1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver. 4 2008 08 27 N-STATUS Replaced by WSS-M2P180-A or WSS-M2P180-C G. Weber, FNA 2003 07 31 Revised Para 3.0 inserted; Para 3.4 & 4 deleted 1977 10 11 Released AH1-375 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies,
2、 Inc. Page 1 of 5 PAINT PERFORMANCE, HIGH VISIBILITY PLASTIC PARTS - ESB-M2P7-B1 EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the performance requirements of a painted finish on high visibility plastic parts. Thermoset plastic parts are painted with a primer, sealer or
3、guidecoat, and topcoat. Thermoplastic parts are painted with primer and enamel. The specific paint film thickness requirements for both types of substrates are shown in para 3.2.4. This specification includes two systems of primer/sealer and enamel film thickness to provide a differential in initial
4、 appearance. System I is a durable automotive paint finish with excellent initial appearance and adequate durability for the projected life of the vehicle. This system is feasible for all assembly plants. System II defines a durable paint finish with superior visual appearance on the finished vehicl
5、es, as a result of increased film thickness to achieve greater fullness, color depth and smoothness. This system requires paint processing facilities in addition to those required in System I. ESB-M2P7-B1 specification shown without system designation shall be understood to be System I. 2. APPLICATI
6、ON This specification was released originally for a finish specified for all exterior plastic parts visible after assembly, such as front end panels, fender extensions, hood scoops, spoilers, etc. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producer
7、s must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 FINISH COMPONENTS 3.1.1 Substrate Preparation Any approved commercial method may be utilized to clean the substrate of all traces of dirt, fingerprints, mold release agents, oils, etc. 3.1.2 Primer Su
8、rfacer Baked primer-surfacer, dry film thickness as in para 3.2.4. 3.1.3 Sealer or Guidecoat Baked sealer or guidecoat for thermoset plastic parts painted in all assembly plants, dry film thickness as in para 3.2.4. ENGINEERING MATERIAL SPECIFICATION ESB-M2P7-B1 Printed copies are uncontrolled Copyr
9、ight 2008, Ford Global Technologies, Inc. Page 2 of 5 3.1.4 Repair Primer Spray 0.0008 - 0.0012 in (20 - 30 m) dry film thickness over an approved base primer in an area sanded to bare substrate. The repair area shall not exceed 1 in (25 mm) in diameter and must be scuff sanded and free of sand scra
10、tches prior to application of enamel topcoat. Minimum dry film thickness after sanding shall be as specified in para 3.2.4. All repaired areas must meet the durability properties as outlined in para 3.3. 3.1.5 Color Coat Baked acrylic enamel dry film thickness as in para 3.2.4. 3.2 FILM PROPERTIES 3
11、.2.1 Color (FLTM BI 109-01) Shall match master color panel approved by Styling. 3.2.2 Gloss (FLTM BI 110-01, using glossmeter as specified below) The gloss shall be specified by means of a letter suffix to the color number assigned by Styling as follows: A 72 minimum, 20 glossmeter 92 minimum, 60 gl
12、ossmeter B 80 +/- 4, 60 glossmeter C 70 +/- 4, 60 glossmeter D 62 +/- 4, 60 glossmeter E 50 +/- 3, 60 glossmeter F 35 +/- 3, 60 glossmeter G 20 +/- 3, 60 glossmeter H 10 +/- 3, 60 glossmeter J 6 max, 60 glossmeter The paint quality to be used at various gloss levels is specified under para 5.1 Mater
13、ial References. 3.2.3 Initial Hardness Primer and enamel shall be sufficiently cured at time of packing to withstand normal handling and shipping without damage. Any tackiness or printing resulting from hard pressure with the thumb shall be cause for rejection. ENGINEERING MATERIAL SPECIFICATION ESB
14、-M2P7-B1 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 3 of 5 3.2.4 Film Thickness, in (m), min (FLTM BI 117-01, using the Mark II Tooke Gage) System Primer Sealer or Guidecoat Color Coat I-Thermoset 0.0007 0.0005 0.0015 (18) (13) (38) I-Thermoplastic 0.0007 0.0
15、015 (18) (38) II-Thermoset 0.0007 0.0005 0.0020 (18) (13) (51) II-Thermoplastic 0.0010 0.0020 (25) (51) 3.2.5 Polishing The enamel surface shall be capable of being sanded and polished, or polished only, to minimize orange peel or to remove defects. No noticeable change in gloss or appearance, excep
16、t for a minimum of polishing lines shall result. Deep polishing lines or swirl marks are not acceptable. 3.3 DURABILITY PROPERTIES 3.3.1 Part Preparation Preparation of parts for evaluation to durability properties must include all applicable primer, sealer or guidecoat and enamel applications as de
17、fined by para 3.1. White enamel is required for adhesion and chip resistance testing and black enamel is required for all other tests. 3.3.2 Test Panels When it is not feasible to test the actual part because of its size, sections of a molded part may be substituted. These sections shall be processe
18、d concurrently with parts and shall be representative of actual part with respect to substrate, molding, cleaning, primer thickness and bake, sanding, enamel thickness and bake and all other operations. 3.3.3 All painted parts and test panels shall be aged 16 h at 43 C or 72 h above 21 C before test
19、ing for durability properties. 3.3.4 Adhesion (FLTM BI 106-01, compared to current approved production primer) Both primer adhesion to plastic and enamel adhesion to sanded or unsanded primer shall be satisfactory, with no chipping. 3.3.5 Chip Resistance (SAE J 400) Prepare substrate according to pa
20、ra 3.1. Chipping shall not exceed Fig. 4-B. ENGINEERING MATERIAL SPECIFICATION ESB-M2P7-B1 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 4 of 5 3.3.6 Water Resistance, min 240 h (FLTM BI 104-01) No blistering, dulling or loss of adhesion. 3.3.7 Resistance to Wat
21、er and Soap Spotting (FLTM BI 113-01, except use of colorimeter is omitted) No more dulling or color change than the approved master sample on file in the BEPE Materials Engineering Section. 3.3.8 Resistance to Acid Spotting (FLTM BI 113-02, except use of colorimeter is omitted) No more dulling or c
22、olor change than the approved master sample on file in the BEPE Materials Engineering Section. 3.3.9 Weathering Resistance, min 400 h (FLTM BO 101-01) The finished test specimen shall show a minimum degree of fading, chalking, dulling or color change. No greater loss of gloss is permitted than equiv
23、alent approved production colors. This specimen may be a current production part, a similar or previous production part, or a test panel. In all cases, the specimen under test shall be equivalent to current production materials and processing. No increase of brittleness or loss of adhesion is permit
24、ted and specimens shall be completely free from evidence of cracking, checking, blistering, peeling or rusting. 5. GENERAL INFORMATION The information given below is for clarification and assistance in meeting the requirements of this specification. 5.1 MATERIAL REFERENCES . Primers ESB-M6J106 ESB-M
25、6J127 . Guidecoat ESB-M6J119 ESB-M6J120 . Sealer ESB-M99J222 . Enamels Gloss Suffix A ESB-M32J100 ESB-M50J103 ESB-M32J102 ESB-M50J105 ESB-M32J105 ESB-M50J106 ESB-M50J100 Gloss Suffix B-J ESB-M32J101 ESB-M2J110 ENGINEERING MATERIAL SPECIFICATION ESB-M2P7-B1 Printed copies are uncontrolled Copyright 2
26、008, Ford Global Technologies, Inc. Page 5 of 5 5.2 SUBSTRATES ESB-M3D20 Polyester Resin - Fiberglass Mat Reinforced ESB-M3D59 Polyester Resin - Fiberglass Reinforced Impregnated Finish ESB-M3D101 Polyester Resin - Glass Fiber Reinforced - Bulk Molding Compound ESB-M3D105 Polyester Resin - Fiberglass Reinforced - Matched Metal Die Molding Compound ESB-M4D353 Nylon - Mineral Filled - Injection Molding Compound ESB-M4D354 Polybutylene Terephthalate - 30% Glass Filled
