Insert system, insert and panel assembly

An insert system (1) comprising:

• a. an insert (100) comprising
• i. a base (110) and
• ii. an outer skirt (120) extending from
• 1. the base (110), thereby forming a chamber (101),
• 2. the outer skirt (120) being provided with
• i. a first inner skirt surface (123) and a first outer skirt surface (124);
• and
• b. a panel (200) comprising
• i. a core structure (250) and
• ii. a first cover sheet (210) that at least partially covers the core structure (250);
• 1. the first cover sheet (210) defining a first outer panel surface (211) and
• 2. having an opening (212);
• and
• c. at least one piston (300) arranged as part of the panel (200) in the opening (212) and beneath the first outer panel surface (211), wherein the at least one piston (300) is offset from the first outer panel surface (211) in a vertical direction (z) by an offset distance (a);
• and
• d. wherein the at least one piston (300) during mounting of the insert (100) sweeps into the chamber (101) to discharge an adhesive agent (400) from the chamber (101) into the core structure (250) via at least one pathway (P1).