FORD ESB-M33J3-A1-1996 ENAMEL COMPLIANCE VOC THERMOSET BASECOAT BASECOAT CLEARCOAT WET- ON-WET PROCESS - EXTERIOR TO BE USED WITH FORD WSS-M99P1111-A 《汽车外部的底涂层 透明涂层湿碰湿工艺用合规VOC含量的.pdf
《FORD ESB-M33J3-A1-1996 ENAMEL COMPLIANCE VOC THERMOSET BASECOAT BASECOAT CLEARCOAT WET- ON-WET PROCESS - EXTERIOR TO BE USED WITH FORD WSS-M99P1111-A 《汽车外部的底涂层 透明涂层湿碰湿工艺用合规VOC含量的.pdf》由会员分享,可在线阅读,更多相关《FORD ESB-M33J3-A1-1996 ENAMEL COMPLIANCE VOC THERMOSET BASECOAT BASECOAT CLEARCOAT WET- ON-WET PROCESS - EXTERIOR TO BE USED WITH FORD WSS-M99P1111-A 《汽车外部的底涂层 透明涂层湿碰湿工艺用合规VOC含量的.pdf(25页珍藏版)》请在麦多课文档分享上搜索。
1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1996 07 22 Revised Revised para 3.8.5.2, 3.8.9, 3.9.5.6 E. Nunez1996 06 07 Revised Upd a solution in water of 0.75 % by weight CaSO4adjusted to a pH of 4; deionized water (DI) and tap water,Bee Dropping (Ford Met
2、hod 24).ENGINEERING MATERIAL SPECIFICATION ESB-M33J3-A1/A5ESB-M33J3-B1/B5ESB-M33J3-C1/C5WP 3948-b Page 13 of 25Apply 0.05 mL of specified solutions along entire length of two test panels. Place on gradient bar (38 C - 82 C,calibrated for heat-up rate of 2 minutes or less for 0.09 mmsteel substrate).
3、 Remove one panel after 15 minutes attemperature, other after 30 minutes. Rinse any remainingsolution with water. Examine panels for etching,discoloration, pitting, etc. Report etch-free temperaturefor test material and control.The test enamel shall display resistance to chemical attackwhich is equa
4、l to or better than currently availableautomotive coatings technology.3.8.4 Cold Checking Resistance 15 cycles(FLTM BI 107-02, Cold Cycling Procedure only)No cracking or noticeable dulling permitted.3.8.4.1 Panel PreparationPrepare 3 panels according to para 3.4.1 through 3.4.4,applying paint at sta
5、ndard dry film thickness,utilizing the minimum, standard, and maximum enamelbakes of para 3.4.6 respectively. A total of 4 coatsof enamel shall be applied to each panel and bakedseparately, using the required baking schedule.Scuff-sand between enamel coats using #400 gritsandpaper or equivalent. The
6、 film thickness of thecombined cathodic electrocoat primer, primer surfacesand basecoat/clearcoat enamel shall be 380 +/- 5micrometre.3.8.5 Weathering Resistance3.8.5.1 Florida Exposure 120 Mos.(SAE J1976, Procedure A (To Failure)Miami area, facing south standard rackat 5 deg from horizontal)Test th
7、e following systems: fully-fortified basecoat/clearcoat systems - standard bake and catalyzed lowbake repair; and unfortifed basecoat/clearcoat system -standard bake (neither basecoat nor clearcoat willcontain UVAs or HALs). Prepare panels as per 3.4.5. Compare adhesion forfully formulated systems a
8、t low and standard filmthicknesses.ENGINEERING MATERIAL SPECIFICATION ESB-M33J3-A1/A5ESB-M33J3-B1/B5ESB-M33J3-C1/C5WP 3948-b Page 14 of 25Panels should be marked for SAE J1976, Procedure Atesting on the back. A vertical 25 mm line is scribedat the lower left corner of panels prior to Floridaexposure
9、 testing. (The scribe line is located 25 mmfrom the left edge of panel, and 10 mm from the bottomedge). Panels are exposed in 12 month intervals for atotal of 120 months (i.e., 12 months, 24 months, 36months). A total of 10 panels is required.Additional exposure panels shall be prepared andallowed t
10、o remain on test beyond the 10 yearrequirement until failure. Failure is defined as anydegradation which will render the paint filmunserviceable to the final customer.Note: The performance rating assigned to completed 60Months Florida exposure panel takes precedence over apanel of the same material
11、exposed for 2500 h inaccelerated weathering tests (Xenon Arc Weatherometerrefer to para 3.8.6.2).Panels on exposure longer than 24 months shall beretrieved from exposure site and washed as perrecommended washing procedure (FLTM BI 160-01, B, 1)every 24 months.Test for Adhesion on Completed Exposure
12、Panels: Clean exposure panels will be placed in a deionizedwater bath for 16 h per FLTM BI 104-01. After panelsare removed from water bath and thoroughly blown dry,an “X“, to be located at the center of panel and 50 mmfrom the bottom, is scribed. The “X“ shall be 30 mm inheight and 20 mm wide. Tape
13、the original scribe lineand the “X“ scribe with 3M 898-2 tape and check forpeeling and delamination between any layers. Thereshall be no blistering or delamination of any of thecoating layers.After two years Florida exposure, the panels shallexhibit no more than 15 % loss of original 20 degreegloss
14、(ref. para. 3.5.2) or more than 20 % loss oforiginal DOI (ref. para. 3.5.4).Note: If the completed Florida exposure panels requiremore thorough cleaning to facilitate proper evaluation,the lower 1/3 of the panels may be polished with FordCustom Silicone Gloss cleaner, part numberB7AZ-19530-AA, using
15、 a soft cloth. This procedure isperformed only after the panels have been previouslywashed and subjected to water immersion and the “X“-scribe tape pull.ENGINEERING MATERIAL SPECIFICATION ESB-M33J3-A1/A5ESB-M33J3-B1/B5ESB-M33J3-C1/C5WP 3948-b Page 15 of 25The panels shall show no more evidence of ch
16、alking,dulling, fading or other color change than the standardmaster sample on file. Also, the panels shall be freefrom cracking and microchecking when examined with theaid of a light source such as a Berkley ColortranMulti-1OA Lamp, Model 100-301 using a Sylvania 120V FBYbulb. Any evidence of such
17、cracking or microcheckingis considered to be a failure.3.8.5.2 Accelerated Exposure 6000 h(Modified SAE J1960, (To Failure)Xenon Arc Weatherometer,using Type “S“ BorosilicateInner and Outer filters,Radiant Exposure 0.55 W/m2)Clearcoat systems to be tested include: ESB-M33J3-A2 unfortified (without U
18、VAs or HALs), and ESB-M33J3-A2fully-formulated (with UVAs & HALs). These will beprepared as per 5.3.2, 5.3.3, 5.3.5.Fully-formulated basecoat/clearcoat systems to betested include: standard bake and catalyzed low-bakerepair. Prepare panels as per 3.4.5. Compareadhesion for fully formulated systems a
19、t low andstandard film thicknesses. Scribe vertical 25 mm line at lower left corner ofpanels and place in Apparatus at beginning ofcondensation cycle.Additional panels shall be prepared and tested tofailure with failure being defined as anydegradation rendering the film unserviceable to thefinal cus
20、tomer. Refer to para 5.3.1 for recommendedtesting schedule.Test for adhesion as per recommended procedure inFlorida Exposure (3.8.6.1). After 2000 h in weatherometer, the panels should notexhibit more than 15 % loss of original gloss (refpara 3.5.2) or more than 20 % loss of original DOI(ref para 3.
21、5.4).ENGINEERING MATERIAL SPECIFICATION ESB-M33J3-A1/A5ESB-M33J3-B1/B5ESB-M33J3-C1/C5WP 3948-b Page 16 of 253.8.6 Cracking Resistance 3 cycles(ISO 3231/DIN 50018 - SFW 2.0S)Testing is conducted in an environmental test chamber(Kesternich-type apparatus) as defined by ISO 3231/DIN 50018.The operation
22、 of the chamber during the test cycle shall beconducted in accordance with the procedures and requirementsoutlined in the Standard.Upon completion of required test cycles, the panels shallshow no evidence of cracking, peeling, fissures or theformation of any film defects, in excess of those observed
23、 ona control panel, which could cause paint failures onvehicles. The control panel shall be approved currentproduction enamel which shall be exposed simultaneously withthe test material.3.8.6.1 Test Cycle 24 h per cycleA test cycle consists of the following:(1) During the deep heating moist SO2 phas
24、e(SFW 2.0S), the panels in the test chamber areexposed to an atmosphere consisting of 100 %relative humidity at 40 +/- 3 C, in the presence of2.0 liters of sulfur dioxide for 8 hours.(2) The chamber atmosphere is then evacuated, andthe cabinet door opened to ambient room conditionsof 24 +/- 2 C and
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