Which method of closure uses an epoxy compound with tongue and groove construction?

The method of closure that utilizes an epoxy compound with tongue and groove construction is the top seal. This type of closure is characterized by its ability to create a secure and airtight seal at the top of packaging or containers, often used to ensure product integrity and prevent leakage. The tongue and groove design allows for a precise fit between the mating parts, enhancing the effectiveness of the epoxy compound in providing a robust seal. This is particularly important in applications where maintaining the quality and freshness of the contents is critical. The combination of the epoxy material and the tongue and groove mechanism is instrumental in achieving a reliable and durable closure system.