Tremco will debut its new sealant, EnerSeal JS680. The product is a one-component polyisobutylene-based primary sealant, specially developed for the manufacturing of insulating glass units. EnerSeal JS680 is a recommended sealant for use with rigid bar spacers such as stainless steel, aluminum and plastic/composite spacer systems. EnerSeal JS680 provides a barrier to moisture vapor ingress and gas loss as an IG primary sealant in the design of insulating glass units. Booth# 3207