Gasket Tape is composed of a closed-cell PVC material with a strong adhesive on the bottom and a smooth, durable Mylar top. Gasket tape offers the latest technology in construction to increase IIC value, reduce vibrations and squeaks. It's low density effectively reduces impact transmissions and helps isolate vibration through floors and walls. This increases IIC value and provides a quieter, more comfortable room. In addition our Gasket Tapes low thermal conductivity ensures that heat and AC are not lost through the studs, providing for greater energy efficiency.