Does the volume of two-component potting adhesive expand after 1:1 curing?

The expansion of added silicone after curing is caused by the lack of time to discharge bubbles introduced during the mixing process of A and B. Suggest vacuuming and vacuuming before gluing. When there is no vacuuming equipment, it is recommended to leave it for one to two hours after gluing and then heat and solidify it to alleviate the problem.