... sealants P.I.B. (Double sealing: Butyl used for the first sealing, Kommerling polysulfide rubber or silicon structural ... ) Characteristics Optical performanceVarious glass substrates can be used for Insulated glass to meet the request of sunlight transmission ... school, hospital, office building, airport, and hotel; also applied for refrigeration appliance, aircraft, ships, etc. Types of glass substrates ...