NAVISTAR MPAPS G-7085-2016 Second Surface Decorative Finish - Plastics.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 5 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS G-7085 Former Designation: TMS-7085 TITLE: Second Surface Decorative Finish - Plastics CURRENT REV No.: 1606 DATE: June 2016 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. F August 2005 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION Th
3、is specification may 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 li
4、mits prior to use. 1.0 APPLICATION This specification covers vacuum metallized or painted bright decorative finishes applied to the second surface (the reverse side or second visible surface) of a clear plastic. This process may be used on interior or exterior applications such as light bezels, horn
5、 buttons, product graphics and similar applications. 2.0 SCOPE This specification covers the processing, finish requirements, performance requirements, and quality. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must compl
6、y with the requirements of the MPAPS B-50 specification 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-1
7、6949 CFR Title 29, Part 1910 NAVISTAR Manufacturing Std. MS-D-13 NAVISTAR Engineering Design Std A-16 NAVISTAR MPAPS B-50 ASTM B 117 NAVISTAR MPAPS G-9008 NAVISTAR MPAPS D-7051 MPAPS GT-31 4.0 PROCESS AND PERFORMANCE 4.1 Vacuum Metallized Process 4.1.1 A clear, resinous base coat applied to the clea
8、ned and dried significant (second) surface by spraying, flowing, or dipping, and then baking. 4.1.2 A bright, thin metallic film deposited in a vacuum from the vaporization of a metal such as aluminum, chromium, copper, gold or silver. 4.1.3 A baked, pigmented, protective top coat. 4.2 Painted/Coate
9、d Shall conform to the requirements of MPAPS G-9008. NUMBER: MPAPS G-7085 TITLE: Second Surface Decorative Finish - Plastics REVISION: 1606 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are requir
10、ed to assume all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 2 of 5 4.2.1 Coating Quality Coating shall be smooth and adherent. No runs, sags, blisters, wrinkles or skips shall be permitted. 4.3 Electroplated Chrome plated plastic components shall conform to the requirements of MPAPS D-7
11、051. 4.4 Finish Requirements Coating shall be of uniform color and brightness which is free from shadows or color fringes on the significant visible surface. The appearance shall be match the prototype parts approved by the Navistar Industrial Design Department. 4.5 Component Performance Requirement
12、s Each applied layer to the polymeric lens must pass the following tests: 4.5.1 Adhesion Apply a strip of adhesive tape (#710 Scotch Tape - 3M Company) 1.9 cm (3/4 in) wide to the coated surface. Pull tape at 90 to the surface. 4.5.1.1 Required Coating shall not adhere to tape. 4.5.2 Accelerated Wea
13、thering Interior parts, per Method A of MPAPS GT-31, 1200 kj minimum exposure. Exterior parts, per Method B of MPAPS GT-31, 3600 kj minimum exposure. 4.5.2.1 Required No deterioration or color change greater than E of 3 of coating. 4.6 Assembly Durability Finished parts (normally composed of an acry
14、lic insert with second surface decorative finishes, bonded into a metal or plastic bezel) must withstand the following indicated test procedures without exhibiting objectionable deleterious effects such as, but not limited to: Material embrittlement. Color change of plastic or applied finish. Surfac
15、e yellowing, chalking, crazing, cracking, distortion, gloss change, tackiness, hardness change. Loss of adhesion of applied finishes. Loss of adhesion of insert from bezel. Corroded appearance of electro-deposited, vacuum deposited, or sputtered metals. 4.6.1 Conditioning Assemblies will be conditio
16、ned for 7 days at 70C in an air-circulating oven. No change of color or appearance will be visible prior to the start of testing. 4.6.2 Cleanability Test Test the first surface by briskly rubbing for five seconds, using two fingers and moderate pressure, with a soft cotton cloth saturated with VM&P
17、naphtha. NUMBER: MPAPS G-7085 TITLE: Second Surface Decorative Finish - Plastics 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 N
18、avistar, Inc. JUNE 2016 Page 3 of 5 4.6.3 Moisture and Cold Cycle Test: Fifteen (15) cycles, each cycle consisting of: 24 hours humidity per ASTM D2247. 20 hours minimum at 23 2C. 4 hours at 23 2C. 4.6.4 Neutral Salt Spray Test: One hundred sixty-eight (168) hours exposure per ASTM B-117. 4.6.5 Ther
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