Scarcity of Polysulfides Opens Door for Silicone Sealants

The news is particularly welcome at a time when the availability of polysulfide materials is uncertain, with one of the industry’s primary suppliers exiting the market last year. The higher-performing silicone replacements are expected to relieve supply concerns, reduce callbacks and trim warranty costs versus their organic counterparts. When fully cured, these silicone adhesive/sealants form a weather-resistant secondary IG seal for an insulating glass unit.