1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 02 2016 04 13 Editorial See Summary of Revisions C. Taylor, NA 2016 02 02 Revised See Summary of Revisions for Details C. Taylor, NA / Global Team 2007 07 31 Activated J. Robincheck Controlled document at www.MATS Copyright 2016, Ford Gl
2、obal Technologies, LLC Page 1 of 12 PAINT, ONE COMPONENT ELASTOMERIC MONOCOAT WSS-M16J14-B1 OVER FLEXIBLE SUBSTRATES, EXTERIOR PAINT, TWO COMPONENT ELASTOMERIC MONOCOAT WSS-M16J14-B2 OVER FLEXIBLE SUBSTRATES, EXTERIOR 1. SCOPE The materials defined by these specifications are elastomeric, monocoat p
3、aints applied by a baked process. 2. APPLICATION These specifications were released originally for paints used as the final topcoat on exterior trim components made of flexible substrates, such as fascia, bumper covers, appliqus, cladding. It shall be satisfactory for use over specified primers or o
4、ver previously baked enamel, as in paint repair or tutone operations. 2.1 LIMITATIONS Bake temperature should not exceed softening temperature of substrate material as agreed upon by Ford Materials Engineering. 3. REQUIREMENTS Testing to be used for initial qualification of materials and shall be ma
5、de on the basis of comparison with approved production material, chosen by the approving materials engineer. 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed
6、on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2 COMPOSITION The monocoat shall contain UV absorbers. The supplier will furnish the specific composition and concentration of the absorb
7、ers upon request. 3.2.1 Resin Shall be either a polyester, acrylic, modified urethane polymer or a polyurethane. Minor amounts of modifiers and/or plasticizers are allowed. ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 2 of 12 3.2.2 Pigments P
8、igments are exterior automotive grade selected to match the Ford Motor Company master and meet the durability requirements. 3.2.3 Solvents The volatility of solvents will be such that there shall be no paint sagging, roughness or dry spray at specified film thicknesses. Solvents shall be compliant w
9、ith any regional requirements (HAPs, etc.). 3.3 PHYSICAL PROPERTIES LIQUID STATE The following evaluation must be conducted on the monocoat at application viscosity. Throughout the application viscosity range, material shall be in compliance with local emission regulations. Property variation accept
10、ability 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 plan requirements. 3.3.1 Non-Volatile Content, range Initial sample +/- 4% (ASTM D 1353) 3.3.2 Volat
11、ile Organic Compound, range Initial sample +/- 1% (ASTM D 3960) 3.3.3 Weight per Volume, range Initial sample +/- 0.03 g/ml (ASTM D 1475) 3.3.4 Volume Solids, range Initial sample +/- 2.0% (ASTM D 2697) 3.3.5 Viscosity Report (ASTM D 1200) 3.3.6 Stability No more than 30% (ASTM D 1849) viscosity inc
12、rease permitted. 3.3.6.1 Shelf Stability, 90 days 3.3.6.2 Accelerated Stability, 60 C, 16 h 3.3.7 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 wit
13、hin specified limits. ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 3 of 12 3.4 PREPARATION OF TEST PANELS 3.4.1 Substrates Flexible polymers and flexible polymer blends, PU, PP, TEO, etc. 3.4.2 Substrate Condition The surface to be coated mus
14、t be cleaned 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) enhancements (flaming, corona discharge or plasma) and/or addition of conductive materials, ne
15、cessary to meet the requirements of this specification, shall be approved by Materials Engineering and noted on the Ford Approved Source List (ASL) and/or Material Color Durability Compliance Certification (MCDCC). 3.4.3 Adhesion Promoter Apply 6-16 m DFT (Dry Film Thickness) of the primer or as oth
16、erwise recommended, as specified for the substrate. 3.4.4 Monocoat Apply monocoat to required dry film thickness by spray under conditions appropriate for monocoats, and flash as required. Bake using appropriate bake schedule. Record paint and oven type used. (As developed by para 3.5). 3.4.5 Design
17、 Verification/Initial Qualification Test Requirements as listed in Table 1 3.4.6 Aging After application of the top coat, all panels shall be aged at least 72 h at 23 +/- 2 C (preferred) or 16 hours at 45 +/- 1 C before testing. 3.5 PROCESS WINDOW DEFINITION - NEW RESIN TECHNOLOGIES ONLY The supplie
18、r shall perform a DOE utilizing response surface analysis to determine the Process Window of the system. The three variables to be included in the design are Bake Time, Bake Temperature, and Film Thickness. An initial screening experiment should be run to determine what level will generate a window
19、which includes testing to failure. This screening experiment should be reviewed with the Materials Engineer to set up the final DOE. The DOE shall include, but is not limited to, the conditions in paragraph 4.4. Response attributes to the DOE should be based on the materials tested and should includ
20、e, but not be limited to: Film Thickness (Para 3.6.3, 3.6.4) Ultraviolet Light Transmittance (Para 3.6.5) Adhesion (Para 3.7.1) Water Immersion (Para 3.7.2) Chipping (Para 3.7.8) Environmental Cycling (Para 3.7.9) High Performance Adhesion (Para 3.7.10) Adhesion after Repairs (Perform Para 3.7.1 on
21、panel coated to Para 3.6.4) Report minimum, maximum, and target values for time, temperature, and film thickness. ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 4 of 12 3.6 FILM PROPERTIES 3.6.1 Color (FLTM BI 109-01, SAE J1545 Three Angle CMC)
22、 Shall match the Master Approved Sample color panel or the initial sample as approved by Design Center. 3.6.2 Gloss (FLTM BI 110-01, ASTM D 523) Shall match the Master Approved Sample color panel or the initial sample as approved by Design Center. Gloss A: 20 Glossmeter min 92 B: 60 Glossmeter 76 -
23、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: 60 Glossmeter 1.8 - 2.4 R: 60 Glossmeter 1.2 1.6 3.6.2.1 Gloss After Reb
24、ake, max 4 unit decrease Rebake panel at target bake conditions per Para 3.5. 3.6.3 Film Thickness Report (ASTM B 487, minimum of 400x magnification) For monocoat, 38-50 m is considered to be the requirement unless otherwise supported by testing data. Target values shall be defined from process wind
25、ow (Para 3.5) and must be sufficient to meet all requirements of this Specification. If values do not meet the requirements listed here, they should be noted on the Material Color Durability Compliance Certification (MCDCC). 3.6.4 Film Thickness Report, not to exceed (ASTM B 487, minimum of 400x mag
26、nification) 230 micrometers There shall be no more than 2 in-department repairs. 2 in-department repairs = 1st run part + 1 in line repair. 3.6.5 Ultraviolet Light Transmittance For each color, report the minimum film build of monocoat required to meet a maximum light transmission of no more than 0.
27、1% at 360 nm and 0.5% at 400 nm. Achieving compliance may require the use of a primer-surfacer. The equipment used for this measurement is an integrating sphere spectrophotometer or equivalent. These values shall be used to help determine minimum film thickness for the process window in section 3.5.
28、 ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 5 of 12 3.6.6 General The paint shall bake out to a presentable serviceable film showing no craters, pinholes, seediness, abnormal roughness or excessive metallic mottling. It shall have a reasona
29、ble tolerance for ordinary cleaning, and exhibit no dulling or color change when washed with commercially available cleaners. 3.7 RESISTANCE PROPERTIES 3.7.1 Paint Adhesion Less than 5% paint (FLTM BI 106-01, Method D, knife blade) removal of any paint layer with no complete diamonds removed. Lightl
30、y hand sand paint film surface (10 double rubs, moderate pressure) with P600 paper until dull, before scribe operation and checking adhesion. 3.7.2 Water Resistance No blistering, dulling, (FLTM BI 104-01, 240 h) softening, loss of adhesion, and/or any other film failure Adhesion shall be tested acc
31、ording to Para 3.7.1 within 30 minutes after removal from water. 3.7.3 Hydrolysis Resistance (FLTM BI 106-03, 28 days Rating 4-5 min AATCC Evaluation Procedure 1/ISO 105-A02) Test samples at 14 days and 28 days exposures and must meet the Adhesion testing performance requirements per Para 3.7.1. If
32、an adhesion failure is detected, recheck sample in a different area to verify. Test within 60 minutes of removal. If failure occurs, retest in another area after 24 hours to verify. 3.7.4 Fluid Spotting Resistance Rating 4 5 min (FLTM BI 168-01, Method A and B, AATCC Evaluation Procedure 1/ISO 105-A
33、02) Test Fluids: (Body and Exterior Trim use) No color dulling, surface distortion or permanent softening permitted. After exposure, adhesion testing performance must be met per Para 3.7.1 within 60 minutes after exposure. 3.7.5 Resistance to Acid Spotting Rating 4 5 min (FLTM BI 113-02, AATCC Evalu
34、ation Procedure 1/ISO 105-A02) No color dulling, surface distortion or permanent softening permitted. After exposure, adhesion testing performance must be met per Para 3.7.1 within 60 minutes after exposure. ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies
35、, LLC Page 6 of 12 3.7.6 Mar Resistance A & B Gloss Materials 70% Gloss retention (FLTM BI 161-01) No visual mar at all angles 3.7.7 Scratch Resistance (FLTM BO 162-01, 1.0 +/- 0.1 mm steel ball at 7.0 N, 6.0 N, 4.5 N, 3.0 N and 2.0 N) Scratch at 2N load: Rating 2 max Marring at 2N load: Rating 2 ma
36、x No Whitening or color change at any angle Whitening/Color Change at 7N load: Rating 1 max 3.7.8 Chip Resistance 3.7.8.1 Grit Blast, Split Shot Rating 4 min (FLTM BI 157-06) 3.7.8.2 Stone Chip (SAE J400, 1.4 L at -20 +/- 2 C, 1.4 L at 23 +/- 2 C, and 4.7 L at 23 +/- 2 C) Topcoat systems to be teste
37、d will include: first run panel, 1.4 L Rating 5B or 97% paint retention, no chips 3 mm Dia first run panel, 4.7 L Rating 4B or 95% paint retention, no chips 3 mm Dia first run plus two in-line repairs, 1.4 L only Rating 3B or 93% paint retention, no chips 3 mm Dia Chipping is identified as intercoat
38、 adhesion loss between any adjoining layers revealing dis-similar colors, scuffing is acceptable. Chipping metrics may be obtained by image analysis software if available. For 2k monocoats, apply repairs at the maximum recommended amount of time after the original coat for good performance. Note the
39、 amount of time used on the test data. 3.7.9 Environmental Cycling, 15 cycles No evidence of cracks, (FLTM BQ 104-07, Procedure 1 or 10, no blistering, no evaluate after 20 h at 23 +/-2 C change in appearance AATCC Evaluation Procedure 1/ISO 105-A02) or other failure when compared with an original p
40、art. Rating 4-5 min ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 7 of 12 After exposure, adhesion testing performance must be met per Para 3.7.1 within 60 minutes after exposure. For procedure 1, test pieces shall be maintained at 38C +/-2 C
41、and 95-98% RH during any weekend break in cycling. 3.7.10 High Performance Adhesion Thermal Shock Rating 20 max (FLTM BI 107-05) Alternate method Resistance Against High Pressure Cleaner (FLTM BO 160-04, Method B & Method C) 2 mm2 max For Method B prior to testing the painted surface shall be X-scri
42、bed through to the substrate (30 angle). The test must be performed on the X-scribe. For Method C prior to test run Split Shot per FLTM BI 157-06 (1st shot only) then run test at 23C, no X-scribe. The test method must be noted in the initial submission package. 3.7.11 Heat Resistance Rating 4 5 min
43、(7 days at 80 +/- 2 C, AATCC Evaluation Procedure 1, A & B gloss surfaces: ISO 105-A02) 90) 57 / 44 62 / 49 50 / 37 Medium Metallic (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 /
44、59 60 / 47 4.3 TOPCOAT PROCESSING CONDITIONS REQUIRED FOR PARA 3.5. Topcoat Bake Bake Conditions Filmbuild Time Temperature 1 Low Max Max 2 High Min Min 3 Target Target Target Note 1: Control testing panel requirements to be chosen at discretion of approving materials engineer. Note 2: Testing of on
45、e specimen is required of every color per each condition listed above. ENGINEERING MATERIAL SPECIFICATION WSS-M16J14-B1/B2 Copyright 2016, Ford Global Technologies, LLC Page 10 of 12 4.4 INFORMATION REQUIRED FOR SUBMITTAL TO FORD MOTOR COMPANY (New Technologies Only) Test data per specification Cont
46、rol plans PFMEA/DFMEA Process window (cure window) Product Data Sheets (TSB) Description of manufacturing process Internal test capabilities MSDS/SDS 4.5 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Produ
47、ct Development, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material sam
48、ples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.6 SUPPLIERS ONGOING RESPONSIBILITY All mat
49、erials must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with
