1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Rev 03 2012 06 25 N Status No usage or replacement N. Benipal, NA 2007 11 30 Revised Format updated, no technical change 1993 01 23 Released NB00E10091725003 P.A. Krusac Controlled document at www.MATS Copyright 2012, Ford Global Technologies,
2、 LLC Page 1 of 5 ENAMEL, AIR DRY REPAIR, POLYURETHANE, NON-SKIN WSB-M1J62-C PANEL SURFACES, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a monocoat air drying, one or two component non-isocyanate containing enamel suitable for in-plant repair of exter
3、ior, non-skin panel surfaces. 2. APPLICATION This specification was released originally for material used for repairing small scratches, chips, etc. on exterior, non-skin panel surfaces. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must con
4、form to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 COMPOSITION 3.4.1 Resin The vehicle shall be based on a suitable synthetic resin system to obtain the desired application and resistance properties. 3.4.2 Pigment The pigment shall be balanced and blended so th
5、at the finished enamel meets the requirements of this specification. 3.4.3 Solvents Aliphatic hydrocarbons, aromatics, esters, ketone, and alcohols as required to provide performance. 3.4.4 Specific Composition When it is necessary to obtain specific data regarding material formulation, it is unders
6、tood that the supplier will furnish such data on request. ENGINEERING MATERIAL SPECIFICATIONWSB-M1J62-C Copyright 2012, Ford Global Technologies, LLC Page 2 of 5 3.5 PHYSICAL PROPERTIES 3.5.1 Non-Volatile Initial sample +/- 1.0% (FLTM BI 102-01) 3.5.2 Density Initial sample +/- 0.02 g/mL (ASTM D 147
7、5) 3.5.3 Viscosity (FLTM BI 111-01, #4 Ford, 27 C) 3.5.3.1 Package Viscosity 55 - 65 s Production may require higher viscosities in order that required performance levels are maintained. Batch variations shall not exceed +/- 2 s #4 Ford cup of the viscosity authorized by the affected manufacturing a
8、reas. 3.5.3.2 Test Viscosity Initial samples and samples taken from production shipments must be tested at 55 - 65 s #4 Ford cup and if in excess of this, must be reduced to this viscosity. The supplier shall state and supply suitable solvent for this purpose when required. 3.5.4 Shelf Stability Dur
9、ing a storage of three months at room temperature, the material as received shall not gel or liver upon standing and must be free from settling which cannot be dispersed by normal agitation. The viscosity of the material shall not increase in excess of 55 - 65 s #4 Ford when tested according to FLTM
10、 BI 102-03. 3.5.5 Solvent Emissions, max 0.67 kg/L (ASTM D 3960) 3.6 PREPARATION OF TEST PANELS (FLTM BI 103-02) 3.6.1 Substrate Ford Engineering Approved Standard Steel Test Panels, zinc phosphated, primed and topcoated with current production monocoat materials. 3.6.2 Application Apply the materia
11、l under evaluation using the appropriate assembly plant procedures, solvents, viscosities, etc. Dry Film Thickness 50 63 micrometres ENGINEERING MATERIAL SPECIFICATIONWSB-M1J62-C Copyright 2012, Ford Global Technologies, LLC Page 3 of 5 3.6.3 Drying The material shall be tack free within 3 hours of
12、application at 21 C, 50% relative humidity. Sprayed panels shall be air dried and fully cured under the same conditions. Refer to para 3.3 in WSS-M99P1111-A. The cure of these materials shall be capable of being accelerated by the use of infrared lamps, convection ovens, etc. 3.6.4 Test Panels For a
13、ll tests, panels shall be prepared per para 3.6.1. 3.7 APPEARANCE The enamel shall dry to a presentable, serviceable film showing no craters, pinholes, mottling, etc. and shall be representative of the exterior surface finish in all respects. 3.7.1 Color (FLTM BI 109-01) Shall match the Master Appea
14、rance sample color panel. 3.7.2 Gloss (FLTM BI 110-01, 60 glossmeter) Shall match the Master Appearance sample color panel. Shall be specified by means of a letter suffix to the color codes assigned by the appropriate Ford activities. 3.7.3 Leveling The surface of the material under test shall be eq
15、ual to or better than current approved production material for smoothness when applied and cured under identical conditions. 3.8 FILM PROPERTIES 3.8.1 Film Thickness 50 - 63 micrometres (FLTM BI 117-01) Coating must be sufficient to meet all performance requirements of this specification. 3.8.2 Dry
16、Hiding Power, max 76 micrometres (FLTM BI 158-01) ENGINEERING MATERIAL SPECIFICATIONWSB-M1J62-C Copyright 2012, Ford Global Technologies, LLC Page 4 of 5 3.9 RESISTANCE PROPERTIES 3.9.1 Paint Adhesion Grade 0 (FLTM BI 106-01, Method B) No chipping 3.9.2 Humidity Test Following 96 hours humidity test
17、ing (100% relative humidity at 38 C) and a 10 minute recovery period, the paint must: . Pass the tape adhesion test as described in 3.9.1. . Be free of blistering or other appearance changes. 3.9.3 Salt Spray Resistance 120 h (FLTM BI 103-01) No rust spots, blistering, chipping, peeling and gloss lo
18、ss. Do not scribe test specimens. 3.9.4 Water and Soap Spot Resistance 4 - 5 AATCC (FLTM BI 113-01) 3.9.5 Weathering Resistance 3.9.5.1 Florida Exposure 18 mos std rack (Miami area, facing south at 5 deg from horizontal) In order to monitor interim durability, a panel shall be exposed for 12 months
19、in Florida concurrently with the 18 month panel. Final approval shall be based on performance of the 18 month Florida exposure panel. Returned, completed Florida exposure panels shall be washed in their entirety with a soft foam pad using a 25% Ford M-1034 soap solution. Next, the panels are rinsed
20、with tap water, blown dry with clean compressed air, and then placed in a deionized water bath (temperature maintained at 32 +/- 1 C) for 16 h per FLTM BI 104-01. After panels are removed from water bath and thoroughly blown dry, an “X“, to be located at the center of panel and 50 mm from the bottom
21、, is scribed. This “X“ shall be 30 mm in height and 20 mm wide. The scribed “X“ is then tape-pulled with 3M brand 898-2 tape. There shall be no evidence of peeling or blistering. Note: If the completed Florida exposure panels require more thorough cleaning to facilitate proper evaluation, the lower
22、1/3 of the panels may be polished with Ford Custom Silicone Gloss cleaner, part number B7AZ-19530-AA, using a soft cloth. This procedure is performed only after the panels have been previously washed and subjected to water immersion and the “X“ scribe tape pull. ENGINEERING MATERIAL SPECIFICATIONWSB
23、-M1J62-C Copyright 2012, Ford Global Technologies, LLC Page 5 of 5 The panels shall show no more evidence of chalking, dulling, fading or other color change than the standard master sample on file in the Body Exterior Materials Engineering Section. Also, the panels shall be free from cracking and mi
24、crochecking when examined with the aid of a light source such as a Berkey Colortran Multi-10Z Lamp, Model 100-301 using a Sylvania 120V FBY bulb. Any evidence of such cracking or microchecking is considered to be a failure. Note: The performance rating assigned to a completed 18 months Florida expos
25、ure panel takes precedence over a panel of the same material exposed for 750 h per para 3.9.5.2. 3.9.5.2 Accelerated Exposure 750 h (SAE J2020, Fluorescent UV and condensation apparatus cycle is 4 h condensing humidity at 50 C followed by 8 h fluorescent UV at 70 C) After panels are removed from app
26、aratus and allowed to dry, an “X“, located at the center of panel and 50 mm from the bottom, is scribed. The “X“ shall be 30 mm in height and 20 mm wide. The scribe is then tape-pulled with 3M 898-2 tape. There shall be no evidence of loss of adhesion, blistering or cracking. Dulling, chalking, or fading shall not exceed established limits. 3.9.6 Electrical Resistance The electrical resistivity of the paint must be such that it satisfied the requirements of the equipment in the plant using it.
