Silicone Sealant Production Trial

Recently, a group of foreign customers came to JCT's factory to learn how to make silicone sealant, and saw how high quality the JCT 5L double planetary mixer is! We made neutral silicone sealant and acidic silicone sealant.

Mixing Raw Materials
• High Shear Mixing: Use a double planetary mixer to mix the raw materials. 107 glue, crosslinker, and catalyst are the main mixtures, which need to be efficiently stirred in the mixer to ensure that all ingredients are evenly distributed.
• Temperature Control: Some raw materials may need to be mixed with temperature control when added.

Vacuum Degassing
After mixing, use a vacuum degasser to degas the mixture. By extracting air from the mixture, remove bubbles from the rubber.
Degassing can prevent the generation of bubbles during the curing process, which can improve the density and appearance quality of the product. Generally, a vacuum chamber is used to reduce the air pressure of the mixture and promote the escape of bubbles from the colloid.