You should put the gel to the box following use and shop it inside of a awesome dry position. Use period after opening is about 3 months; Unopened expiration date is about 2 years.(Remember to Notice : The cleaning gel can not be cleaned. Do not wash it in h2o.) https://ordilendlaptopscreenkeybo55319.webdesign96.com/26790886/kit-keyboard-là-gì-fundamentals-explained