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standard by General Motors Worldwide , 04/01/2025
Note: Nothing in this standard supercedes applicable laws and regulations.
Note: In the event of conflict between the English and domestic language, the English language shall take precedence.
Purpose/Material Description.
This specification describes the requirements of a two-component, rigid polyurethane foam material used as an acoustic baffle in enclosed areas such as A, B, and C pillars and engine compartment structures. It shall be capable of bonding to e-coated metal, be non-wicking and be compatible with all manufacturing processes.
This material is a two-component foam comprised of a 24:1 mixture (by volume) polymeric Methylene Diphenyl Diisocyante (MDI) prepolymer (GM Part Number 9986185) and a water/amine curative (GM Part Number 9986184).
Symbols.
Not applicable.
Applicability.
Foam material used as an acoustic baffle in enclosed areas such as A, B, and C pillars and engine compartment structures.
Remarks.
None.