The typical composite materials can be made with fibers such as fiberglass carbon fiber graphite kevlar quartz and polyester.
Dense fibre matting.
That over 100kg has been proven over many years to be a great soundproofing insulation where bass noise is your major concern.
Very high density mineral wool i e.
The fibers come in veil mat short fibers mat woven cloth unidirectional tape biaxial cloth or triaxial cloth.
It is a preferred substrate under brick stone stucco siding and eifs due to its ability to protect a structure against incidental moisture during and after construction.
Matting doilies matting mat coir rope made exclusively from the heavy looms then cut up heavy and then cut up inside.
Fiberglass american english or fibreglass commonwealth english is a common type of fiber reinforced plastic using glass fiber.
The fibers may be randomly arranged flattened into a sheet called a chopped strand mat or woven into a fabric.
The high density is very good for reducing the passage of sound however it is very rigid compared to other acoustic mineral wools.