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2nd Edition, May 1, 2015

Complete Document

Sealer – Preformed, Floor Pan Patch

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Active, Most Current

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Product Details:

  • Revision: 2nd 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 (compound), which is applied to the Body Floor Pan. This material adheres to the Electrodeposition Primer (ELPO) paint layer on the Body to prevent water, dust or air intrusion.

Material Description. The material must be a smooth and homogenous mixture; free of air, lumps and foreign particles. Material must show no sign of trapped air from either an external observation or a sectional view before and after curing and must not be tacky. The material must not accelerate the rusting of the substrate over which it is applied.

Symbols. Not applicable. 

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


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 the specification, must be provided. Key Product Characteristics to include, at minimum; Initial Adhesion and Adhesion after Cycle Test. The Bake Chart is to reflect; Time at Metal Temperature on x-axis (minimum range: 0 minutes to 90 minutes) and Temperature on y-axis (minimum range: 130 °C to 200 °C). Additional direction to be provided by the approving material engineer. 

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