NAVISTAR MPAPS G-6046-2016 Elastomeric Coatings.pdf
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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. 2016 by Navistar, Inc. JUNE 2016 Page 1 of 8 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS G-6046 Former Designation: TMS-6046 TITLE: Elastomeric Coatings CURRENT REV No.: 1606 DATE: June 2016 WRITTEN/EDITED BY: S. Brailey APPROVED BY: R. Goluch SUPERSEDES: Rev. 0906 June 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification ma
3、y 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、1.0 APPLICATION This specification applies to elastomeric coatings, generally polyurea, urethane and hybrids of those polymers. This specification may be applied to chemicals purchased to coat parts or parts coated by a supplier. 2.0 SCOPE This specification covers the qualification and processing,
5、quality, quality control and source approval, and packaging requirements of chemicals and finished parts. 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. 3.
6、0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 MPAPS P-9543 SAE J243 CFR Title 29, Part 1910 ASTM D
7、395 SAE J400 NAVISTAR Manufacturing Std. MS-D-13 ASTM D412 NAVISTAR Engineering Design Std A-16 ASTM D573 NAVISTAR MPAPS B-50 ASTM D624 MPAPS DT-12 ASTM D2137 MPAPS GT-31 ASTM D2240 MPAPS GT-Paint ASTM D4878 4.0 REQUIREMENTS This specification is not intended to limit or to specify the exact process
8、es and/or materials to be used in providing finished parts. The control of the primer quality and its application are the responsibility of the supplier. All finished coated parts shall be compatible with all subsequent NAVISTAR operations. NUMBER: MPAPS G-6046 TITLE: Elastomeric Coatings REVISION:
9、1606 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. 2016 by Navistar, Inc. JUNE 2016 Page 2 of 8 4.1 Qualification of Coatings 4.1.1 Material/Process Ap
10、provals The coatings and pre-treatments used by the supplier must be approved by Materials Engineering prior to their first use in production. In addition, parts coated with the materials and applications processes/methods to be used by the supplier shall be approved by Materials Engineering and, af
11、ter approval, no deviation in materials and/or manufacturing processes are permitted without approval by Materials Engineering. 4.1.2 Material The initial qualification tests of paint shall be performed on parts formed from the same material and by the same process in which the finished parts are sp
12、ecified. These panels shall be coated with the materials to be tested using the procedure listed below. In cases where a primer is specified in addition to the topcoat, the panels shall contain both coatings applied by the intended production process. These panels shall be submitted to Materials Eng
13、ineering for approval with the vendors test results. Final qualification shall be performed on the finished part prior to production release. 4.1.3 Sample Preparation 4.1.3.1 A minimum of three (3) parts shall be submitted for qualification for each test. 4.1.3.2 Prior to coating, the samples shall
14、be cleaned with solvents or cleaners as necessary. This operation shall simulate production procedure. 4.1.3.3 The primer, if applicable, shall be applied to a minimum dry film thickness per the manufacturers recommended process. 4.1.3.4 The coated samples shall be cured by means which simulate prod
15、uction procedures. 4.2 Testing Finish painted parts, primed or unprimed, when coated with approved materials will meet the applicable requirements listed in Table 1. 4.2.1 Coatings used in flooring applications will meet the requirements listed in the table below in addition to Table 1. Test Test Me
16、thod Requirements Accelerated Weathering MPAPS GT-31 Method E Expose separate sets of samples to 100 and 500 hours continuous QUV-A light at 40C No color change greater than E of 3, plasticizer migration, delamination, or tackiness after 100 hours exposure. Report 500 hour results. Flammability FMVS
17、S 302 Meet the requirements of the latest issue Coefficient of Friction ASTM D2047 0.8 minimum Hardness (5 points) ASTM D2240 Type A 5 Tensile Strength (MPa) ASTM D412, Die C 5 minimum Low Temperature Resistance ASTM D2137, Method A Non-brittle at -40C (-40F) Pass Tear Resistance (kN/m) ASTM D624, D
18、ie B 15 minimum Heat Resistance ASTM D573, 70 hrs at 70C Hardness ASTM D2240 Type A 10 (max. % change) Tensile Strength ASTM D412, Die C 30 (max. % change) Tear Resistance ASTM D412, Die C -50 (max. % change) Mandrel Flexibility Test ” mandrel Pass 4.3 Material Properties Table 2 lists the required
19、cured material properties. NUMBER: MPAPS G-6046 TITLE: Elastomeric Coatings REVISION: 1606 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. 2016 by Navist
20、ar, Inc. JUNE 2016 Page 3 of 8 4.4 Chemical Properties Table 3 lists the as-received chemical properties of the raw materials. This is only applicable to material received in this state by a using Navistar facility. 4.5 Processing Finished painted production parts shall be produced by the same metho
21、ds used on the qualification samples. Changes in processing must be approved by Materials Engineering. 5.0 QUALITY Painted parts shall be adherent and uniform in color and texture, with no thin spots, runs, wrinkles, porosity, pits, blisters or nodules. Material supplied shall be free from objection
22、able odor, be of uniform quality, and shall match performance properties of pre-production approved material. Pre-production samples of material sufficient for complete test and evaluation should be submitted to Materials Engineering for approval 5.1 Porosity In instances where porosity is not detec
23、table until after the primed substrate has been painted, isolated cases of porosity as defined in Table 4 shall not be cause for rejection. Porosity that is chronic and requires significant amounts of rework shall be cause for rejection and it is the responsibility of the supplier to correct this co
24、ndition. The supplier has the responsibility to provide quality primed parts which will not cause delayed defects after finishing in the using plant. This condition will require close cooperation with the paint facility and with Materials Engineering. 5.2 Appearance Requirements Specific appearance
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