Damping compounds, like Green Glue Noiseproofing Compound, are relatively recent advancements in the sound isolation market. Green Glue Soundproofing Compound is a material that is applied between two layers of solid non-porous material, typically drywall or wood, in walls, ceilings, floors, isolation boxes, window plugs, and doors.
Green Glue Compound is most often applied from tubes, instead of pails, in smaller projects that might be done in phases and to help track of the amount of Green Glue Compound applied on a project.