... Hardness :25-80 degrees Color: Any color could be Silicone Rubber Seal Strip:Size:0.5mm-120MMTemperature range: -50 °C -300 ... . Non-toxic, odorless, transparent, flame retardant, non-yellowing;2. Soft, flexible, kink resistance to deformation;3. Not cracking, long life, resistant ... electrical performance5. Various sizes, colors, durometer could be available Silicone Rubber Seal Strip