FORD ESB-M62J7-A2-1978 PRIMER WATER DISPERSIBLE - BLACK FLOW COAT《黑色流涂式水分散型底漆》.pdf

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1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1978 10 06 Metricated and Retyped CAH1-RD572066-1201977 01 04 Released AG1-6000-1653948-a Page 1 of 4PRIMER, WATER DISPERSIBLE - BLACK FLOW COAT ESB-M62J7-A21. SCOPEThe material defined by this specification

2、 is a black, water dispersible,non-bleeding, baking primer.2. APPLICATIONThis specification was released originally for paint used as a dipping orflow coating primer for automotive parts, such as in the enginecompartment. The requirements vary depending on the paint performancerequirement specified

3、on the engineering drawing.3. REQUIREMENTS3.1 PHYSICAL PROPERTIES3.1.1 ToxicityThe material shall not contain any benzol (benzene),chlorinated or other toxic compounds, or hydrolyzablechlorine derivatives, nor have an obnoxious orobjectionable odor.3.1.2 Viscosity 55 - 100 s(FLTM BI 11-1)Except wher

4、e noted on Materials Approval Report.3.1.3 Non-Volatile, min 35 %(FLTM BI 2-1)3.1.4 Weight Per Volume 9.5 +/-0.5(FLTM BI 2-2) lb/gal (1.14+/- 0.06 kg/L)3.1.5 Application Viscosity, min 18 s(FLTM BI 11-1)When the material is reduced with the tap water to 18 s,the paint film thickness shall not be les

5、s than 0.0003 in(8 m) as measured 1/2 in (13 mm) from the top edgeof a test panel.3.1.6 Stability(FLTM BI 11-1)ENGINEERING MATERIAL SPECIFICATION ESB-M62J7-A2Page 2 of 43.1.6.1 Virgin MaterialAfter 30 days shelf aging stability at roomtemperature 23 +/- 2 C, the virgin viscosityshall not change grea

6、ter than +/-10 s. Anysettling shall disperse with normal hand stirredagitation.3.1.6.2 Reduced MaterialReduce the virgin material with the tap water tothe necessary viscosity required to obtain a filmthickness of 0.0004 in (10 m) 1/2 in (13mm) below the top of a test panel preparedaccording to FLTM

7、BI 3-2 Method “D“. Place asealed pt (0.5 L) can, 3/4 full of reducedmaterial, in an oven at 60 +/- 1 C for 16 h.There shall be no change in viscosity greaterthan +/- 5 s or any settling which cannot bedispersed with normal hand stirred agitation.3.1.7 Flash Point, min 93 C(ASTM D 93)3.2 PREPARATION

8、OF TEST PANELS(FLTM BI 3-2, Method “D“)Prepare panels, using a suitable viscosity on separate panels toobtain a min dry film thickness of 0.0003 in (8 m), 0.0004in (10 m) and 0.0005 in (13 m), respectively.Bake 15 min at 177 C. All test panels are to be phosphatedaccording to ESB-M3P1-A, using an ap

9、proved chrome free rinse. Testpanels shall be flat, 4 x 12 in (100 x 300 mm) approximately 20gauge unpolished, CRLC body steel identified as paint testingquality steel by an embossed letter “F“ on the test side of thepanel. Steel for these test panels is specified by MaterialsEngineering Department,

10、 BEPE and selected periodically from coil(s) representative of production steel employed in Ford Productionbody panels. They shall be scribed as specified in FLTM BI 3-1before exposure.3.3 PREPARATION OF TEST PARTS(FLTM BI 17-1)Parts for this test can be obtained from the Body MaterialsEngineering D

11、epartment, Body Engineering Office. All parts are tobe phosphated according to ESB-M3P1 using an approved chrome freerinse. All test parts are to be prebaked 5 min at 149 C prior topainting.Prepare the parts by dip painting using a suitable viscosity toobtain a min dry film thickness of 0.0005 in (1

12、3 m). Hangthe parts in a vertical position for 10 min at room temperatureimmediately followed by a 10 min bake at 93 C. A final bake of 15min at 177 C is required.ENGINEERING MATERIAL SPECIFICATION ESB-M62J7-A2Page 3 of 43.4 APPEARANCE3.4.1 Color Black3.4.2 GeneralThe material shall bake out to a sm

13、ooth uniform film withno sags, dust or seed.3.5 FILM PROPERTIES3.5.1 Film Thickness(FLTM BI 17-1)0.0003 in (8 m) min when the primed part will besubjected to light weathering exposure and/or ESB-M2P30 isspecified.0.0004 in (10 m) min when the primed part will besubjected to moderate weathering expos

14、ure and/or ESB-M2P29is specified.0.0005 in (13 m) min when the primed part will besubjected to severe weathering exposure and/or ESB-M2P28 isspecified.3.5.2 Scratch Adhesion(FLTM BI 6-1, Method “A“)Adhesion shall be equal to or better than current approvedprimer.3.6 RESISTANCE PROPERTIES3.6.1 Salt S

15、pray Resistance(FLTM BI 3-1)Panels Parts0.0005 in (13 m) film thickness 168 h 96 h0.0004 in (10 m) film thickness 120 h 48 h0.0003 in (8 m) film thickness 96 h 24 hFailure on panels is defined as blistering and/or more than1/8 in (3 mm) of rust creepage or loss of adhesion from ascribe line to bare

16、steel. Failure on parts is defined asblistering in any area and/or corrosion creepage or loss ofadhesion more than 1/8 in (3 mm) from scratches or scoremarks.Blistering, corrosion creepage or loss of adhesion in areas1/4 in (6 mm) from upper edges, holes, embossments, lapjoints, sharp edges or seam

17、extensions shall not beconsidered failures.ENGINEERING MATERIAL SPECIFICATION ESB-M62J7-A2Page 4 of 43.6.2 Water Immersion (Panels Only), min 96 h(FLTM BI 4-1)Failure is defined as blistering, peeling, or loss ofadhesion.3.6.3 FoamingNo more than a current approved production material. TestMethod: F

18、ill a 1/2 pt (0.5 L) can with 100 +/- 5 g ofmaterial at application viscosity. Agitate on a paintshaker for 5 min. Shall be equal to or better than thecurrent, approved production material.3.7 PRODUCTION FEASIBILITYUpon successful completion of the above requirements, the flow coatmaterial will be e

19、valuated on a trial basis in an assembly plantfor production feasibility.Production painted parts must meet the requirements of EngineeringPerformance Specification ESB-M2P28-B and Engineering SpecificationES-D7AB-1301-AA before final approval will be issued.3.8 SUPPLIERS RESPONSIBILITYMaterial supp

20、lied to this specification must be equivalent to thatoriginally approved. Changes in formulation or processing shallnot be made without prior approval as described in SupplierProcedure I-A.4. APPROVAL OF SUPPLIERSSuppliers to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specificmaterial to a new/existing ES-M specification is contained in SupplierProcedure I-A. Approved new suppliers will be added to the EngineeringMaterials Approved Source List.