http://www.masterbond.com/sites/default/files/selector_guides/masterbond_cyanoacrylate.pdf MASTER BOND MB SERIES CYANOACRYLATES: Technical Data Sheet] User forums and some manufacturers say that an almost unlimited shelf life is attainable by storing unopened at -4.0 °F , the typical temperature of a domestic freezer, and allowing the contents to reach room temperature before use. [