Performance Requirements of Bonded Exterior Trim
|Publication Date:||1 October 2018|
Material Description. This specification defines the adhesion requirements of exterior trim that is tape attached to painted or non-painted substrates. These requirements also include weatherstrips and seals that are tape attached, and flexible or metallic inserts tape attached, and used as a decorative component of a molding, applique, fascia, or sill plate assembly. The adhesive system is typically a double-coated foam, or elastomeric tape.
This specification covers the laboratory test requirements for the Production Part Approval Process (PPAP) (see Appendix A, Table A1), and Routine Quality Control (see Appendix A, Table A2).
In addition to the tape/substrate combinations, approvals are also specific to the facility that laminates the tape to the part.
Symbols. Not applicable.
Applicability. This specification applies only to substrates, paint, adhesion promoters, and tape materials that have been qualified and approved to the appropriate GM specifications.
Double-coated foam or elastomeric tapes shall meet the requirements of GMW15201 for the appropriate tape type. Tape approvals to GMW15201 include adhesion testing to exterior topcoats.
The process and requirements for obtaining GM Approval for Adhesive Application Approval (AAA) has been removed from this specification. If it is required, GMW15625 will be added to the part drawing, or math data.