Air Tight Packing of Key True

Air tight packing of Key True. About their feature:

1. Working temperature:

    -40℃ to 300℃ or -65℉ to 572℉

    Minus 40 degrees Celsius to 300 degrees Celsius

    Minus 65 degrees Fahrenheit to 572 degrees Fahrenheit

2. Temperature resistant:

    Basic degree: 180 degrees Celsius to 200 degrees Celsius

    Highest degree: 250 degrees Celsius to 300 degrees Celsius 

3. Size tolerance of silicone Door Gasket:

    + / - 0. 2mm

4. Material of Air Tight Packing:

    100 % silicone rubber

Getting more info from their website.

http://www.taiwantrade.com.tw/EP/keytrue/products-list/en_US/178884/04_Air_Tight_Packing/