Rockboard 80 is rigid mineral wool board with a density of 8 pounds per cubic foot and is a great option for acoustic projects that require a rigid material. It’s also used in some bass trap designs.
For smaller quantities, try Roxul Rockboard 80 Single Pieces.
For more detailed information, see Selecting the Right Acoustic Material for a comparison of these materials.
We are quite happy with the reduction of echo in our room and the aesthetic improvements. The price was excellent and the material is easy to work with. - Andrae More reviews and photos...