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9984194

4th Edition, May 1, 2015

Complete Document

Sealer – Preformed, Expandable and Fuel Resistant



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Active, Most Current

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Product Details:

  • Revision: 4th Edition, May 1, 2015
  • Published Date: May 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification details the performance requirements of a preformed sealer, which is fuel resistant and may expand, when processed though the Paint Shop Sealer/Primer Bake Oven. This material seals to the body, preventing water, dust or air intrusion.

Material Description. The sealer must adhere to Electrodeposition Primer (ELPO) coated metal. Expanding sealers are expected to meet either the High Back (Table 1, Types A or C) or Low Bake (Table 1, Types B or D) requirements. Non-expanding sealers are expected to meet both the High and Low Bake requirements shown in Table 1. Material must show no sign of trapped air from either an external observation or a sectional view, before and after curing.

Symbols. Not applicable.

Applicability. All vehicles. These sealers are manually installed in the Paint Shop, on the Sealer Line.

Remarks.

Technology Approval Documentation. At the conclusion of testing to this specification, the Supplier must provide a document package with the following:

Product Data. Documentation of all attributes and test results are required for the material, per Section 3 of this specification. All test panels should be identified and photographed for full documentation.

Bake Charts. A Bake window that identifies the Bake Conditions where the sealer meets and no longer meets all requirements of this specification, must be provided. Key Product Characteristics to include, at minimum; Volumetric Expansion and Initial Adhesion. The Bake Chart is to reflect; Time at Metal Temperature on x-axis (minimum range: 0 minutes to 90 minutes), Temperature on y-axis (minimum range: 130 °C to 200 °C). Additional direction to be provided by the approving Materials Engineer.

Additional information may be requested by the responsible GM Engineer, including Manufacturing site and trend charting for these attributes for (x) number of the initial production material batches.