Bohning's Insert Iron is designed for inserts, points, and outserts. It works on all shaft types - carbon, aluminum, fiberglass, and wood. Insert Iron is our strongest glue and it is NOT reversible. Cure time is 48 hours (72 hours if air is dry during application). Do NOT store Insert Iron in the refrigerator. To prevent it from drying out prematurely, ensure cap & tip are tightly sealed. For added protection, place Insert Iron bottle inside plastic bag or container. One year expiration on unopened bottles.