1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 04 30 Activated K. D. Bruley Printed copies are uncontrolled Page 1 of 8 Copyright 2003, Ford Global Technologies, Inc. PAINT, MONOCOAT, LOW-GLOSS URETHANE, WSS-M16J19-A HIGH PERFORMANCE, FIRST SURFACE
2、EXTERIOR 1. SCOPE The material defined by this specification is a pigmented, low-gloss, two component urethane suitable for first surface application to various rigid substrates. 2. APPLICATION This specification was released originally for highly durable exterior accent coating on exterior trim com
3、ponents. It is a monocoat application that does not employ a clearcoat topcoat. 3. REQUIREMENTS 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 COMPOSITION 3.2.1
4、 Resin Coating shall be thermosetting synthetic resin fortified to meet the durability requirements. 3.2.2 Pigments Pigments are exterior quality automotive grade selected to meet durability requirements. 3.2.3 Solvents The volatility of the solvent will be such that there shall be no paint sagging,
5、 roughness or dry spray at the specified film thickness. ENGINEERING MATERIAL SPECIFICATION WSS-M16J19-A Page 2 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.3 PHYSICAL PROPERTIES LIQUID STATE The following evaluations must be conducted at application viscosity. Over the application viscosit
6、y range, material shall be in compliance with local emission regulations 3.3.1 Non-Volatile Content, range See initial sample +/- 4% (ASTM D 1353) 3.3.2 Volatile Organic Content, range See initial sample +/- 1% (ASTM D 3960) 3.3.3 Weight per Volume, range See initial sample +/- 0.1 lbs/gal (ASTM D 1
7、475) 3.3.4 Volume Solids, range See initial sample +/- 2% (ASTM D 2697) 3.3.5 Viscosity, min (ASTM D 1200) Supplier shall report value at application reduction. 3.3.6 Stability (FLTM BI 102-03) The uncatalyzed material shall not liver or jell upon standing and must be free from settling which is not
8、 dispersed by normal agitation. The viscosity of the material shall not increase more that 10 seconds. Uncatalyzed material shall be stable for at least one year. 3.4 SYSTEM COMPONENTS 3.4.1 Substrate Rigid polymers and rigid polymer blends, SMC, ABS, etc. with a flex modulus typically greater that
9、1250 MPa, as required on Engineering Drawing. 3.4.2 Surface Condition The surface to be coated must be cleaned by an automated process to ensure absence of oil or alkaline residue, fingerprints, mold release agents, dirt, moisture and other foreign materials. ENGINEERING MATERIAL SPECIFICATION WSS-M
10、16J19-A Page 3 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.4.3 Topcoat Apply topcoat to the required dry film thickness by spray under conditions appropriate for topcoats and flash as required. 3.4.4 Drying Material must be dried at 82 +/- 2 C oven temperature for 30 minutes. 3.4.5 Aging A
11、ll panels shall be aged 2 weeks minimum at 23 +/- 2 C before testing. 3.5 APPEARANCE 3.5.1 Color (FLTM BI 109-01 Visual Assessment) (SAE J 1545, Three-Angle CMC) Shall match the Master Approve Sample color panel. 3.5.2 Gloss (FLTM BI 110-01) As released by Engineering: E: 60 Glossmeter 50 +/- 3 F: 6
12、0 Glossmeter 35 +/- 3 G: 60 Glossmeter 20 +/- 3 H: 60 Glossmeter 10 +/- 3 3.5.3 General The material, when properly applied, shall dry to a smooth homogeneous film, free from mottling, pitting or excessive orange peel. 3.6 FILM PROPERTIES 3.6.1 Film Thickness, min 30.5 m (ASTM B 487) Coating film th
13、ickness must be sufficient to meet all requirements of this specification. ENGINEERING MATERIAL SPECIFICATION WSS-M16J19-A Page 4 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.6.2 Hardness (ASTM D 1474) Shall be sufficiently cured after baking to withstand normal handling and shipping withou
14、t damage. Properly cured finish shall be hard enough to dry sand easily with 360 grit paper without gumminess or severe scratching. 3.6.3 Dry Hiding Paint shall provide complete opacity at 25.4 m maximum. 3.6.4 Ultraviolet Light Transmittance The maximum light transmission through the monocoat appli
15、ed at 80% of dry hiding shall be no more than 0.1% at 360 nm and 5% at 400 nm. The equipment used for this measurement is a Lambda 6 Intergrate Sphere spectrophotometer or equivalent. 3.6.5 Adhesion 3.6.5.1 Paint Adhesion No chipping, or loss (FLTM BI 106-01, Method C) of adhesion permitted 3.6.5.2
16、Paint Adhesion Grade 1 or better (FLTM BI 106-01, Method D) 3.7 RESISTANCE PROPERTIES 3.7.1 Water Resistance 240 h (FLTM BI 104-01) No blistering, dulling, wrinkling, softening, loss of adhesion and/or any other film failure. Adhesion shall be tested according to para. 3.8.5 within 15 20 minutes aft
17、er removal from water. ENGINEERING MATERIAL SPECIFICATION WSS-M16J19-A Page 5 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.7.2 Humidity Resistance 240 h (FLTM BI 104-02, Method A) No blistering, dulling, wrinkling, softening, loss of adhesion and/or any other film failure. Adhesion shall be
18、 tested according to para. 3.8.5 within 15 20 minutes after removal from water. 3.7.3 Fluid Spotting Resistance None (FLTM BI 113-01) Test Fluids: (Current production factory fill materials, Motorcraft products or equivalent) Deionized Water Liquid Soap Windshield Solution Neat and 30% concentration
19、 in deionized water Coolant Solution Neat and 30% concentration in deionized water Motor Oil Bug and Tar Remover No color change in excess of Gray Scale rating of 4-5 (AATCC Evaluation Procedure 1/ISO 105-A02), dulling, surface distortion or permanent softening permitted. 3.7.4 Resistance to Acid Sp
20、otting None (FLTM BI 113-02) No color change in excess of Gray Scale rating of 4-5 (AATCC Evaluation Procedure 1/ISO 105-A02), dulling, surface distortion or permanent softening permitted. 3.7.5 Xylene Resistance No softening or dulling permitted Using a circular motion, rub surface of coating 10 ti
21、mes with wetted cheesecloth. ENGINEERING MATERIAL SPECIFICATION WSS-M16J19-A Page 6 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.7.6 Fuel Resistance (FLTM BO 101-05) Fuel Composition (FLTM AZ 105-01) By Volume: 1) CM15 2) CM15(ME15) After 5 minutes recovery time, no color change in excess o
22、f Gray Scale rating 4-5 (AATCC Evaluation Procedure 1/ISO 105-A02), dulling, surface distortion or permanent softening permitted. Adhesion shall meet the requirement of para. 3.6.5.2. 3.7.7 Abrasion Resistance No Wear Through (FLTM BN 108-02, Procedure A) 3000 cycles minimum per 25 micrometre film t
23、hickness using CS-10 wheels and 500 g load. 3.7.8 Stone Chip Resistance Rating 7A (SAE J400, 3 Pints Gravel) 3.7.9 Resistance to High Pressure Cleaner No blistering or (FLTM BO 160-04, Method B) loss of adhesion Prior to testing the painted surface shall be X-scribed through to the substrate (30 ang
24、le). The test must be performed on the X-scribe. 3.7.10 Cold Checking Resistance 15 Cycles (FLTM BI 107-02) Evaluation after 2 hours conditioning at 23 +/- 2 C No evidence of cracks, blistering, change in appearance or other failures when compared with unaged panel. Adhesion shall meet the requireme
25、nt of para. 3.6.5.2. 3.7.11 Intercoat Adhesion No chipping or flaking (FLTM BI 106-01, Method A) ENGINEERING MATERIAL SPECIFICATION WSS-M16J19-A Page 7 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.8 WEATHERING RESISTANCE Accelerated weathering is only to be considered if, for Engineering co
26、ncurred special reasons, no Florida results are available. Under such circumstances, comparative testing only is allowed against materials of known Florida stability with identical chemical type of resin. In case of differences in the test results of Florida exposure and accelerated weathering, the
27、results of the Florida exposure shall prevail. The panels shall be completely free from evidence of cracking, checking, rusting, blistering, d peeling or micro-checking. Only the slightest visual color change and minimal gloss loss is permitted. The film shall be free from mildew and show a minimum
28、of dirt retention. Wash panels from exposure per FLTM BI 160-01, B, 1. Clean exposure panels will be placed in a deionized water bath for 16 h per FLTM BI 104-01. After panels are removed from the water bath and thoroughly blown dry, an “X“, to be located at the center of the panel and 50 mm from th
29、e bottom, is scribed. The “X“ shall be 30 mm in height and 20 mm wide. Tape the “X“ with 3M 898-2 tape and check for peeling and delamination between any layers. There shall be no blistering or delamination of any of the coating layers. 3.8.1 Natural Weathering Florida Exposure (SAE J1976, Procedure
30、 A) Initial Product Approval 3 years required, 2.0 E, max 10 years submission (1 panel for every year of testing) New Color 1 year required, (Known pigments and resins) 1.0 E, max 2, 5 and 10 year submissions 3.8.1.1 Gloss Retention, min 90% (ASTM D 523, 60glossmeter) ENGINEERING MATERIAL SPECIFICAT
31、ION WSS-M16J19-A Page 8 of 8 Copyright 2003, Ford Global Technologies, Inc. 3.8.2 Accelerated Weathering (SAE J1960, 0.55 W/m2Irradiance, Borosilicate inner and outer filters) Initial Product Approval 3,600 required, 2.0 E, max New Color 3,000 h required (Known pigments and resins) 1.0 E, max 3.8.2.
32、1 Gloss Retention, min 90% (ASTM D 523, 60glossmeter) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 UVA RETENTION New technology only (FLTM AI 103-02) Report values as function of exposure time Equal to or better than currently approved product 4.2 PHOTO-OXIDATION AND FILM LOSS IN COATINGS New technology only (FLTM AI 103-03, Method B) Report values as function of exposure time Equal to or better than currently approved product
