1、k c MIL-T-704K 999990b 1490226 254 m SENSITIVE MIL-T-704K 4 November 1992 SUPERSEDING MIL-T-704J 28 May 1985 MILITARY SPECIFICATION TREATMENT AND PAINTING OF MATERIEL This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 ScoDe. This specifi
2、cation covers materials to be used and procedures to be followed in cleaning, treating, and painting of materiel to provide protection against rust, corrosion, and deterioration. 1.2 Classi,fication. The treatment andpainting shall be of the following types as specified in the end item specification
3、: Type A - General . For use where other types are not specified. Type B - For water immersion and salt air exposure. Type C - For a one-coat finish for refinishing or warehouse storage. Type D - High humidity, fast schedule system. Type E - High humidity, fast schedule, lacquer finish. Type F - For
4、 use on ferrous metals where chemical agent resistance is Type G - For use on nonferrous metals where chemical agent resistance required, or for greater durability. is required, or for greater durability. Beneficial comments (recommendations, additions; deletions) and any pertinent data which may be
5、 of use in improving this document should be addressed to: USA Belvoir Research, Development, and Engineering Center, ATTN: SATBE-TSE, Fort Belvoir, VA 22060-5606 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FS
6、C 8010 DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-704K 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 SDecifications and standards. The following sp
7、ecifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitatio
8、n (see 6.2). SPECIFICATIONS FEDERAL QQ-P-416 TT-C-490 TT-E-485 TT-E-489 TT-E-527 TT-E-529 TT- P-28 TT-P-645 TT-P-664 TT-P-1757 MI L I TARY MIL-B-2427 MIL-M-3171 MIL-S-5002 MIL-C-5541 MIL-C-8514 MIL-A-8625 MIL-P-14105 DOO-P-15328 MIL-P-15931 MIL-C-22750 MIL-P-23377 MIL-P-24441 MIL-E-24635 MIL-C-46168
9、 MIL-L-52043 MIL-P-53022 MIL-P-53030 - Plating, Cadmium (Electrodeposited). - Cleaning Methods for Ferrous Surfaces and Pretreatments for - Enamel , Semigloss, Rust-Inhibiting. - Enamel , Alkyd, Gloss, Low VOC Content. - Enamel, Alkyd, Lusterless, Low VOC Content. - Enamel , Alkyd, Semi-gloss, Low V
10、OC Content. - Paint, Aluminum, Heat Resisting (1200 “F). - Primer, Paint, Zinc-Molybdate, Alkyd Type. - Primer Coating, Alkyd, Corrosion-Inhibiting, Lead and - Primer Coating, Zinc Chromate, Low-Moisture Sensitivity. Organic Coatings. Chromate Free, VOC Compl iant. - Box, Ammunition Packing, bod, Na
11、iled. - Magnesi um Alloy, Processes for Pretreatment and Prevent ion - Surface Treatments and Inorganic Coatings for Metal Surfaces - Chemical Conversion Coatings on Al uminum and Al uminum - Coating Compound, Metal Pretreatment, Resin-Acid. - Anodic Coatings, for Aluminum and Al uminum Alloys. - Pa
12、int, Heat-Resisting (for Steel Surfaces). - Primer (Wash) , Pretreatment, - (Formula No. 117 for Metal S) - Paint, Antifouling, Vinyl (Formulas No. 121, 121A, 129, and - Coat i ng , Epoxy, VOC-Compl i ant. - Primer Coatings: Epoxy, Chemical and Solvent Resistant. - Paint, Epoxy-Polyamide, General Sp
13、ecification For. - Enamel , Gray, Silicone Alkyd Copolymer Semigloss (for - Coating, Aliphatic Polyurethane, Chemical Agent Resistant. - Lacquer, Semi Gloss, Cellulose Ni trate. - Primer, Epoxy Coating, Corrosion Inhibiting, Lead and - Primer Coating, Epoxy, Water Reducible, Lead and Chromate of Cor
14、rosion on. of Weapons Systems. Al 1 oys. (Metric). 129A) . Exterior Use) (Metric). Chromate Free. Free. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c MIL-T-704K W 9999906 L490228 027 m MIL-T-704K MIL-C-53039 - Coating, Aliphatic Polyurethane, S
15、ingle Component, Chemical MIL-P-53084 - Primer, Cathodic Electrodeposition, Chemical Agent MIL-P-85582 - Primer Coatings: Epoxy, Waterborne. Agent Resistant. Resistant. STANDARDS MILITARY MIL-STD-889 - Dissimilar Metals. FEDERAL FED-STD-595 - Colors Used in Government Procurement. (Unless otherwise
16、indicated, copies of federal and military specifications and standards are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government Dublications. The following document(s) form a part of this document to the extent spe
17、cified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (
18、see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 4956 - Sheeting, Reflective, for Traffic Control. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia PA 19103.) AMERICAN WOOD PRESERVERS BUREAU (AWPB) AWPB St
19、andard LP-2 - Standard for Softwood Lumber, Timber and P Treated with Water-Borne Preservatives for Use. AWPB Standard LP-22 - Standard for Softwood Lumber, Timber and P Treated with Water-Borne Preservatives for Use. (Application for copies should be addressed to the American Wood Pre Bureau, P.O.
20、Box 6085, 2772 S. Randolph Street, Arlington, VA 22206). STEEL STRUCTURES PAINTING COUNCIL (SSPC) SSPC-SP5 - White Metal B1 ast Cleaning. SSPC-SP6 - Commercial B1 ast Cleaning. SSPC-SP10 - Near-White Blast Cleaning. ywood Pressure Above Ground ywood Pressure Ground Contact servers 3 Provided by IHSN
21、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-709K W 9999906 3990227 Tb3 m * MIL-T-704K (Application for copies should be addressed to the Steel Structures Painting Council, 4400 Fifth Avenue, Pittsburgh, PA 15213.) (Non-Government standards and other public
22、ations are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of mecedence. In the event of a conflict between the text of this document and the references cited
23、 herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Cleaning. Unless otherwise specified in the end item specification, cleaning procedures shall be in ac
24、cordance with TT-C-490 or as described herein. Cleaning may be accompl ished by: a. Chemical methods such as solvent cleaning, alkaline cleaning, acid b. Electrochemical cleaning methods such as electrolyte al ka1 ine, c. Mechanical means such as blasting, chipping, wire brushing, or grinding. clean
25、ing, pickling, descaling with hydride, or paint stripping; or, electropol ishing, or electrolytic pickling; or, After cleaning, all surfaces shall be kept free from dirt, dust, finger marks, and other contaminants, until treated as specified in 3.2. 3.1.1 Ferrous metal surfaces. Ferrous metal surfac
26、es to be painted shall be cleaned in accordance with 3. l. Where blasting -is appropriate , blast in accordance with Steel Structures Painting Council (SSPC) SSPC-SP6 unless SSPC-SP5 or SSPC-SP10 is specified (see 6.2), to remove mill scale, products of corrosion, dirt, casting sand slag, and other
27、foreign substances. (For further information, see Steel Structures Painting Council Manual, Volume 2.) Prior to blasting, the surface shall be cleaned as specified in 3.1 to insure that it is free from all oil and grease. The blasting medium shall be kept free from oil, grease, dirt or any other mat
28、erial that could contaminate the surface. Oil and grease contamination resulting from fabrication, machining, or handling subsequent to cleaning shall be removed in accordance with the appropriate method of TT-C-490. Blast cleaned surfaces shall be pretreated within four hours, and then given a prim
29、e coat as soon as possible. 3.1.1.1 Exemptions from abrasive blastinq. Blasting shall not be used on surfaces which could be damaged by blasting, such as machined parts or sheet metal thinner than 16 gage (0.0625 inch), or on components containing such surfaces unless protective masking has been app
30、lied. Blasting is optional on components of equipment which are painted for protection during limited storage and from which the paint will be worn off immediately when the equipment is placed into use (see 6.4). However, these surfaces shall be dry and free from oil, grease, dirt, and rust. 3.1.1.2
31、 Vehicles. Ferrous metal surfaces of vehicles (see 6.5) shall be cleaned for painting in accordance with 3.1.1 except as specified herein. Surfaces that cannot be cleaned by blasting may be cleaned to base metal by such alternate means as three dimensional/abrasive cleaning, chipping, powered wire b
32、rushing, or grinding to the required degree specified for commercial sand blasting. Sheet metal and sheet metal parts of 8 gage (0.164 inch) and thinner may be cleaned to bare metal by 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c a a a * acid
33、pic MIL-T-704K 999990b 1490230 785 D MIL-T-704K kling in accordance with TT-C-490, with a maximum of five percent sulfuric acid incl uded. However, chemical cleaning may not be approved for use on assembl ies which may entrap acid/alkali, or when for any reason chemical cleaning is considered inadvi
34、sable. Old paint may be removed from vehicles requiring repainting by the use of a paint remover. 3. l. 2 Zinc surfaces. Zinc surfaces, i ncl uding zi nc-coated substrates, shal cleaned prior to painting as follows: degrease, soak in a mild and inhibited alkaline cleaner, rinse with clean overflowin
35、g water, clean anodically in an inhibited alkaline solution, hot rinse, cold rinse, neutralize in an acid (e.g 0.25 to 0.75 percent sulfuric acid), and rinse with clean overflowing water. shall be followed immediately by treatment as specified in 3.2.1. 1 be iii s 3.1.3 Aluminum and al uminum alloy
36、surfaces. Aluminum and aluminum alloys shall be cleaned in accordance with 3.1, followed immediately by treatment as specified in 3.2.2. 3.1.4 Maqnesium al lov surfaces. Magnesium alloy surfaces shall be cleaned in accordance with MIL-“3171. 3.1.5 Cadmium surfaces. Cadmium surfaces shall be cleaned
37、in accordance with QQ-P-416, followed immediately by treatment as specified in 3.2.1. 3.1.6 Wood surfaces. Wood surfaces to be painted shal dirt, oil, grease, and other foreign substances with an a sol vent, for exampl e, mineral spi ri ts. 1 1 3.1.7 Cleanliness. After cleaning, all surfaces shall d
38、ust, finger marks, and other contaminants until treated a be dry and cleaned of al 1 iphatic hydrocarbon be kept free from dirt, S specified in 3.2. 3.2 Treatment. 3.2.1 Ferrous metal, zinc or cadmium surfaces. Ferrous metal and zinc or cadmium surfaces shall be treated as soon as possible after cle
39、aning as specified in 3.1 as fol 1 ows : a. With an organic wash pretreatment conforming to DOD-P-15328 or b. With a zinc phosphate chemical conversion coating in accordance with TT-C- MIL-C-8514; or, 490, type I. Any evidence of rust or contamination on a previously cleaned surface shall be cause f
40、or recleaning prior to pretreating. 3.2.2 Aluminum surfaces. Aluminum surfaces shall be treated as soon as possible after cleaning as specified in 3.1 as follows: a. With an organic wash pretreatment conforming to DOD-P-15328 or b. In accordance with MIL-A-8625 or MIL-C-5541. MIL-C-8514; or, Any evi
41、dence of corrosion or contamination on a previously cleaned surface shall be cause for recleaning prior to pretreating. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-704K 3.2.3 Maqnesium alloy surfaces. Prior to painting, magnesium alloy su
42、rfaces shall be treated in accordance with MIL-“3171, type I or III. Treated surfaces that become scratched in hand1 ing shall be touched up in accordance with MIL-M-3171, type I. 3.2.4 Wood surfaces. Unless otherwise specified (see 6.2), wood shall be pressure-treated and marked in conformance with
43、 AWPB LP-2 for above-ground7 or AWPB LP-22 for ground-contact installations, except that only ammoniacal copper arsenate, ACA, chromated copper arsenate, CCA, or ammonical copper zinc arsenate (ACZA) preservatives shall be used for treatment. Wood shall be dried to the specified moisture content (se
44、e 6.2) appropriate for the size, species, and ultimate service conditions, but in no case greater than 20 percent. Wood which will be painted shall be sealed with a polyurethane-based wood sealer in accordance with the NSN bel ow. TYPE NSN SIZE VOC 1-component 8010-01-327-6479 5 gallon 1-component 8
45、010-01-327-6480 55 gallon 2.05 1 b/gal 2-component 8010-01-327-5190 10 gallon 2-component 8010-01-327-5189 110 gallon 5.1 lb/gal - 3.2.4.1 Surface aDDlication. When specified (see 6.2), for repainting, or when pressure-treated material is not available, wood having a moisture content less than 20 we
46、ight percent shall be treated with a water solution of 1.8 percent copper-8- quinolinolate (oxine copper), or 3.0 percent zinc as metal, in the form of zinc percent copper as metal in the form may be applied by brushing or naphthenate, as specified in MIL-B-2427, or 2.0 of copper naphthenate, except
47、 that the solution spraying if the item is too large for immersion 3.2.5 Hardware and hardware items. Hardware capscrews, washers, pins, springs, and grease f treated prior to assembly and painting if there and hardware items such as bolts, is no evidence of rust or corrosion. ittings are not to be
48、cleaned and 3.2.6 Corrosion-resistinq steel surfaces. Corrosion-resisting steel surfaces shall be cleaned as specified in 3.1 and then treated as fol lows unless the corrosion-resisting steel has already been passivated and has not been contaminated or depassivated by working, forming, or shaping th
49、e end item (this process is primarily a passivating treatment for corrosion-resisting steels and not a cleaning treatment): a. Degrease, as specified in MIL-S-5002. b. Immerse for 30 minutes in a solution containing 20 percent by volume of nitric acid (sp. gr. 1.42) and 2 percent by weight of sodium dichromate at 120 to 130 “F. c. Rinse in clean, hot water. d. Immerse for 1 hour in a solution containing 5 percent by weight of sodium e. Rinse in clean, hot water. dichromate, at 140 to
