System allows induction sealing for tamper-evidence, leak protection, and freshness. Inner seals are either placed onto the capless containers or reside in the “snap-on” cap as inserted by the cap manufacturer. For capless containers the belt holds the seals in place as the containers are conveyed through the induction sealing field. Capped containers are likewise captured from above by the pressure-belt. The belt applies pressure on the top of the cap forcing the cap to hold the inner seal in place during the sealing process. The system’s pressure-belt maintains contact with the seal or cap throughout the entire sealing process.