Abstract: A visco-elastic material useful in forming a noise and vibration damper, which includes an ethylene/methyl acrylate and/or polyacrylic elastomer, one or more modifying agents and one or more thermally-activated crosslinking agents. The material imparts excellent noise and vibration damping properties over a wide range of temperatures, and is particularly useful for damping vibrating substrates at elevated temperatures. In addition, the material can be polymerized or cured in-situ by heat generating substrates and has self-adhesive characteristics. Furthermore, the damping properties, adhesive qualities and structural integrity of the material are relatively unaffected by prolonged exposure to elevated temperatures and/or hot motor oil.