Silicone Earplug has excellent heat resistance, cold resistance, ozone resistance, and atmospheric aging resistance. It has good insulation properties. However, the tensile strength is worse than that of ordinary rubber and it does not have oil resistance. Suitable for household appliances such as electric water heaters, irons, microwave ovens, etc. It is also suitable for a variety of supplies that come into contact with the human body, such as kettles, water dispensers, etc. Not recommended for most concentrated solvents, oils, concentrated acids and sodium hydroxide. The general temperature range is -55 ~ 250 ℃.