Insulation material

There is a material similar to glass fiber that I think is to protect the radiator from the engine temperature. This is worn in my car and I want to change it. But I can not find it on the internet.

You say my material on turbo, if you don't have a teacher, if you put a photo of my hood insulator, we can answer healthier.

I was wondering for the first time this kind of piece, I wonder what it is like?