Arlon 920 Mil-Spec rectangular tape is of uniform thickness and is ideal for applications where a smooth, even layer of tape is not required. They bond irreversibly to provide an insulative barrier that is resistant to moisture, oxygen, ozone and corona over a wide temperature range (-65 to 500 °F). Arlon STD silicone tapes provide superior electrical insulation with a dielectric strength of 300 VPM minimum at 356 °F. - Arlon 920 Mil-Spec rectangular fusible tapes are of uniform thickness from edge-to-edge. These fusible tapes are ideal for applications where a smooth, even layer of tape is not required. Dampens vibration and resists heat and mechanical shock as well as corona.