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    FORD ESK-M70J7-A-2011 PRIMER POWDER STEEL ALUMINUM EC TO BE USED WITH FORD WSS-M99P1111-A 《钢和铝粉末乙基纤维素底漆 与福特WSS-M99P1111-A 一起使用》.pdf

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    FORD ESK-M70J7-A-2011 PRIMER POWDER STEEL ALUMINUM EC TO BE USED WITH FORD WSS-M99P1111-A 《钢和铝粉末乙基纤维素底漆 与福特WSS-M99P1111-A 一起使用》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2011 12 07 N Status No replacement named N. Benipal, NA 2005 07 29 Revised Inserted 3.0; Deleted 3.1, 3.7 and 4 1987 11 02 Released SM/EQ0762 TP Controlled document at www.MATS Copyright 2011, Ford Global Technologies, LLC Page 1 of 3

    2、PRIMER, POWDER, STEEL, ALUMINUM, EC ESK-M70J7-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a powder primer. It is formulated for maximum surface quality and hold-out properties after baking. 2. APPLICATION This specification was released originally for a mat

    3、erial used as a primer on Zn-phosphated steel, chromated aluminum and on EC surfaces. The primer is used under solid color and two coat metallic topcoats and is suitable for electrostatic and pneumatic spray application. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material sup

    4、pliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COMPOSITION 3.2.1 Vehicle Powder Combination of epoxy and polyester resins, heat curing. 3.2.2 Pigments Inert pigments and fillers to obtain the desired color and properties. T

    5、he use of non-inert pigments and fillers, e.g. zinc oxide, zinc sulfide or calcium carbonate is not permitted. 3.3 PHYSICAL PROPERTIES 3.3.1 Density 1.6 +/- 0.05 (ASTM D 153) 3.3.2 Non-Volatile 100% (FLTM BI 102-01) 3.3.3 Gel Time 100 +/- 10 s (Hot Plate 80 C) 3.3.4 Tukon Hardness, min 15 (FLTM BI 1

    6、12-02) ENGINEERING MATERIAL SPECIFICATION ESK-M70J7-A Copyright 2011, Ford Global Technologies, LLC Page 2 of 3 3.3.5 Storage Stability, min 6 months The material must not show any caking within 6 months after receipt at Ford in the original package. Storage temperature between 5 and 28 C. 3.4 PREPA

    7、RATION OF TEST PANELS 3.4.1 Three Coatings Substrate: Baked EC undercoat The Electrocoat shall not be sanded. For preparation of test panels, see FLTM BI 103-02, Method B b. Baking: 10 minutes at 190 C metal temperature. Primer: ESK-M70J7-A Solid color top coat: SK-M98J9552-A Two coat metallic: See

    8、S-M32J110-C/SK-M32J9553-A 3.4.2 Two Coatings Substrate: Steel, Zn-phosphated Aluminum, chromated The coated panels are to be cleaned. For preparation of test panels, see FLTM BI 103-02, Method C. Baking: 10 minutes at 190 C metal temperature. Primer: ESK-M70J7-A Solid color top coat: SK-M98J9552-A T

    9、wo coat metallic: S-M32J110-C/SK-M32J9553-A 3.4.3 Ageing The test panels shall be aged for 72 hours at room temperature prior to testing. 3.5 DRY FILM PROPERTIES 3.5.1 Dry Film Thickness 55 +/- 5 micrometre (FLTM BI 117-01) 3.5.2 Gloss 95 +/- 5 (FLTM BI 110-01, 60 glossmeter) 3.5.3 Sanding After bak

    10、ing, the primer is to be water sanded by hand without clogging the paper (No. 400) and with minimum sanding scratches. The water may not leave any marks on the surface. ENGINEERING MATERIAL SPECIFICATION ESK-M70J7-A Copyright 2011, Ford Global Technologies, LLC Page 3 of 3 3.5.4 Hold Out There shall

    11、 be no evidence of dulling or strike in or difference in gloss when the top coat is applied to sanded and unsanded primer. Sanding scratches shall be hardly visible. 3.6 RESISTANCE PROPERTIES 3.6.1 Adhesion No chipping (FLTM BI 106-01, Method B) a) Top coat to unsanded primer. b) Primer to unsanded

    12、substrate. 3.6.2 Chip Resistance 1 (FLTM EU-BI 007-01) a) Top coat to unsanded primer. b) Primer to substrate. 3.6.3 Stone Chip Resistance (FLTM EU-BI 057-02), max 0.5 (FLTM BI 157-04), max 3 3.6.4 Salt Spray Resistance, min 240 h (FLTM BI 103-01) No blistering and rusting on the panel surface and n

    13、o more than 4 mm rust creepage and loss of adhesion from a scratch scribed to the bare metal. 3.6.5 Water Immersion Test, min 240 h (FLTM BI 104-01) No blistering, no loss of adhesion, no loss of gloss accepted. 3.6.6 Florida Exposure 12 months (FLTM BI 160-01) Panels with a selection of affected to

    14、pcoats (bright, medium bright and dark, metallic and non-metallic) shall be exposed in the area of Miami, Florida, 5 facing south. After the exposure, the surface shall show neither blistering nor peeling nor any other defects caused by the primer. 3.6.6.1 Condensing Humidity Test 48 h (ASTM D 2247) After evaluation, the Florida exposed panels have to be tested in Condensing Humidity Test. No blistering. 3.6.6.2 Adhesion No chipping (FLTM BI 106-01, Method B) Adhesion shall be performed on test panels from para 3.6.6.1, after conditioning for 24 hours at room temperature.


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