VB-2 is a flexible, odorless and lightweight mineral filled vinyl-copolymer formulated to handle the demanding extremes of aircraft vibration and noise control. It has twice the damping and less than half the weight of asphalt damping materials and the ability to handle continuous temperatures to 250 degrees. For heavy duty damping requirements VB-2HD is the perfect material. At a mere .43 pounds per square foot VB-2HD out damps other materials that are up to 4 times heavier. How does it work? Both VB-2 & VB-2HD operate as visco-elastic dampers. By heavily loading silica and quartz into a flexible vinyl carrier VB-2 efficiently converts vibration energy into low level heat. The flexible nature of VB-2 enables it to mold and conform to irregular surfaces. This attribute allows VB-2 to make 100% surface contact with the vibrating structure, maximizing the total damping effect. The modified acrylic peel and stick adhesive will maintain an excellent bond at temperature in excess of 250 degrees F.