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1、I 9006379 0003755 14b iSSi%l I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Adhesives I ADHESIVE, PRESSURE SENSITIVE 9965626 1 SCOPE. This specification describes the material and performance characteristics of a pressure sensitive adhesive used as a shipping and assembly aid to
2、hold molded silicone gaskets to engine covers. The product consists of a 10% (wt) silicone base adhesive in fluorocarbon solvent. It cures at room temperature with sufficient solvent evaporation 1.1 APPLICATION INFORMATION. Since the adhesive is a thin, water like liquid, it may be sprayed, brushed
3、or roll coated. The best method is the one that provides the most uni- form coating and suf6cient dry thickness in the quickest time frame. With the concentration at 10%. the product should be used as is, without further dilution. Application surfaces should be cleaned with a safety solvent mmx Ever
4、y lot by adhesive manufactnmr. Color, Viscosity, Odor, Tack; Four times per year by adhe- sive manufachner. 3.1: 3.2: 3.3: Every lot by adhesive manufacturer. Twice per shift by assembly operation. Once per model year by adhesive manufactnrer. 4 INITIAL SOURCE APPROVAL. No shipment shall be made by
5、any supplier until representative initial production samples have been approved by engineering as meeting the requimments of this specification. 4.1 Completed copies of the GM Material Safety Data Sheet and Critical Mate&l Begister (available from the engineering department or laboratory) must be su
6、bmitted with any new submissions or where a composition change has occurred. 5 INSPECTION AND REJECTION. All shipments of material or parts under contract or purchase order manufac- tured to this specification shall be quivalent in every respect to the iuitial samples approved by engineering. There
7、shall be no changes in either fomn&tion or manufacturing processes permitted without prior notification and approval 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 conformanc
8、e to this specification, the supplier shall accept the responsibility for incoming sbipments meeting this specification without depen- dena upon purchasers inspection. MARCH 1993 PAGE 1 9985626 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/111111
9、1001, User=Japan, IHS Not for Resale, 06/23/2008 20:37:32 MDTNo reproduction or networking permitted without license from IHS -,-,- m 9006379 000375b 082 1 GENERAL MOTORS ENGINEERING STANDARDS 1 Materlals and Processes - Adheslves ADHESIVE, PRESSURE SENSITIVE 9965626 6 APPROVED SOURCES. Engineering
10、qualification of an approved source is required for this specificatioti Only sources listed in the GM Corporate Materials File under this specification mmber have been qualified by the control divi- sion as meeting the requireme& of this specification. Sources are available through the on-line MATSF
11、42 System 7 GENERAL INFORMATION. This specification was originated by CPC in July 1987. The lastest revisious include: Rev Date Demxiption MV A l/93 Revise Specific Gravity, AD Editorial . 9965626 PAGE 2 MARCH 1993 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 20:37:32 MDTNo reproduction or networking permitted without license from IHS -,-,-
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