Green Glue Compound

What Is Green Glue Noiseproofing Compound?

Green Glue Noiseproofing Compound is a viscoelastic damping compound used to reduce vibration transfer in walls, ceilings, and floors. It is not an adhesive, but a soundproofing compound applied between rigid building materials like drywall, plywood, or cement board (HardiBacker). When used between two solid layers, it helps absorb and dissipate sound vibrations, making it one of the most effective soundproofing materials available for residential, commercial, and studio applications.

How Does Green Glue Noiseproofing Compound Work?

Green Glue works through a process called constrained layer damping (CLD). In this system, a thin layer of damping compound is sandwiched between two rigid panels, such as two layers of drywall. When sound waves cause the panels to vibrate, the viscoelastic compound inside the layer shears, stretching and compressing. This motion converts vibrational energy into tiny amounts of heat, which effectively eliminates noise transfer through the structure. Instead of merely blocking sound, Green Glue dissipates vibration energy, preventing it from traveling through walls, floors, or ceilings.

How Does Green Glue Compare to Other Soundproofing Methods?

When compared to other soundproofing products like mass loaded vinyl (MLV), soundboard, resilient channel, or joist tape, Green Glue Compound consistently delivers superior noise reduction performance. It’s one of the most cost-effective sound damping solutions for improving STC ratings and reducing structural vibration. For certain applications, such as ceiling isolation to reduce airborne or footfall noise, pairing Green Glue with resilient sound clips (like GenieClip® RST) provides even better results.