Foam and Adhesives used on upper case

I'm replacing the upper case on my MacBook Pro 15" mid 2012 A1286 and there is foam and a gold adhesive that I will need to add to the replacement upper. I've added a picture that captures the two parts I am referring to.

The foam is silver in color and located along where the display hinge would be; I'm fairly certain is made of metal.

The gold adhesive bonded a metal plate to the upper and is connected to an antenna wire that was located below the optical drive. This is in reference to the warning contained in step 36 of this instruction manual. MacBook Pro 15" Unibody Mid 2012 Upper Case Replacement

What are the materials used and suggestions on where to get it?