At present, the most commonly used sealants on the market are mainly two types, namely epoxy sealants and RTV SILICONE SEALANT (ACID). The characteristics are as follows:

Epoxy resin sealant
Features: Most are hard, but some are soft;
Advantages: good adhesion to hard materials, can not be opened after potting, high hardness, good insulation performance, ordinary temperature resistance is 100 degrees Celsius, temperature resistance of heating and curing is about 150 degrees Celsius, and temperature resistance is above 300 degrees Celsius of;
Disadvantages: The repairability of the product is not good.

RTV SILICONE SEALANT (ACID)
Features: It is a soft elastomer; it has good adhesion to metal, glass, ceramics and most engineering plastics.
Advantages: high and low temperature resistance, long-term use at 250 degrees Celsius, heating curing type has higher temperature resistance, better insulation performance than epoxy resin, withstand voltage above 10000V, moderate price, good repairability.

Precautions for use of RTV SILICONE SEALANT (ACID):
1. The surface of the sealed product needs to be kept dry and clean.
2. Take the amount according to the weight ratio and mix well and stir well to avoid incomplete curing.
3. Please use it in time after mixing evenly, and use the mixed glue within the operating time.
4. During the curing process, please keep the product horizontally placed to prevent the glue from overflowing during the curing process.