IGU Silicone Sealant
This information reflects our best understanding of product composition in 2015.
Silicone sealants are used as a secondary seal in dual seal insulated glass units (IGU). Most commonly single component products that do not require mixing, these sealants are based on a "siloxane" chemical structure of silicone and...
Silicone sealants are used as a secondary seal in dual seal insulated glass units (IGU). Most commonly single component products that do not require mixing, these sealants are based on a "siloxane" chemical structure of silicone and oxygen bonds, that cure to form a hardened but still flexible seal. While the primary seal in the IGU serves to contain the insulating gas/air between the panes of glass, the secondary seal provides structural support, holding the IGU together as a unit.