1、 METRIC MIL-DTL-24441/27B(SH) 27 August 2009 SUPERSEDING MIL-DTL-24441/27A(SH) 19 May 1999 DETAIL SPECIFICATION SHEET PAINT, EPOXY-POLYAMIDE, NO. 50 GRAY FORMULA 157, TYPE III This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by
2、 all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24441. FORMULA: This formula covers gray epoxy-polyamide paint designated Navy Formula 157, Type III for interior or exterior
3、use. The paint shall consist of the ingredients specified in the quantities specified. Component A12/Ingredients Kilograms Pounds Thixatrope1/ - - Polyamide2/ 9.53 21.0 Polyamide adduct3/ 134.72 297.0 Titanium dioxide4/288.94 637.0 Black iron oxide5/ 3.63 8.0 Butyl alcohol6/121.11 267.0 Component B1
4、2/Ingredients Kilograms Pounds Thixatrope7/ - - Epoxy resin8/240.41 530.0 Magnesium silicate9/ 120.2 265.0 Naphtha10/ 100.25 221.0 See footnotes on next page. AMSC N/A FSC 8010 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24441/27B(SH) QUA
5、NTITATIVE REQUIREMENTS: The paint shall meet the following quantitative requirements and the qualitative requirements of section 3 of the general specification. The components A and B shall be mixed 1:1 by volume for mixed component tests. Tests shall be performed in accordance with the general spec
6、ification. Component A Component B Mixed components Requirements Min Max Min Max Min Max Pigment content, percent (%) 51.0 55.0 24.8 28.8 - - Volatiles, % 24.8 28.8 19.6 23.6 - - Nonvolatile vehicle, % 17.6 21.6 49.6 53.6 - - Water, % - 1.5 - 0.5 - - Coarse particles, % - 0.3 - 0.3 - - Consistency,
7、grams - 220 - 275 - - Kilograms per liter (kg/L) (pounds per gallon (lb/gal) 1.44 (12.0) 1.56 (13.0) 120 (10.0) 1.32 (11.0) - - Set to touch, hours a. at 4.4 C (40 F) - - - - - 2 b. at 23 C (73 F) - - - - - 2 Dry-hard, hours a. at 4.4 C (40 F) - - - - - 24 b. at 23 C (73 F) - - - - - 6 Fineness of g
8、rind, NS 4 - 5 - - - Flash point, C (F) 35.6 (96) - 37.8 (100) - 35.6 (96) - Titanium dioxide, % of pigment 91 - - - - - Pot life, hours at 23 C (73 F) - - - - 5 - Sag resistance, micrometers (mils) - - - - 225 (9) - Color of dry film to approximate the standard color chip - - - - Conform Weight per
9、 epoxy vehicle - - 175 195 - - Contrast ratio, 3-mil dry film thickness - - - - 0.98 - Gloss, 60 degree specular, % - - - - 20 60 VOC, grams per liter (g/L) (lb/gal) - - - - - 340 (2.8) 1/Thixatrope to be used is the manufacturers choice. In the development of component A, 6.80 kilograms (15 pounds)
10、 (7.95 liters (2.1 gallons) of Disparlon NS-30 made by King Industries were used. Manufacturer is responsible for choosing a thixatrope that meets all the requirements herein, including shelf life. Thixatrope is a pigment for calculation purposes.2/GENAMID 2000, Cognis Corp.; ANCAMIDE 507, Air Produ
11、cts Chemical Corp.; EPOTUF SF7791, REICHHOLD Chemical. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24441/27B(SH) 3 3/VERSAMID 280B75, Cognis Corp.; ANCAMIDE 700B75, Air Products Chemical Corp.; EPOTUF SF7792, REICHHOLD Chemical. 4/Titan
12、ium dioxide conforming to ASTM D476, Type IV. In the development of component A, DuPont Tipure R960 was used.5/Black Iron Oxide Bk-5599, Elementis Pigments; Bayferrox Iron Oxide Black 318M, Lanxess Pigments6/Butyl alcohol conforming to ASTM D304.7/Thixatrope to be used is the manufacturers choice. I
13、n the development of component B, 6.80 kilograms (15 pounds) (6.81 liters (1.8 gallons) of Dislon 6500 made by King Industries were used. Manufacturer is responsible for choosing a thixatrope that meets all the requirements herein, including shelf life. Thixatrope is a pigment for calculation purpos
14、es.8/EPON 828, Hexion Chemical Co.; ARALDITE 6010, Huntsman Advanced Materials; DER 331, Dow Chemical Corp.; EPO-TUF 37-140, REICHHOLD Chemical Corp.9/Nicron 503, Luzenac, Inc.10/Conforming to ASTM D3734, Type I. In the development of component B, AMSCO Super High Flash Naphtha was used.11/Use FED-S
15、TD-595 color chip number 26622. Color shall approximately match the color chip.12/For VOC calculations, component A makes approximately 379 liters (100 gallons) and component B makes approximately 386 liters (102 gallons).Use of alternate ingredients in this formula must have prior approval of the N
16、aval Sea Systems Command. Approval will be base on review of data demonstrating equivalent physical, chemical and performance characteristics of paint manufactured with the proposed alternate material and the requirements as specified in paragraph 3.4.1 of MIL-DTL-24441. Paint incorporating the prop
17、osed alternate ingredient shall conform to all of the requirements of this military specification sheet and the general specification.CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes.
18、Preparing Activity Navy SH (Project 8010-2009-011) NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
