Product Description: POWER SERIES AQUA SEAL, PAD SIZE: 6" X 8" X 1/8", COLOR: BLACK, VOLUME RESISTIVITY: 2.4 X 1015 CM, SEAL BACKING MATERIAL: MYLAR, DIELECTRIC STRENGTH: 500 VOLTS PER MINIMUM, DISSIPATION FACTOR: 298 AT 60 HZ/286 AT 1,000 HZ. FREE 2 YEAR RADWELL WARRANTY