1、This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. APRIL 2015 Page 1 of 14 NAVISTAR, INC. Material, Parts, and Process Specifications
2、 (MPAPS) NUMBER: MPAPS G-9009 Former Designation: TMS-9009 TITLE: Painting, Metal Parts CURRENT REV No.: 1504 DATE: APR. 2015 WRITTEN/EDITED BY: D. Daley APPROVED BY: K. Chapman SUPERSEDES: Rev. 1412 Dec. 2014 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification m
3、ay involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use.
4、 Change Notice: Corrected corrosion in Table 1A and Immersions in Table 1B. Editorial and clarification changes in sections 2, 4.6.1 and 9. 1.0 APPLICATION This specification outlines the requirements for primed and/or painted metal parts used in NAVISTAR trucks, parts, and components. For painting
5、of thermoplastic parts, see TMS-9008. For painting of FRP parts, see MPAPS G-9005. High temperature paint for exhaust components are covered by TMS-9015. 2.0 SCOPE This specification covers the general requirements, specific properties and performance requirements of painted metal parts, and is divi
6、ded into multiple classes. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 2.2 Finish Classification Class of finish of painted parts shall be specified on
7、the engineering drawing. Painted parts shall meet all requirements for the specified class as described herein. Paint covered by this specification should not be exposed to continuous service temperatures above 150C (see TMS-9015 for parts requiring high temperature paint, such as exhaust components
8、). 2.2.1 Class I For decorative exterior parts which require excellent corrosion resistance and appearance such as exterior portions of the cab and parts which mount to the cab. Class I parts are assumed to meet the Suffix A level requirements unless otherwise indicated. 2.2.2 Class II For decorativ
9、e and non-decorative exterior chassis or powertrain parts that require good corrosion resistance. Decorative parts would be specified as Class IIA. Non-decorative parts would be specified as Class IIB or IIP. Examples of non-decorative Class IIP parts that will be top coated are frame rails and cros
10、s members, fabricated brackets, clips, steering arms, pitman arms, torque rods, U-bolts, disc wheels, rims, rings, spacer bars, drag links, etc. Class IIB parts that are not topcoated are parts that shall not be exposed to direct ultraviolet radiation, such as underhood brackets and engine-mounted c
11、omponents. NUMBER: MPAPS G-9009 TITLE: Painting, Metal Parts REVISION: 1504 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. APRIL
12、2015 Page 2 of 14 2.2.3 Class III For decorative and non-decorative interior cab parts that require minimal corrosion resistance. Decorative interior cab parts are specified by adding the suffix A, which means part finish must meet corrosion resistance, as well as appearance performance requirements
13、 that include color match, gloss, and weathering/ultraviolet exposure. Decorative examples include visible parts. Non-decorative includes parts such as brake and clutch lever arms and mounting brackets. 2.3 Suffix Requirements Suffixes are described in several ways. “P” and “L” are used to modify pa
14、rt numbers as described below. “P” can also be used to modify the Class of paint described above as can the other letter designations. 2.3.1 Suffix P: When the ordered part number contains the suffix letter “P,“ it is to be supplied in the “Prime Only“ condition. The supplier is responsible to insur
15、e that the part meets the requirements for primed parts (Class 1P) as indicated in this specification. Example: Drawing P/N is 3811259C1, with TMS-9009, Class I, finish note on drawing; part number ordered to 3811259P1 should be supplied to the plant primed only, to be final painted at assembly. Thi
16、s designation can also be used as a modification to the material specification (e.g. Class IP). Note: Primed parts are generally not resistant to UV, so they shall not be stored outdoors or in sunlight prior to topcoat. 2.3.2 Suffix L: When the ordered part number contains the suffix letter “L,“ it
17、is to be supplied “less finish” (without painting). The using NAVISTAR plant is responsible to insure conformance to the engineering requirements of the finish class specified for that part. Example: P/N 3811259C1 would be ordered from the supplier as P/N 3811259L1 if supplier is not required to pro
18、vide a painted part. 2.3.3 Suffix A: When this modification is made to the below-described class, it indicates final part finish must meet corrosion resistance, as well as appearance performance requirements that include color match, gloss, and weathering/ultraviolet exposure. Example: Class IIA par
19、ts would be steps, modesty panels, exhaust stack supports, fuel tanks and straps. 2.3.3.1 Bumpers - Class IIA replaces TMS-9016 (Painting, Bumpers), though new bumper releases should be specified to Class IB. 2.3.4 Suffix B: This modification indicates slightly lower performance on a decorative part
20、 such as a bumper (IB). Class IIB replaces TMS-9009 Class II and Class IV. Class IIB and IIP are functionally interchangeable in many cases. IIB has minimal UV protection where IIP has effectively none. Both are usually recoated in chassis paint. IIB should be used when a part may not be recoated an
21、d IIP when a part will always be recoated. 2.3.5 Suffix C: For Class IIC this is a further performance reduction for parts that can corrode and are not cosmetically important such as castings, engines and engine attachments. This is not recommended for use and requires the Validation Director approv
22、al for use beyond these applications. Class IIC replaces TMS-9009 Class V, and TMS-9009 Class VI (casting sealer such as old CEMS G-5 Casting Sealer Grades -41, -43, and -43W, as examples) and CEMS G-5 Classes F and G. Class IC is common with Thermosetting acrylic paints (TSA) which have minimal ext
23、erior weathering but good corrosion performance. Typical applications include mounting brackets for exterior component mounting that does not get significant direct light exposure. Some glamor surfaces may be specified this way for specific requirements requiring a TSA paint. Class IIIC should not b
24、e used. NUMBER: MPAPS G-9009 TITLE: Painting, Metal Parts REVISION: 1504 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. APRIL 201
25、5 Page 3 of 14 2.3.6 Suffix E: This suffix requires that the prime system uses an approved chemical pretreatment with an electrodeposition or autodeposition type primer. See MPAPS G-5 Primer Grade -56 as an example. In general, these two systems can be used interchangeably, provided the other requir
26、ements can be met. In the rare instance that one or the other is required, then it shall be so noted on the print as E1 for electrodeposition and E2 for autodeposition. In some cases, primed parts may be used in applications that will not be further painted. In these cases, paint compatibility and a
27、ssociated testing may be waived. Please contact Materials Engineering for further guidance. 2.3.7 Suffix K: This requires a powder coat type paint system (rather than a liquid system). Powder and liquid paint systems can both meet this specification and usual requirements do not discriminate or requ
28、ire one or the other. In some cases, a powder system may be required and so designated by this suffix. All other specification requirements still apply. 2.3.8 Suffix S: This suffix indicates a critical structural joint and areas on the part will be designated for special paint film thickness control
29、 and requirements, as excessive paint can degrade such joints. In some cases, paint may need to be completely removed or masked from specific areas. This should be so designated on the controlling engineering print. 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenc
30、ed standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 ASTM D7396 CFR Title 29, Part 1910 NAVISTAR MPAPS G-5 NAVISTAR Manufacturing Std. MS-D-13 NAVISTAR MPAPS G-9557 NAVISTAR Engineering D
31、esign Std A-16 ASTM B 117 NAVISTAR MPAPS B-50 ASTM D 1729 The Society For Protective Coatings SSPC-VIS-2 SAE J400 NAVISTAR MPAPS GT-31 SAE J2334 NAVISTAR MPAPS P-9543 ASTM D6386 SAE J1545 ASTM D 1186 ASTM D1730 ASTM D3359 ASTM D3363 ASTM D523 All GT Standards (except GT-31 noted above) can be found
32、in MPAPS GT-Paint 4.0 GENERAL REQUIREMENTS Performance requirements for parts furnished to this specification are shown in Tables 1 and 2. Table 3 shows performance requirements for test panels (See Test Procedures). Test panel data shall be submitted at the time painted parts from new sources are s
33、ubmitted for approval. This specification is not intended to limit or specify the metal pretreatment or painting process, but please note that iron phosphate is not recommended for galvanized steel (or other zinc-coated) or zinc die-cast substrates. Liquid or powder coat systems, thermoset acrylic,
34、urethane, acrylics, etc., may be used providing that all requirements of this specification are met. If a chemical surface pretreatment is required, any process such as zinc phosphate or iron phosphate, acid wash prime or conversion coating which provides finished parts meeting the requirements of t
35、his specification may be approved. However, Navistar Materials Engineering must approve systems from new vendors or deviations to this specification or changes in currently approved systems. 4.1 Finish All parts, whether painted by Navistar or purchased, will be finished with paints which meet all d
36、ry film requirements of this specification or MPAPS G-5 as appropriate. Finish quality requirements are NUMBER: MPAPS G-9009 TITLE: Painting, Metal Parts REVISION: 1504 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical St
37、andards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. APRIL 2015 Page 4 of 14 detailed in specification MPAPS G-9557. Mating or contact surfaces of finished parts must be free of all paint defects or other defects which might prevent properly fastened joints from bei
38、ng achieved in assembly or retained in service. Also, threaded sections of parts or assemblies shall be protected from excessive paint buildup to insure proper assembly. The MPAPS G-5 equivalents are listed below. When Dry Film requirements are in conflict, the G-5 requirements shall prevail for pur
39、chased liquid paint and G-9009 for purchased painted components. MPAPS G-9009 MPAPS G-5 TMS-9009 Class IA Grade 18 Class I Class IB Grade 17HS Class IC Grade 19HS Class IP, IPE, IPE1 Grade 56 Class IP Class IIA Grade 32HS/Ur Class IIA Class IIB Grade 32W Classes II, IV Class IIC Grade 81W Classes V,
40、 VI, VIA Class IIK Grade 20 Class IIP, IIPE, IIPE2 Grade 57 Class IIIA Grades 29, 29T, 29HS, 29THS Class IIIA Class IIIB Class III 4.2 Compatibility Classes I and II finishes are often recoated during vehicle assembly. These coatings and those supplied in prime shall be compatible with the appropria
41、te production paint system as detailed in MPAPS G-5. See Section 4.7 for test requirements to determine compatibility. 4.3 Primed Parts (Suffix Letter “P“ located in order part number) Class I parts which are supplied to the using plant in a primed state (ordered with P part number) shall also meet
42、the requirements for Class 1P marked with No. (1) in Tables I and II. The prime paint shall be approved by Materials Engineering. 4.4 Film Thickness for Steel Wheels, Rims, Rings, Spacer Bands and other Structural Joints 4.4.1 Prime Finish Class IIPE1-S (Formerly Type P, TMS-9014) The film thickness
43、 must be between 0.6 mils and 1.4 mils in Designated Control Areas (Figure 1) or on the engineering print. The film thickness in non-designated control areas must be the minimum necessary to provide uniform total coverage and meet all the requirements of the specification. A maximum limit of 1.5 mil
44、s is allowed in non-designated control areas. Touch-up paint may be used only in non-designated control areas and must meet the appearance requirements of the specification. Total coverage is required. 4.4.2 Top Coat Finish Class IIAS (Formerly Type TK, TMS-9014) The topcoat film thickness must be a
45、 minimum of 1.7 mils and the total film thickness a maximum of 3.1 mils in Designated Control Areas (Figure 1 or as designated on the engineering print), and uniform total coverage (i.e., complete hiding of primer) must be achieved. The total film thickness in non-designated control areas must be a
46、minimum necessary to provide uniform total coverage (complete hiding of primer), but not less than 2.0 mils. A maximum of 3.5 mils is allowed in non-designated control areas, provided all other areas of the specification are met. Areas designated as relief areas should not be considered under the th
47、ickness requirements. Total coverage is not required, overspray is not required, however, overspray is acceptable in these areas. NUMBER: MPAPS G-9009 TITLE: Painting, Metal Parts REVISION: 1504 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission f
48、rom Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. APRIL 2015 Page 5 of 14 4.4.3 Powder Coat Finish Class IIA-KS (Formerly Type PK, TMS-9014) The powder coat thickness must be a minimum of 1.7 mils and a maximum total thickness of 3.5 mil
49、s in Designated Control Areas (Figure 1 or as designated on the engineering print) and uniform total coverage (i.e., complete hiding of primer, if used) must be achieved. The powder coat thickness in non-designated control areas must be a minimum necessary to provide uniform total coverage (if primer is used, it must be completely covered), but not less than 1.7 mils. A maximum total thickness of 5.0 mils is allowed in non-designated control areas, provided all other areas of the specif
