4、arts. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 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
5、TOXICITY The primer shall contain no benzene, chlorinated or other toxic compounds, or hydrolyzable chlorine derivatives, nor have an obnoxious or objectionable odor, nor cause skin rash or irritation (dermatitis) to exposed handlers in normal production operations. 3.3 PHYSICAL PROPERTIES 3.3.1 Sol
6、ids, min 36% (FLTM BI 102-01) 3.3.2 Weight Per Volume 8.0 +/- 0.2 lb/gal (ASTM D 1475) (0.96 kg/L +/- 0.02 kg/L) 3.3.3 Viscosity 20 - 25 s (FLTM BI 111-01, #4 Ford Cup) 3.3.4 Stability (FLTM BI 102-03) The material shall not jell, settle hard or increase in viscosity in excess of 10 s. ENGINEERING M
7、ATERIAL SPECIFICATION ESB-M6J128-A2 Copyright 2012, Ford Global Technologies, LLC Page 2 of 5 3.4 PREPARATION OF TEST PANELS Prepare according to the following procedure: 3.4.1 Substrate Unless otherwise specified, use 0.10 in (2.6 mm) min thick EPDM rubber panels of any convenient size, representat
8、ive of production material, with a smooth surface free of pits and blisters. Pre-treat surface per ESB-M9P6-A prior to painting. 3.4.2 Primer Reduce to spray viscosity with solvent recommended by the primer supplier. Apply 0.0008 - 0.0012 in (21 - 30 m) dry film thickness. Bake the part or panel for
9、 20 min at 121 C to obtain a surface temperature of 116 C for 10 min. 3.4.3 Color Coat Apply 0.0018 in (46 m) min ESB-M2J121-A Elastomeric Enamel and bake 40 min at 121 C, to obtain a surface temperature of 116 C for 25 min. 3.5 APPEARANCE 3.5.1 Color Gray or Black 3.5.2 Leveling The primer film sha
10、ll level with a min of orange peel. The surface of the material under test shall be equal to or better than current approved production material or smoothness when applied and baked under identical conditions. 3.5.3 Holdout There shall be no evidence of dulling or strike-in when enamel color coat is
11、 applied over unsanded primer. 3.6 FILM PROPERTIES 3.6.1 Adhesion (FLTM BI 106-01) Both primer adhesion to substrate and enamel adhesion to primer shall be satisfactory, with no chipping. 3.7 RESISTANCE PROPERTIES Test panels or parts shall be prepared per paragraph 3.4 and tested with color coat en
12、amel. Note: Aging of test panels or parts is not mandatory before testing for resistance properties. ENGINEERING MATERIAL SPECIFICATION ESB-M6J128-A2 Copyright 2012, Ford Global Technologies, LLC Page 3 of 5 3.7.1 Water Resistance, min 240 h (FLTM BI 104-01) Test Method: Immerse the part for 240 h i
13、n distilled or deionized water maintained at 32 +/- 1 C. Remove parts from the water and immediately scribe an X through the finish to the substrate. Dry the scribed area with a paper towel, cloth, or air (oil and moisture free) and immediately apply, with firm thumb pressure, a min of 2 sq in (13 c
14、m2) of ESF-M3G48 tape. Remove the tape by pulling one end at a 90 angle at moderate speed. The following conditions shall be basis for rejection: Removal of paint beyond 1/16 in (1.6 mm) from any scribe line. Any evidence of blistering or dulling of the paint at the scribe line or elsewhere on the p
15、art. 3.7.2 Weathering Resistance (FLTM BO 101-01) The finish shall show a min degree of fading, chalking, or dulling, and no cracking when the part is bent over a 2 in (51 mm) mandrel. The flex test is performed at 23 +/- 2 C. No increase of brittleness nor loss of adhesion is permitted, and the fin
16、ish shall be completely free from evidence of cracking, checking, blistering or peeling when exposed. Florida exposure (Miami area) 12 months at 5 facing south. Accelerated weathering 1000 h (FLTM BO 101-01) Atlas XW Weatherometer for initial paint qualification on typical approved production substr
17、ate. Note: Florida exposure results shall take precedence over weatherometer results. 3.7.3 Thermal Shock Resistance (FLTM BI 107-05) The finish shall exhibit no blistering or loss of adhesion when subjected to the following cycle. 4 h water immersion 4 h min exposure at -29 C Direct steam blast on
18、scribed X at 45 angle 2 - 3 in (50 - 75 mm) from panel for 15 s min. ENGINEERING MATERIAL SPECIFICATION ESB-M6J128-A2 Copyright 2012, Ford Global Technologies, LLC Page 4 of 5 3.7.4 Gasoline Resistance The finish shall exhibit no softening, dulling, color transfer, color change, blistering or show a
19、ny evidence of loss of adhesion. Test Method: Place approximately 2 - 5 ml of M14J148 Petroleum Naphtha Aliphatic type on the painted surface and cover with a watch glass or other such device to prevent evaporation. Expose for 1 h at 23 +/- 2 C. Wipe the panel with a soft cloth and examine the cloth
20、 for evidence of color transfer and the paint film for evidence of degradation. 3.7.5 Oil Resistance The finish shall exhibit no softening, dulling, color transfer, color change, blistering or show any evidence of loss of adhesion. Test Method: Place approximately 2 - 5 ml of Rotunda motor oil (SAE
21、10W30) on the painted surface for 1 h at 23 +/- 2 C. Remove the oil and wipe the painted surface with a soft cloth and examine the cloth for evidence of color transfer and the paint film for evidence of degradation. 3.7.6 Resistance to Scuffing (FLTM BN 108-04) No cracks in the finish transverse to
22、the direction of motion and no removal of the topcoat is permitted after the following exposure: 5000 cycles using scuff head “A“ under a 2 lb (0.91 kg) load. Note: Slight circular scratches in the direction of motion are not considered evidence of failure. 3.7.7 Heat Resistance There shall be no ev
23、idence of cracking, checking, color change, or loss of adhesion after exposure to a time and temperature cycle equal to that required for the original processing of the part. 3.7.8 Chip Resistance (SAE J 400) There shall be no chipping when a finish part is subjected to 10 cycles. 3.7.9 Cold Flexibi
24、lity (FLTM BN 102-01) Cracking of the paint is permitted provided no loss of adhesion of the paint develops at the cracks. Visible hairline paint cracks are acceptable when the test piece is restored to its normal plane. Cracks in the elastomeric substrate, up to 10% of the part thickness is permitt
25、ed. Test Method: Condition the sample for 4 h min at -29 C. Bend other samples over a temperature conditioned 1/2 in (13 mm) mandrel at -29 C. The operator should wear temperature conditioned gloves when performing the test. ENGINEERING MATERIAL SPECIFICATION ESB-M6J128-A2 Copyright 2012, Ford Globa
26、l Technologies, LLC Page 5 of 5 3.7.10 Flexibility No cracking when bent over a 1 in (25m) mandrel at 23 +/- 2 C. 3.7.11 Resistance to Galvanic Action (FLTM BI 004-03) The painted surface shall exhibit no blistering nor loss of adhesion after 240 h immersion in 5% salt solution. 5. GENERAL INFORMATI
27、ON The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 FLASH POINT Below 26 C (ASTM D 92) 5.2 FLAMMABILITY This material represents a potential fire hazard. The Manufacturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in the Plant to assure that proper fire precautions are provided. The location in which it is used or stored shall be included in the notifications. 5.3 APPLICABLE SPECIFICATION Substrate ESB-M2D226-A Type II
