GMNA-9982150-1989.pdf
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1、I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Paint I COATING, ANTICORROSION, PENETRANT, AMBER 9982150 1 SCOPE. This specification covers a corrosion preven- tive material which must provide a protective coating for steel and painted steel surfaces. The material is designed for
2、spray applications to penetrate the crevices to which it is applied. The steel may have been treated with various phosphates, production primers, sealers, and topcoats. Compatibility with each of these substrates in a variety of conditions must not affect the corrosion inhibiting properties of the a
3、nticorrosion coating. It will usually be applied in the post oven areas of normal paint operations. It shall be homogeneous, free of chlorinated solvent, asphalt, or fibrous filler such as asbestos. It shall dry to a permanently soft coating without sagging or refluxing upon itself. The visibility o
4、f the material is enhanced by blacklight. 2 REFERENCED STANDARDS. GM4298P GM9511P GM4465P GM9536P GM9010P 9980793 GM901 1P 998 1062 GM9032P 9984017 GM9505P 9984070 ASTM D56 ASTM 2369 SAE 1008 SAE 1010 3 REQUIREMENTS. The material shall be supplied with all thinners added and be appliable in the as r
5、eceived condition. The material must contain exempt solvent or blends so that environmental control regulations are met. The corrosion compound shall meet the requirements of this specification on bare and ELPG surfaces. 3.1 Physical Properties (See Table 1). Properties High Temperature Plow Neutral
6、 Salt Spray, 500 h Corrosion Cycle, 30 cycles Humidity Resistance, 500 h Reverse Cold Impact; Two 2.8 Joules at -28.9 C Salt Solution Partial Immersion Detergent Solution Partial Immersion Topcoat Cleanability Topcoat Compatibility Penetration Crevice Protection Properties Color Solids % by mass, mi
7、n. Flash Point C, min Volatile Organic Content, kg/L, max TABLE 1 Values 1 Test Methods Amber, Natural Color I 60 18 0.359 (3.0 lbs/gallon max) GM9010P ASTM D56 ASTM D2369 3.2 Performance Requirements (See Table 2). 3.2.1 Test Methods. Test method references are shown in Table 2 with each of the req
8、uirements. The following notes state the requirements where formal test methods do not exist. 3.2.2 The material is to meet this specification on solvent cleaned cold rolled steel panels coated with cathodic ELPO 9984017, Uniprime 9984070, or production topcoat. The material is allowed to air dry 72
9、 h prior to test, unless otherwise noted. NOTE 1: The material shall withstand 168 h of partial immersion in a 5% salt water solution at 100% RH and 38 C. After removal from test, panels shall be lightly hand rubbed under 38 + 3 C tap water to remove degraded material. NOTE 2: The material shall wit
10、hstand 168 h of partial immersion in detergent solution consisting of 2.5 g of Dupont #7 car wash compound per liter of tap water. The test is similar to above, except conducted at 24 2 3 C. TABLE 2 VallleS Test Methods No flow at 250 elm No rust at 50 c No rust at 50 c No defects No separation io m
11、inutes at 93 C GM4298P GM9505P, Cycle G GM4465P GM9032P No rust, no removal No rust, no removal Removable, no staining No discoloration 500 times gap width and door and deck lid hems No rust after 10 wks on hem flanged panels or door and deck lid hems NOTE 1 NOTE 2 NOTE 3 NOTE 4 GM9536P NOTE 5 SEPTE
12、MBER 1989 PAGE 1 9982150 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- - 9006379 0002903 7L2 m I GENERAL MOT
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