1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 04 2015 04 28 N Status A1 replaced with WSS-M2P177-C2, A2/3/4 replaced with WSS-M2P177-C1 G. Weber, NA 2015 03 17 Editorial Removed reference to A5/6/7/8 G. Weber, NA 2010 12 14 N-STATUS A5, A6, A7, A8 TO BE N-STATUS. No replacement named
2、 G. Weber, NA 1997 10 13 Activated G. Weber, K. Wolters Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 5 PAINT PERFORMANCE, ENGINES, METALLIC SUBSTRATES, WSS-M2P185-A1 ALSO FOR ENGINE INTERIOR, MAX PERFORMANCE PAINT PERFORMANCE, ENGINES, METALLIC SUBSTRATES,
3、WSS-M2P185-A2 HIGH PERFORMANCE PAINT PERFORMANCE, METALLIC SUBSTRATES ENGINES, WSS-M2P185-A3 STANDARD PERFORMANCE PAINT PERFORMANCE, ENGINES, METALLIC SUBSTRATES, WSS-M2P185-A4 MIN PERFORMANCE NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define the performance requirements of various
4、types of engine paint systems, when applied over both Rigid (Metallic) and Non-Rigid (Plastic) Substrates. 2. APPLICATION These specifications were released originally to define paint performance for engine blocks, oil pans, engine accessories, brackets, etc. as well as sheet metal and plastic parts
5、 within the engine compartment. WSS-M2P185-A1: Paint systems per this specification provide excellent adhesion, chemical and heat resistance as well as superior corrosion protection for and stone chip resistance. They are designed for highly visible applications and can also be used in engine interi
6、ors, e.g. the oil pan. Appropriate paint systems are cathodic electrocoat primers with added application of powder coat where increased stone chip resistance properties are required. WSS-M2P185-A2: Paint systems according to this specification provide good adhesion; chemical and heat resistance as w
7、ell as good corrosion protection and stone chip resistance. They are designed for highly visible applications, e.g. engine blocks. Appropriate paint systems are electrocoat primer or high film build powdercoat. WSS-M2P185-A3: Paint systems according to this specification provide moderate chemical an
8、d heat resistance and moderate corrosion protection. Appropriate paint systems are low/medium film build powdercoat or engine enamel. ENGINEERING MATERIAL SPECIFICATION WSS-M2P185-A1/A4 Copyright 2015, Ford Global Technologies, LLC Page 2 of 5 WSS-M2P185-A4: Paint systems according to this specifica
9、tion provide limited corrosion resistance. They are for minor applications or invisible parts only. Any applicable paint system may be used. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For
10、 Production Materials (WSS-M99P1111-A). 3.3 PRETREATMENT 3.3.1 Cleaning Sheet metal parts, castings and plastic components as specified on the Engineering Drawing must be cleaned to be free from oil, rust, dirt, fingerprints, moisture and other foreign materials. 3.3.2 Phosphating Steel parts accord
11、ing to WSS-M2P185-A1/A2 shall be zinc phosphated and conform to the requirements of WSS-M3P1-D. For steel parts according to WSS-M2P185-A3 any applicable pretreatment may be used while parts according to WSS-M2P185-A4 do not require specific pre-treatment. 3.4 TOPCOAT The paint materials shall be ap
12、plied as required in the appropriate material specifications and/or as recommended by the supplier. 3.4.1 Color and Gloss Black or gray and semi gloss or as specified on Engineering Drawing 3.4.2 Initial Hardness The finish shall be sufficiently hard after curing to with stand normal handling withou
13、t damage. ENGINEERING MATERIAL SPECIFICATION WSS-M2P185-A1/A4 Copyright 2015, Ford Global Technologies, LLC Page 3 of 5 3.5 ADHESION (FLTM BI 106-01, Method B) A1 A2 A3 A4 Rating 0 Rating 1 Rating 1 Rating 1 3.6 SALT SPRAY RESISTANCE (ASTM B 117, scribed panels metallic substrates) A1 A2 A3 A4 960 h
14、 480 h 168 h 96 h No surface corrosion and max 3 mm creep. 3.7 WATER IMMERSION (FLTM BI 104-01) A1 A2 A3 A4 480 h 240 h 120 h 48 h 1 h after test end no loss of adhesion per para 3.4, and no blistering. 3.8 SCAB CORROSION (FLTM BI 123-01, scribed panels metallic substrates) A1 A2 A3 A4 30 cycles 20
15、cycles 10 cycles N/A No surface corrosion and max 3 mm creep. 3.9 HEAT RESISTANCE (Convection oven) A1 A2 A3 A4 24 h 12 h 5 h 1 h 200 C 200 C 180 C 150 C No loss of adhesion per para 3.5, and no cracking. 3.10 THERMAL SHOCK (FLTM BQ 104-07, Method 1, Procedure 5) A1 A2 A3 A4 20 cycles 10 cycles 5 cy
16、cles 1 cycle No loss of adhesion per para 3.4, and no cracking. ENGINEERING MATERIAL SPECIFICATION WSS-M2P185-A1/A4 Copyright 2015, Ford Global Technologies, LLC Page 4 of 5 3.11 CHIP RESISTANCE, max (FLTM BI 157-06) A1 A2 A3 A4 Rating 7 Rating 6 Rating 4 N/A 3.12 RESISTANCE TO AUTOMOTIVE LIQUIDS (s
17、ee also para 5.2) Test panels or parts under test shall be immersed into the appropriate test liquid(s). After the specified time, the samples must be removed, cleaned and dried. Evaluation 1 h after end of test. No loss of adhesion per para 3.4, no softening and no blistering. A1 A2 A3 A4 3.12.1 En
18、gine Oil 500 h 24 h 8 h 1 h 150 C 150 C 90 C 90 C 3.12.2 Manual 24 h 8 h 4 h 1 h Transmission 90 C 90 C 90 C 90 C Oil 3.12.3 Power Steering 24 h 8 h 4 h 1 h Oil 70 C 70 C 70 C 70 C 3.12.4 Engine Coolant 24 h 8 h 4 h N/A 50% * 70 C 70 C 70 C 3.12.5 Brake Fluid 8 h 4 h N/A N/A 23 C 23 C 3.12.6 Windshi
19、eld Washer 8 h 4 h N/A N/A 50%* Additive 23 C 23 C 3.12.7 Gasoline - 8 h 4 h 1 h N/A Super 23 C 23 C 23 C (with MTBE) 3.12.8 Gasoline - 8 h 4 h 1 h N/A Super 23 C 23 C 23 C (with Ethanol) 3.12.9 Alternative 8 h 4 h 1 h N/A Fuel E85 23 C 23 C 23 C (with Ethanol) 3.12.10 Alternative 8 h 4 h 1 h N/A Fu
20、el M85 23 C 23 C 23 C (with Methanol) 3.12.11 Diesel 24 h 8 h 4 h 1 h 23C 23C 23C 23C ENGINEERING MATERIAL SPECIFICATION WSS-M2P185-A1/A4 Copyright 2015, Ford Global Technologies, LLC Page 5 of 5 A1 A2 A3 A4 3.12.12 Biodiesel 24 h 8 h 4 h N/A 23 C 23 C 23 C 3.12.13 Automatic 24 h 8 h 4 h 1 h Transmi
21、ssion 70 C 70 C 70 C 70 C Fluid 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. Contact for questions concerning Engineering Material Specifications. 5.1 MATERIAL REFERENCE All related materials (na
22、me, supplier, spec.) used for approval of engine paint systems according to this specification, e.g. substrate, cleaner or pre-treatment materials, etc. shall be noted in the Initial Sample Report, together with test location and conditions. 5.2 AUTOMOTIVE LIQUIDS For tests per para 3.11.1 - 3.11.7
23、use Factory Fill material; for tests per para 3.11.12 and 3.11.13 use common brands. All test liquids (name, supplier) must be noted in the Initial Sample Report. Where test liquids involve the use of water * (coolant and windscreen wash) de-mineralized water should be used. Test Fuels are defined i
24、n FLTM AZ 105-02: Gasoline - Super, with Methyl Tertiary Butyl CME15A Ether (3.11.8) Gasoline - Super, with Ethanol (3.11.9) CE22A Alternative Fuel, with Ethanol (E85) (3.11.10) CE85A Alternative Fuel, with Methanol (M85) (3.12.11) CM85A 5.3 PROVING GROUND RESISTANCE - DETP (00.00R-311, p3-76-A) Pai
25、nt systems according to these specifications support the following Customer Requirements in effect January, 1997. A1 A2 A3 A4 Test cycles: Function 100 60 60 60 Serviceability 60 40 20 40 Appearance 20 20 10 0 Typical Examples: Oil pan and Engine Engine oil Engine, reservoir; visible; cooler, non-visible fuel system engine brackets parts. mounts
