Potting silicone for PCB products : packaging, storage and transportation: 1. electronic potting silicon: is vacuuming packed with 20kg/drum A. 2kg/drum B. 2. electronic potting silicon: should be stored in a cool dry place, avoid the sun and rain, it must be kept away from acids, alkalis, salts and other compounds. 3. electronic potting silicon:, shelf life is one year from the date of production