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1、m 7006377 0004859 LB bbT GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Paint I REDUCING SOLVENTS FOR PRIMERS 9984446 9984452 9984454 9984464 9984466 9984497 9984499 9984500 1 SCOPE. This specification covers the basic physical, chemical and performance requirements of reducers for
2、 use with various primer materials used on metal and plastic parts. The reducers are covered by specification numbers specific to the primer material with which they are used, described below. These reducers are used to adjust primer application viscosity, overall solvent evaporation for proper appl
3、ication, and film flow after application. The reducers may be individu- al solvents or blends of classes of solvents such as aromatic hydrocarbons, ketones and esters. Reducers approved under each specification are not interchangeable, and must be evaluated and approved for use with each specfic app
4、roved primer material before addition to the applicable approved source list. 1.1 The following primer reducers are covered by this specification: 9984446 - Reducer For 9981207 Lacquer Sealer 9984452 - Reducer For 9984068 Primer Surfacer 9984454 - Reducer For 9984059 In-Line Repair Primer 9984464 -
5、Reducer For 9984058 Final Line Repair Primer 9984466 - Reducer For 99848 16 Flexible Primer 9984497 - Reducer For 9984820 and 9984821 Primers 9984499 - Reducer For 9984076 Spotting Primer 9984500 - Reducer For 9984067 Primer Surfacer 2 REFERENCED STANDARDS. ASTM D56 9984103 ASTM D1012 9984470 ASTM D
6、1078 9984472 ASTM D1298 9984481 9984065 9984506 3 REQUIREMENTS. Materials submitted for qualiiica- tion to this specification must meet all the physical, chemical, and performance requirements. 3.1 Physical Requirements. This specification covers indi- vidual solvents or blends of solvents having a
7、wide range of physical properties. Upon submission, therefore, the follow- ing physical properties shall be provided for each reducer and shall form the specification requirements for all subsequent lots. 3.1.1 Following data shall be provided for each approved product: 3.1.1.1 Distillation Range, C
8、 (ASTM D1078). Initial Boiling Point (Min.) 10% Boiling Point (Min.) 50% Boiling Point (Max.) End (Dry) Point (Max) 3.1.1.2 Flash Point, C (ASTM D56). 3.1.1.3 Specific Gravity at 25C (ASTM D1298). 3.1.1.4 Aniline Point,C (ASTM D1012). 3.2 Chemical Requirements. 3.2.1 Identification. Gas chromatograp
9、hic and infrared analysis will be used to identify, characterize and qualify new materials for approval to this specification. All subsequent lots of the approved material must be compositionally identical to the initial samples submitted for qualification. 3.2.2 Purity. Minimum 99% purity by gas ch
10、romatographic assay. The material must be free of any suspended particles, corrosion products, undissolved water, silicones or any other materials detrimental to the painting process. Product must be essentially colorless and not impart any color to coating materials. 3.2.3 Odor. The odor of the mat
11、erial shall be reviewed in comparison with current production materials. Any signifi- cant change in the materials characteristic odor must be evaluated in a GM approved laboratory and production trial. Any change in formulation must be reassessed for effect on odor. 3.2.4 Hazardous Materials Docume
12、ntation. The supplier must provide all required safety documentation per Section 5 upon initial submission. Toxicity and flammability will be assessed by the using plants Hazardous Materials Committee to determine conditions for use. The supplier must comply with all governmental regulations regardi
13、ng proper labelling of hazardous materials. 3.2.5 Solvent Emissions Compliance. The supplier must furnish to the using plants Plant Engineering Department all information required to assess the effect of materials use on meeting governmental restrictions on the discharge of volatile organic compound
14、s (VOC) and disposal of hazardous waste. 3.3 Performance Requirements. The reducer shall be as- sessed and found satisfactory in plant trials with the intended approved primer material. Subsequently, the material must perform satisfactorily in the specified production application. Failure to do so s
15、hall constitute reason for rejection regard- less of compliance with the other requirements of this specification. 4 INITIAL SOURCE APPROVAL. No shipment shall be made by any supplier until representative initial production samples have been approved by engineering as meeting the requirements of thi
16、s specification. SEPTEMBER 1990 PAGE 1 9964446 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 21:33:03 MDTNo reproduction or networking permitted without license from IHS -,-,- II 7006379 0004
17、860 381 I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Paint I REDUCING SOLVENTS FbR PRIMERS 9984446 9984452 9984454 9984464 9984466 9984497 9984499 9984506 4.1 Completed copies of the GM Material safety Data Sheet, and Critical Material Register (available from the laboratory or
18、 engineering department) must be submitted with any new submissions or where a composition change has 0CCUl-d. 5 SOURCE SHIPMENT RESPONSIBILITY. It will be the responsibility of the supplier to ensure that the material is not exposed to temperatures during shipment which would cause the material to
19、fail to meet any of the requirements of this specification. 6 INSPECTION AND REJECTION. All shipments 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 chan
20、ges in either formulation or manufacturing procesxs permitted without prior notification and approval by engi- neering. 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 speci
21、fication, the supplier shall accept the responsibili- ty for incoming shipments meeting this specification without dependence upon purchasers inspection. 7 APPROVED SOURCES. Engineering qualitication of an approved source is required for this specification. Only sources Iistecl in the GM Materials F
22、ile under this specifica- tion number have been qualified as meeting the rquirements of this specification. Approved materials are not interchange- able and are released for use only in previously qualified combinations with other coating materials and processes. 8 GENERAL INFORMATION. These specifi
23、cations were approved by the Paint-Committee in March 1990. 9964446 PAGE 2 SEPTEMBER 1990 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 21:33:03 MDTNo reproduction or networking permitted without license from IHS -,-,-