Abstract: Composite seal or gasket for inhibiting the release of a volatile organic compound such as fuel. The seal includes a deformable portion interconnected to a vapor barrier portion via a mechanical or adhesive interlocking connection. The deformable portion can be formed from an elastomeric material. The vapor barrier portion can be formed from a wide variety of materials that inhibit permeation of the organic vapor. Examples of the materials for the vapor barrier include ductile metals, plastic polymers, and fluoroplastic polymers. The gaskets and seals can be, but are not restricted to be, used between the connections of the components in an automotive or consumer product fuel system.

Abstract: In general this invention relates to a composite seal or gasket for inhibiting the release of a volatile organic compound such as fuel. The composite seal assemblies (10, 70, 100, 130, 160, 180 and 200) include a deformable portion interconnected to a vapor barrier portion via a mechanical or adhesive interlocking connection. The deformable portion can be formed from an elastomeric material. The vapor barrier portion can be formed from a wide variety of materials that inhibit permeation of the organic vapor. Examples of the materials for the vapor barrier include ductile metals, plastic polymers, and fluoroplastic polymers. The gaskets and seals can, but are not restricted to, be used between the connections of the components in an automotive or consumer product fuel system.