Does the condensation type 10:1 sealing adhesive cause abnormal power outage performance?
Mar 15,2024 Hanast
After curing, small molecules are generated in the condensation-type potting adhesive, which can affect the electrical performance of the product; Mainly manifested in:
A. After solidification, there is an induced voltage between the shell and the positive and negative poles of the power supply. The initial voltage is relatively high, exceeding 12V, and it recovers to below 1V after about 6 hours.
B. Within 2 days of curing, there may be situations where the lights do not turn on; (After solidification, there will be a trace amount of ethanol molecules produced, which can be completely removed in about 2 days)
C. Uneven mixing can also affect electrical performance. After curing, it is necessary to extend the contact time between silicone and air as much as possible or use a rapid curing agent to accelerate the extraction rate of ethanol molecules, and the voltage should be reduced to normal requirements within 6 hours; Increasing the amount of curing agent used can shorten the curing time and accelerate the extraction rate of small molecules; Additionally, using additive products can solve this problem.