Raw acoustic boards are a widely used to create fabric wrapped acoustical panels. Our 6-7 pound per cubic foot acoustical fiberglass semi-ridgid insulation product is the standard in the industry. It has a white scrim facing on one side to help to keep true the fabric color you selected after it is installed on the panel. The 1" version has a NRC. 85 and the 2" version has a NRC 1.15. It is a Class A fire rated product.
Black Theater Board
Johns Manville Whispertone Wallboard