Where is the rubber gasket used on a sealer casket generally located?

• A. Between the inner lid and the outer shell
• B. On the exterior surface of the lid
• C. Between the base and the shell
• D. Between the rim flange and the top body molding flange

Answer: (D)

In a sealer casket, the rubber gasket is placed in the seam where the lid meets the body—specifically between the lid’s rim flange and the top body molding flange. This placement allows the gasket to be compressed when the lid is closed, creating an airtight seal at the closure line. Placing the gasket elsewhere wouldn’t provide the sealing contact at the lid-to-body interface that a sealer casket relies on.