1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 00 2014 11 06 Released C. Mracna, NA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 6 ACRYLIC COATING PERFORMANCE, RIGID SUBSTRATES, EXTERIOR WSS-M98P15-A1 1. SCOPE This specification defines the
2、performance requirements of acrylic coating for all exterior rigid components where best appearance and highest durability are required. 2. APPLICATION This specification was released to define the durability performance requirements of acrylic coated wheel ornaments. 3. REQUIREMENTS All visible par
3、ts of the component, including terminating exterior edges visible after assembly shall conform to the full requirements of this specification. All areas of the component visible after assembly must be evaluated /tested. These areas include flanges, parting lines, areas subject to post-mold treatment
4、, styling lines and grooves. 3.1 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 SYSTEM COMPONENTS 3.2.1 Substrates Rigid polymers and rigid polymer blends such as A
5、BS or PC/ABS. 3.2.2 Substrate Condition The surface to be coated must be cleaned by an automated process to ensure the absence of oil or alkaline residues, fingerprints, corrosion, mold release agents, dirt, moisture, and other foreign materials. Surface energy/resistivity or chemical reaction(s) en
6、hancements (flaming, corona discharge or plasma) and/or addition of conductive materials, necessary to meet the requirements of this specification, shall be specified on the PFMEA, Engineering Drawing and Control Plan. 3.2.3 Coating System Requirements Substrate Pre-treat Topcoat* Thermoplastic Poly
7、mers ABS, PC/ABS PA,PA/PPE, etc. As applicable to meet process/performance specifications Monocoats (1-layer) ENGINEERING MATERIAL SPECIFICATION WSS-M98P15-A1 Copyright 2014, Ford Global Technologies, LLC Page 2 of 6 3.2.4 Finished Parts Testing must be conducted on actual production parts. Where pa
8、rt dimensions limit equipment access, representative panels run through the production processes may be substituted for production parts. These panels shall be processed together with parts and shall be representative of the parts with respect to substrate and processing. When panels are used as a s
9、ubstitute, this must be clearly reported on the PSW or the laboratory test report. 3.2.5 Aging Test specimens prepared for investigations according to this specification must be aged at least 72 hours at 23 +/- 2 C (preferred) or 16 hours at 45 +/- 1 C prior to testing. 3.3 FILM PROPERTIES 3.3.1 Col
10、or (FLTM BI 109-01 Visual Assessment, SAE J1545, Three-Angle CMC) Shall match the Master Approved Sample color panel or the initial sample as approved by Design Center. 3.3.2 Gloss Report (FLTM BI 110-01, ASTM D 523) Shall match the Master Approved Sample color panel or the initial sample as approve
11、d by Design Center. Gloss 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:
12、60 Glossmeter 1.8 - 2.4 R: 60 Glossmeter 1.2 1.6 3.4 RESISTANCE PROPERTIES 3.4.1 Water Resistance No blistering, dulling, (FLTM BI 104-01, 240h) softening, and/or any other film failure. 3.4.2 Condensing Humidity Resistance Rating 4-5 min (FLTM BI 104-02, Method A, 240h AATCC Evaluation Procedure 1/
13、ISO 105-A02) ENGINEERING MATERIAL SPECIFICATION WSS-M98P15-A1 Copyright 2014, Ford Global Technologies, LLC Page 3 of 6 Alternative Methods (Must be agreed upon by Materials Engineering) 3.4.2.1 Humidity Resistance 168hr at 85C & 90%R.H. Rating 4-5 min 3.4.2.2 Humidity Resistance 240hr at 85C & 90%R
14、.H. Report 3.4.3 Corrosion Resistance All other Metallic Substrates and Aluminum Badges Grade 6 max (CETP 00.00-L-467, 9 weeks except scribe as in FLTM BI 123-01, ASTM D 610) No obvious corrosion from visible cut edges. 3 mm maximum creepage from scribed lines 3.4.4 Fluid Spotting Resistance Rating
15、4-5 min (FLTM BI 168-01, Method A and B, AATCC Evaluation Procedure 1/ISO 105-A02) Test Fluids: Body and Exterior Trim. For Wheel Trim and Ornaments, include Wheel Cleaner Resistance (Motorcraft P/N ZC-37-A) and tire sealant (TMK Kit, P/N 4G7Z-19L523-AA). No color dulling, surface distortion or perm
16、anent softening permitted. 3.4.5 Mar Resistance (A& B Gloss Materials) 70% Gloss retention (FLTM BI 161-01) No visual Mar at all angles 3.4.6 Scratch Resistance 3.4.6.1 A & B Gloss Materials Fracture Load 8.0 Nm Nano Scratch Test (DVM-0058-PA) Deformation 90) 57 / 44 62 / 49 50 / 37 Medium Metallic
17、(L15 50-89) 60 / 47 65 / 52 53 / 40 Dark Metallics (L15 75) 62 / 49 67 / 54 55 / 42 Medium Solids (L15 30-75) 65 / 52 70 / 57 58 / 45 Dark Solids (L15 30) 67 / 54 72 / 59 60 / 47 ENGINEERING MATERIAL SPECIFICATION WSS-M98P15-A1 Copyright 2014, Ford Global Technologies, LLC Page 6 of 6 Table 1 - Appr
18、oval Test Requirements for Process/Product Validation Column Number 1 2 3 4 5 Sample size New Applicator Change In Approved Material New Coating Material New Part 3.3 Film Properties 3 X Contact Materials Eng X X 3.4.1 Water Resistance 3 X X 3.4.2 Humidity Resistance 3 X X 3.4.3 Corrosion 3 X X X 3.
19、4.4 Fluid Spot 1 X X 3.4.5 Mar Resistance 3 X X 3.4.6 Scratch Resistance 3 X X 3.4.7 Environmental Cycling 3 X X X 3.4.8 Heat Resistance 3 X X 3.5 Accelerated Weathering 3 X X X* * Plaques may be substituted but must be prepared in the production process * Weathering test can be waived by Materials Engineering with appropriate supporting data
