Mix silica gel in proportion, usually 100:3.
Vacuum silica gel, using vacuum extractor.
Fu culture Shi mold
Pour silica gel into a closed mold.
Waiting for the silica gel to cure, the curing agent with normal rate will take 3-4 hours at room temperature of 25℃, or it can be cured at 60℃ in less than 1 hour.
Demould that silica gel, standing for 24 hour, and putting into production.
If you have any other questions, you can go to Taobao, find hongye silicone and ask customer service. There are many teaching videos and CDs.