At present, foamed silica gel is a large class of materials for battery pack casing sealing, but foamed silica gel with different cell structures will have different results when used for sealing: foamed silica gel with open cell structure cannot be used for waterproof sealing; mixed cell structure It can be used for waterproof sealing, but it cannot meet the moisture-proof sealing effect; the waterproof and moisture-proof sealing of closed-cell structure foamed silicone can achieve the desired effect under ideal conditions. Therefore, it is widely used to prepare a kind of closed-cell foamed silica gel for battery pack casing sealing or other waterproof and moisture-proof sealing.


About silicone foam, please check the details:
https://www.siliconefoam.net/product-soft-cellular-silicone-iota-ht-870-.html