1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 05 14 N Status No usage or replacement N. Benipal, NA 2008 02 29 Revised Format Update Only; No Technical Change 1984 03 05 Released CA01-RD 523779 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page
2、 1 of 6 PRIMER SURFACER, LOW BAKE EPOXY - EXEMPT SOLVENT TAUPE ESB-M6J120-E (10% REACTIVE SOLVENTS) NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an epoxy type primer-surfacer possessing good gloss, enamel holdout and corrosion resistance and is formulated to c
3、ure at a minimum metal temperature of 135 C. This material contains rust inhibitive type pigments to provide maximum corrosion resistance in critical areas. 2. APPLICATION This specification was released originally for a primer-surfacer used as a substrate for automotive synthetic baking enamels whe
4、n processing facilities are not available for the application of separate red and gray primer coats. Exempt solvent materials are used when conformance to the legal requirements of air pollution control authorities is mandatory for an assembly plant or other painting facility. 3. REQUIREMENTS The ma
5、terial shall meet all detailed requirements of this section. Tests shall be made on the basis of comparison with approved production material applied and tested under identical conditions. In the event that both the sample under test and the control material fail any requirements, that test shall be
6、 repeated. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COMPOSITION 3.2.1 Non-Volatile, min 53% (FLTM BI 102-01) 3.2.2 Exempt Solvent The volatile portion sha
7、ll not be photochemically reactive as defined below: A photochemically reactive solvent is any solvent with an aggregate of more than 10% of its total volume composed of the chemical compounds classified below or which exceeds any of the following individual percentage composition limitations, refer
8、red to the total volume of solvent: A combination of hydrocarbons, alcohols, aldehydes, esters or ketones having an olefinic or cycloolefinic type of unsaturation - 5%. A combination of aromatic compounds with eight or more carbon atoms to the molecule except ethylbenzene - 8%. ENGINEERING MATERIAL
9、SPECIFICATION ESB-M6J120-E Copyright 2012, Ford Global Technologies, LLC Page 2 of 6 A combination of ethylbenzene, ketones having branched hydrocarbon structures, trichloroethylene or toluene - 10%. Whenever any organic solvent or any constituent of an organic solvent may be classified from its che
10、mical structure into more than one of the above groups of organic compounds, it shall be considered as a member of the most reactive chemical group, that is, that group having the least allowable percent of the total volume of solvents. Enamels or primers sent to various regions of the country must
11、conform to E.P.A. rules and regulations for that region. 3.2.3 Specific Composition 3.2.3.1 Volatile Portion Suppliers shall furnish, on request, certification of conformance to para 3.2.2 of this specification to Ford Motor Company Purchasing, AAD, TAE Paint Systems and the assembly plant involved
12、for each color supplied. 3.3 PHYSICAL PROPERTIES 3.3.1 Weight per Volume at 25 C 10.0 lb/gal (1.2 kg/L) (FLTM BI 002-02) 3.3.2 Viscosity 22 - 32 s (FLTM BI 011-01) 3.3.3 Stability (FLTM BI 102-03) The material shall not jell, settle hard or increase in viscosity in excess of 10 s. 3.3.4 Volume Solid
13、s, min 38.0% The volume solids shall be determined on the primer after it is reduced to a viscosity of 45 s on a #2 Ford cup. The reducing solvent shall conform to para 3.2.2 of this specification and shall be similar to the reducing solvent used in the respective assembly plant. The following proce
14、dure shall be utilized for volume solids determinations: The weight percent solids of the paint as sprayed shall be determined using ASTM 2369-73 with the following provisions. The alternative in the method allowing the use of an infrared oven in the analytical procedure shall not be allowed in that
15、 erratic and inaccurate results may be obtained. The paint sample shall be distilled in accordance with ASTM D 3272-73T or an equivalent method such as the Rotary Vacuum Distillation Procedure which produces comparable results. The specific gravity of the paint sample and recovered solvent from the
16、distillation step shall be determined in accordance with ASTM D 1475 - 60. ENGINEERING MATERIAL SPECIFICATION ESB-M6J120-E Copyright 2012, Ford Global Technologies, LLC Page 3 of 6 From the above data, the volume percent solids can be calculated by the following equation: (Dp) % NVv = 100 - (100 - %
17、 NVw)(Ds) Where: % NVv = Volume percent solids % NVw = Weight percent solids Dp = Density of paint in lbs/gal Ds = Density of solvent in lbs/gal 3.4 PREPARATION OF TEST PANELS All materials submitted for initial approval shall be tested on both cold rolled steel and minimum spangle temper rolled qua
18、lity galvanized steel (ESB-M1A62 type) test panels for all requirements of this specification. 3.4.1 Primer-Enamel System (FLTM BI 103-02, Method “C“, with the following exceptions): Apply the primer (ESB-M6J120) directly to panels using current approved production material as a control. Bake separa
19、te sets of panels at maximum and minimum cycles shown in para 3.4.3. Apply enamels representative of all applicable current production qualities at 0.0016 +/0.0001 in (40 +/- 2 m) film thickness as follows: Black enamel Holdout 3.5.4 Water immersion 3.7.4 Humidity 3.7.5 White enamel All other tests
20、Bake the enamel 10 min at 129 C metal temperature (17 min at 129 C laboratory oven). 3.4.2 Primer Only Reduce primer (ESB-M6J120) to same viscosity limits as in para 3.4.1. Spray to a dry film thickness of 0.00075 in (19 m). Bake at both cycles shown in para 3.4.3. ENGINEERING MATERIAL SPECIFICATION
21、 ESB-M6J120-E Copyright 2012, Ford Global Technologies, LLC Page 4 of 6 3.4.3 Baking The material shall pass all requirements when baked at both the following schedules: Metal Temperature Laboratory Oven* Bake, min 8 min at 135 C 15 min at 135 C Bake, max 20 min at 163 C 30 min at 163 C *As specifie
22、d in FLTM BI 103-02 3.5 APPEARANCE After preparing panels of the material under test and production primer according to para 3.4.1, the primer under test shall be equal to or better than current approved production materials when tested under identical conditions for the following properties. 3.5.1
23、Color Taupe (No darker or lighter than master panels on file in the Body Materials Engineering Department) 3.5.2 Gloss, min 30 (FLTM BI 110-01, 60 Glossmeter) Panels are prepared per para 3.4.3. 3.5.3 Leveling The primer film shall level with a minimum of orange peel. The surface of the material und
24、er test shall be equal to or better than current approved production material for smoothness when applied and baked under identical conditions. 3.5.4 Holdout There shall be no evidence of dulling or strike-in when enamel color coat is applied over sanded or unsanded primer surfacer, and no differenc
25、e in gloss of the color coat between sanded and unsanded primer. There shall be no prominence of sand scratches. Tests shall be made at both maximum and minimum bake cycles. 3.6 FILM PROPERTIES 3.6.1 Dry Sanding Characteristics The primer, when applied and baked at both maximum and minimum cycles as
26、 outlined in para 3.4.3 shall dry sand (using a new sheet of 280 grit stearate filled paper for each panel) smoothly without clogging the paper and with a minimum of sand scratches. The material shall be equivalent in all respects to current approved production primer applied and tested under identi
27、cal conditions. ENGINEERING MATERIAL SPECIFICATION ESB-M6J120-E Copyright 2012, Ford Global Technologies, LLC Page 5 of 6 3.6.2 Adhesion (FLTM BI 106-01) Test material versus current approved production primer. 3.6.2.1 Enamel to Primer Prepare panels per para 3.4.1, except that only one-half of the
28、adhesion test panel is to be sanded. Adhesion of the enamel to sanded or unsanded primer shall be satisfactory and equal to or better than current approved material, with no chipping, flaking or peeling. 3.6.2.2 Primer to Metal Prepare panels per para 3.4.2. Adhesion shall be satisfactory and equal
29、to or better than current approved primer, with no chipping, flaking or peeling. 3.7 RESISTANCE PROPERTIES 3.7.1 Chip Resistance (FLTM BI 007-01) Prepare panels according to para 3.4.1 using current approved production primer for comparison, and production quality white color coat. Chipping shall be
30、 no greater for the test material than for approved current production primer and shall not exceed Fig 4. 3.7.2 Salt Spray, min 240 h (FLTM BI 103-1) No failure in the specified times by blistering, rusting or more than 1/8 in (3 mm) rust or blister creepage from a line scribed to bare metal on pane
31、ls prepared according to para 3.4.2. 3.7.3 Bimetallic Salt Spray Corrosion (FLTM BI 103-01) No more than 1/8 in (3 mm) rust, blister creepage or loss of adhesion after (1) 240 h at the scribe, and (2) 750 h on the CRLC steel adjacent to the joint (disregarding scribed area). Prepare panels according
32、 to FLTM BI 103-02, Method “C“ with the following exceptions: The test panels shall consist of two 4 x 12 in (100 x 300 mm) clean unphosphated panels (one polished CRLC steel and one minimum spangle temper rolled galvanized steel - ESB-M1A62 type) as described in FLTM BI 103-02, flanged and spot wel
33、ded together along the 12 in (300 mm) dimensions to form a coach joint. The inside radius shall be 1/8 in (3 mm) and the flange shall be 5/8 in (16 mm) wide with spot welds spaced every 2 in (50 mm). The composite panel shall be zinc phosphate coated per FLTM BI 103-01, primed with 0.0010 +/- 0.0001
34、 in (25 +/- 2 m) of ESB-M6J120 baked for 8 min at 135 C metal temperature, (omit sanding), topcoat with 0.0018 +/- 0.0005 in (46 +/- 13 m) production quality white enamel and baked 10 min at 129 C metal temperature. ENGINEERING MATERIAL SPECIFICATION ESB-M6J120-E Copyright 2012, Ford Global Technolo
35、gies, LLC Page 6 of 6 The painted panel shall then be scribed to base metal across the two substrates, and aged 72 h at 23 +/- 2 C. 3.7.4 Water Immersion, min 500 h (FLTM BI 104-01) Panels are prepared according to para 3.4.1. No blistering or loss of gloss. 3.7.5 Condensing Humidity, min 240 h (FLT
36、M BI 104-02 Procedure “A“) Panels are prepared according to para 3.4.2. No blistering or loss of gloss. 3.7.6 Florida Exposure Panels prepared as in para 3.4.2, scribed with an “X“ to bare metal and exposed in the Miami, Florida area, at 5 facing south for 12 months shall show no blistering, peeling
37、, or visible rusting along the scribe marks more than 1/8 in (3 mm) total width. 3.8 PRODUCTION TRIAL Final approval of all functional and sanding characteristics shall be made by the using Manufacturing Divisions, of the material or painted part on the basis of a shop trial under production conditi
38、ons (Paint Test Report - Functional - Form -371). 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 FLASH POINT, min 14 C (ASTM D 92) 4.2 FLAMMABILITY This material represents a potential fire hazard. The Manufacturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in the Plant to assure that proper fire precautions are provided. The location in which it is used or stored shall be included in the notifications.
