Provides precise and even contact, filling air gaps, Made of Non-Toxic material Transfers heat away from VGA Card, RAM, and Notebook PC Components Lasts for years, remaining flexible, guaranteed not to harden or corrode Operating Temp: -40C to 200C, Hardness: 45 Shore 00, Specific Gravity: 3.14g/cm3 Thermal Conductivity: 13W/mK (Non-Electrically Conductive)