1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2013 09 12 Released M. Corley, EU Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 5 PAINT, ONE COMPONENT COLOR BASECOAT/ WSS-M15J17-A2 TWO COMPONENT CLEARCOAT FOR PLASTIC, INTERIOR, LOW GLOSS (C-L) 1. S
2、COPE The material defined by these specifications is a pigmented one-component basecoat/two component clearcoat system suitable for first surface application to interior plastic parts. 2. APPLICATION This specification was released originally as a decorative finish for interior parts. These paint sy
3、stems are typical used to decorate interior visible surfaces (i.e. steering wheel bezels, switches, buttons, console, etc.). 3. REQUIREMENTS All painted parts must meet WSS-M2P188-A1. All paint applicators must meet the Painted Part Approval Process (AVP-T113-0116). 3.1 STANDARD REQUIREMENTS FOR PRO
4、DUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 PHYSICAL PROPERTIES LIQUID STATE The following evaluation must be conducted on both the basecoat and clearcoat. Throughout the application viscosi
5、ty range, material shall be in compliance with local emission regulations. Property variation acceptability as identified below, shall be based on the recorded values of the originally approved production sample as approved by Ford Materials Engineering. This data will be used in developing control
6、plan requirements. 3.2.1 Non-Volatile Content, range Initial sample +/- 4% (ASTM D 1353) 3.2.2 Volatile Organic Compound, range Initial sample +/- 1% (ASTM D 3960) 3.2.3 Weight per Volume, range Initial sample +/- 0.03 g/ml (ASTM D 1475) 3.2.4 Volume Solids, range Initial sample +/- 2.0% (ASTM D 269
7、7) ENGINEERING MATERIAL SPECIFICATION WSS-M15J17-A2 Copyright 2013, Ford Global Technologies, LLC Page 2 of 5 3.2.5 Viscosity Report (ASTM D 1200) 3.2.6 Stability No more than 30% (ASTM D 1849) viscosity increase permitted. 3.2.6.1 Shelf Stability, 90 days 3.2.6.2 Accelerated Stability, 60 C, 16 h 3
8、.2.7 Resistivity 0.005 to 2.00 megohms (ASTM D 5682) Volatile solvents and other components affecting electrical conductivity shall be adjusted such that the resistivity at application viscosity shall be within specified limits. 3.3 PREPARATION OF TEST PANELS 3.3.1 Testing Requirement/ Specimen Prep
9、aration Tests shall be performed on plaques of appropriate substrate. See Table 1 for testing requirements & sample size. Design Verification Testing (DV) is done on plaques by the paint supplier as defined in Table 1. Product/Process Validation Testing (PV) is done on production painted parts as ou
10、tlined in the painted part Performance Specification WSS-M2P188-A1. 3.3.2 Substrate Polymers and polymer blends (i.e ABS, PC, PC/ABS). All test specimens shall be injection molded plaques or parts having a nominal thickness of 2.5 +/- 0.2 mm or as specified on the engineering document. 3.3.3 Plastic
11、 Preparation The surface to be painted shall be cleaned by an acceptable process, e.g. power wash, to remove mold releasing agents, fingerprints, oils, dirt and moisture. 3.3.4 Primer When necessary in order to meet the requirements of this specification, an adhesion primer, primer surfacer or seale
12、r may be needed. Surface enhancements, such as flaming or plasma treatment that modify surface tension, surface resistivity may also be required in order to meet the requirements. This must be noted in the initial submission package and recorded on the Ford Approved Source List (ASL). 3.3.5 Cure Sup
13、plier shall define Cure Window as described in Paragraph 3.6. This should be included in the submission package and DFMEA. ENGINEERING MATERIAL SPECIFICATION WSS-M15J17-A2 Copyright 2013, Ford Global Technologies, LLC Page 3 of 5 3.3.6 Aging Test panels or test specimens prepared for investigations
14、according to this specification must be aged for at least 72 hours at 23 +/- 2 C or 16 hours at 45 +/- 1 C prior to testing. 3.4 APPEARANCE 3.4.1 General Color, gloss, grain, tactile effect and surface finish shall match master Trim Sample and/or Master Appearance Sample as approved by Corporate Des
15、ign The coating shall exhibit no craters, pinholes, solvent popping, seediness, abnormal roughness, or excessive flow. 3.4.2 Color (FLTM BI 109-01, Visual Assessment) (SAE J1545, MA58 Three-Angle CMC) Shall match the Master Approved Sample. 3.4.3 Gloss (FLTM BI 110-01, ASTM D 523) As released by Eng
16、ineering: A: 20 Glossmeter, min 92 B: 60 Glossmeter 76 - 84 C: 60 Glossmeter 66 - 74 D: 60 Glossmeter 58 - 66 E: 60 Glossmeter 47 - 53 F: 60 Glossmeter 33 - 38 G: 60 Glossmeter 17 - 23 H: 60 Glossmeter 7 - 13 J: 60 Glossmeter 4 - 6 K: 60 Glossmeter 2 - 4 L: 60 Glossmeter 0.5 - 2.0 N: 60o Glossmeter
17、1.8 - 2.4 The color, pattern and finish shall match the approved Design Center master sample, or shall be as specified on the Engineering Document. Gloss can be affected by grain so the end gloss for the part will be determined & approved by visual evaluation by Design Quality. An accurate gloss rea
18、ding needs to be performed on a flat smooth surface otherwise an accurate gloss reading cant be obtained. 3.5 FILM PROPERTIES All film properties are based on the proper preparation per para 3.3 with acceptable appearance, gloss reading, film thickness and after post cure per paragraph 3.3.6. ENGINE
19、ERING MATERIAL SPECIFICATION WSS-M15J17-A2 Copyright 2013, Ford Global Technologies, LLC Page 4 of 5 3.5.1 Film Thickness (ASTM B 487 or other mutually agreed upon method) Base: 15 30 micrometers Clear: 25 40 micrometers Note : These ranges are considered to be requirements unless otherwise supporte
20、d by testing data agreed to by Materials Engineering . 3.5.2 Florida Weathering Under Glass, 12 months (FLTM BI 160-01) 3.5.2.1 Visual Requirements Rating 4, min (ISO 105 A-02/AATCC, Evaluation Procedure 1) Gloss change 30% L.a.b. delta E 1.9 Test parts shall be exposed under glass in the Miami, Flo
21、rida area, black box, under glass at a 5 angle facing South. 3.5.2.2 Adhesion After Weathering Grade 0 max (FLTM BI 106-01, 24hr, Method B) 3.5.3 Performance Specification Testing per WSS-M2P188-A1 3.5.3.1 Paint Technology Approval The testing required for a Paint Technology approval is called out i
22、n Column 1 of WSS-M2P188-A1. 3.5.3.2 Color Change Approval (MCDCC) The testing required for a Color change approval is called out in Column 4 of WSS-M2P188-A1. 3.5.3.3 Substrate/Primer Change Approval The testing required for a Substrate/Primer change is called out in Column 2 of WSS-M2P188-A1. 3.6
23、PROCESS WINDOW DEFINITION The supplier shall perform a Design of Experiments (Response Surface Analysis is recommended) to determine the process window of the material. The three variables/parameters to be included in the design are bake temperature, bake time, and film thickness. An initial screeni
24、ng experiment should be run to determine what levels should be tested for the variables/parameters. This screening experiment should be reviewed with the materials engineer to set up the final DOE. Responses for the DOE shall include, but are not limited to, the following: ENGINEERING MATERIAL SPECI
25、FICATION WSS-M15J17-A2 Copyright 2013, Ford Global Technologies, LLC Page 5 of 5 Film Thickness, para 3.5.1 Gloss, para 3.4.3 Initial Adhesion, per WSS-M2P188-A1 para 3.4.1 Water Resistance, WSS-M2P188-A1 para. 3.4.2 Naptha or Xylene Crocking (2K only), FLTM BN 107-01, 10 cycles Odor, WSS-M2P188-A1 para. 3.7 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS
