Jar cap seal

A jar cap seal refers to the mechanism or material used to create a tight and secure seal between the lid or cap of a jar and its rim, ensuring the contents inside remain fresh and protected from external contaminants. Here’s some information about jar cap seals:

Types of Seals: There are several types of seals commonly used for jar caps:

• Screw-on lids: These have threads on the inside of the cap that screw onto corresponding threads on the jar’s rim, creating a tight seal.
• Snap-on lids: These have a lip or ridge that snaps securely onto the rim of the jar.
• Rubber gaskets: Some jar lids incorporate a rubber or silicone gasket that forms a seal when pressed against the rim of the jar.
• Materials: Cap seals are typically made of materials that are flexible and resilient to provide an effective seal.

Common materials include:
• Rubber
• Silicone
• Foam
• Plastic (such as PVC or PE)
• Cork (less common, mainly for decorative or traditional purposes)