Should you remove a Glue Stick from a glue gun?
No, a partially used Glue Stick is usually best left inside the glue gun until you need it again. Attempting to remove the adhesive may interfere with the internal feed mechanism and could affect the performance of the tool.
If part of the Glue Stick extends beyond the back of the glue gun, it can be trimmed carefully. When the remaining Glue Stick becomes too short to feed properly, simply insert another Glue Stick and continue working as normal.