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TruSeal: Insulating Glass Sealant
TruSeal Technologies, Inc. has introduced the second product in its new family of hot-melt butyl and polyisobutylene (PIB) IG sealants. Named EdgeTherm, the new product family features high-performance, gun grade IG sealants for manufacturing flexibility. The second rollout in the EdgeTherm line is PIB-H1, a high viscosity, high strength, 100 percent solids sealant system. The product is based on a PIB polymer formulated to impart reinforcement, resist degradation from ultraviolet light and provide low moisture permeability. With its high viscosity formula, PIB-H1 resists shearing in large, heavy lites of glass, and retains flexibility though a wide temperature range to compensate for thermal movement of IG units. EdgeTherm PIB-H1 is used as the primary seal on IG units while providing the main moisture vapor seal between the glass and metal saucer. It must be used with a secondary seal designed to provide structural strength. The product's properties provide a low moisture vapor transmission rate, consistent quality and excellent adhesion to glass and metal through a wide temperature range. PIB-H1 also provides easy application and handling of coated spacer bars and resists degradation from ultraviolet light and oxidation.
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