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Shelf Life Conditions: Unopened, factory sealed containers and cartridges in factory sealed foil pouches have a shelf life of 3 months from the date of shipment at room temperature 68°F to 77°F (20°C to 25°C) OR 12 months from the date of shipment when stored at 0°F to 38°F (-18°C to 3°C). The gel time of KEY Tough-Seal 21 becomes longer as the Aside component ages beyond 3 month at room temperature. While ultimate cure and properties are unaffected by the gel time extension, the cure rate is affected beyond 3 months age. Refrigerator or freezer storage can be used to preserve gel time. Storage above 90°F (32°C) is not recommended. Contact Key Polymer to discuss the supply chain management of Tough-Seal 21 in your operation. |