Our 18-400 Silver Aluminum Screw Cap is a brushed aluminum cap. Above all, This is a great way to set your product apart and set an appealing look to your packaging. Continuous thread caps have a single thread on the inside of the skirt. However, these typically require a full turn before the closure is properly applied.
In conclusion, you can pair this silver aluminum screw cap with various Jars that match an 18-400 neck size. For instance, the first number represents the diameter of the container’s opening in (mm). The second number represents the thread depth of the closure’s skirt.
Types of Liners
In addition, These silver aluminum screw caps have a pre-inserted liner with an 18-400 neck size. Specifically, this lid includes a foam liner inside the cap. The liner creates an airtight seal when used properly on the container. Above all, this cap fits any of our 18-400 bottles. It is great to enclose products safely with its airtight seal. Products ranging from cosmetics to personal care products.
Polyethylene Foam Liner
This lid includes a PE foam liner inside the cap. In other words, A PE liner is a variety of polyethylene foam liners. For instance, it is commonly referred to as poly liners. It is a flexible plastic liner specifically designed to line the inside of a glass, metal, or plastic container. An ideal general-purpose liner material, the compressible PE foam creates a stable seal. In addition, PE liners are odor-resistant and pulp dust-free. They also have good chemical resistance to acids, alkalis, solvents, alcohols, oils, household cosmetics, and aqueous products. PE liners are not recommended for use with hydrocarbon solvents.
