Sound Proofing / Insulation: Service and Repair

Replacing Seals

As paint oven temperatures used in a repair workshop are significantly lower than those that are used during manufacture of the vehicle, a different process is required to replace the seals in service. When replacing a seal, the following procedure must be followed.

After a repair that involves replacement of a section containing expanded foam, the new section must be injected with an approved sound dampening foam. The sound dampening foam should be injected after paint refinishing and application of cavity wax.

Accessible cavities that must be injected with sound dampening foam are detailed in the following Figures. When injecting the foam, ensure the foam fills a complete cross section of the cavity.