Insulating Glass Sealant, Two-Part Silicone

Tremco JS 562 Silicone Insulating Glass Sealant is a two-part, high modulus, silicone sealant.


  • JS 562 is intended to be used as a secondary silicone sealant in a dualsealed insulating glass unit
  • The primary seal typically being polyisobutylene mastic or product capable of providing the required vapor seal for the insulating glass unit
  • Equipment Consideration: The JS 562 base material utilizes similar dispensing equipment as other two-part sealants. Curing agent hoses must be a type to reduce MVT through the walls of the delivery hoses