Silicone fusion tape is extruded from high performance silicone rubber & is self-adhering, self-fusing to eliminate special treatments. It cures into a solid rubber insulator at room temperature in 24 hours or less& forms an inseparable barrier that resists moisture penetration at temperatures up to 260C (500F). The high thermal conductivity of the tape allows for rapid heat dissipation for lower temperature rise in all types of electrical connections. The tape meets or exceeds the requirements of MIL CID-A-A-59163, Type ll 1-year shelf life