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1、I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Paint I UV STABILIZER COATINGS FOR LIGHTING APPLICATIONS 9984266 1 SCOPE. This specification covers the requirements for UV stabilizer coatings to be used for first surface applications on UV and heat sensitive plastics. 1.1 UV stabi
2、lizer coatings are part of a total painted product system and must meet the requirements set forth in this speci- fication and those shown on engineering drawings. This specification shall be used in conjunction with the Approved Paint on Plastics Systems (APOPS), a section of Materials Specificatio
3、n File (MATSPC) which lists approved substrate, cleaning, priming, and topcoat combinations. 2 REFERENCED STANDARDS. GMlOOOM GM446SP GM4348M GM9071P GM43SOM GM912SP GM4389M GM9163P GM9SOSP GM9509P SAE JS76 3 REQUIREMENTS. 3.1 RESTRICTED AND REPORTABLE CHEMICALS (GMlOOOM). By 1997 start of saleable v
4、ehicles, all materials supplied to this specification must comply with the require- ments listed in GMlOOOM, “Restricted and Reportable Chemicals.” 3.2 SURFACE PREPARATION. The surface must be clean and free of surface defects which would affect photometric performance or appearance. 3.3 CURE. Surfa
5、ce of part must be within the range of time and temperature specified by the supplier for cure and must be checked per GM9509P or as specified by supplier. Time in oven and ambient temperature must be regulated to meet this requirement without exceeding over/under bake specifications. 3.4 APPEARANCE
6、. Must meet the requirement of GM4348M with the exception of gloss and DGI which shall be specified on the part drawing. 3.5 PERFORMANCE. Finished lens must meet the require- ments of GM446SP with no evidence of blistering or other appearance change at the end of 96 h followed by GM9071P with a mini
7、mum of 99% retention. Additionally, the finished lens must meet the requirements of GM9SOSP (cycle A) and 24 h of humidity (GM446SP) followed by GM9071P with a minimum of 99% retention. 3.6 APPROVAL. When testing is satisfactorily completed per the above requirements, approval to this specification
8、will be given. The UV stabilizer coatings per this specification must be evaluated and approved for each specific lamp design. 3.7 APOPS. For specific system approval refer to the Qualification Procedure Section in the APOPS. 4 SOURCE SHIPMENT RESPONSIBILITY. It will be the responsibility of the sup
9、plier to insure that the material is not exposed to temperatures during shipment which would cause the material to fail to meet any of the require- ments of this specification. 5 INITIAL SOURCE APPROVAL. No shipment shall be made by any supplier until representative initial production samples have b
10、een approved by engineering as meeting the requirements of this specification. 5.1 Completed copies of the Material Safety Data Sheet meeting GM information requirements must be submitted with any new submissions or whenever a composition change has occurred. 6 INSPECTION AND REJECTION. All shipment
11、s of material or parts under contract or purchase order manufac- tured to this specification shall be equivalent in every respect to the initial samples approved by engineering. There shall be no changes in either formulation or mamrfacturing processes permitted without prior notification and approv
12、al by engineer- ing. Lack of notification by the supplier constitutes grounds for rejection of any shipment. While samples may be taken from incoming shipments and checked for conformance to this specification, the supplier shall accept the responsibility for incoming shipments meeting this specific
13、ation without depen- dence upon purchaser s inspection. In addition the supplier shall be responsible for submitting a CERTIFICATE OF ANALYSIS with each batch of material arriving at a plant. This document shall be prepared and provide data in accord- ance with the requirements detailed in GM4389M.
14、7 APPROVED SOURCES. Engineering qualification of an approved source is required for this specification. Only sources listed in the GM Materials File under this specification number have been qualified by engineering as meeting the requirements of this specification. Sources are available through the
15、 on-line MATSPC System. 7.1 MATERIAL PERFORMANCE. For coating to be ini- tially approved as a source, samples must meet the requirements of SAE JS76, GM4348M. GM43SOM (Class AO), GM446SP (b, a), GM9SOSP (c, a), GM912SP (d), and GM9163P (d). (a) GM9071P min 99% retention I 96 h (c) Cycle A (d) to be
16、specified by Engineering 8 GENERAL INFORMATION. This standard was origi- nated by Inland Fisher Guide Anderson Operations in August 1993 and approved by the Paint Committee in January 1994. The latest revisions include: Rev Date Description A l/95 Revised 3.5, 7.1 APRIL 1995 PAGE 1 9984266 Copyright
17、 General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- - 9006379 0004828 T=lb 881 1 GENERAL MOTORS ENGINEERING STANDARDS 1 Mat
18、erials and Processes - Paint UV STABILIZER COATINGS FOR LLGH;ING APPLICATIONS 9984266 9984266 PAGE 2 APRIL 1995 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,-