Engine compartment Insulation

[OREddie]

Greetings,

We discovered rodent damage to the engine compartment liner kind of a tin foil looking thing) that's attached to the firewall and a portion beneath on our 2017 ('16 chassis) during the predelivery inspection.

Years of efforts to have it repaired by as promised by the dealer were fruitless.

Any ideas for a replacement or patch product? To emphasize, this is in the engine compartment. The damages is about 4 square feet.

Thank you!