18-400 Black Phenolic Continuous Thread Cap - Polycone Lined

Polycone Lined Phenolic Cap for Chemical and Laboratory Containers

Ensure your liquid products stay secure with our 18-400 Black Continuous Thread Closure featuring a polyethylene (PE) polycone liner. Designed to deliver a superior leak-resistant seal, the cone-shaped liner molds to the container’s inner neck, preventing spills and preserving product integrity. Whether your packaging includes glass or plastic bottles — even with minor surface variations — this closure provides a dependable fit you can trust. Perfect for industries handling chemicals, pharmaceuticals, essential oils, and other sensitive liquids.

• Polycone liner provides an airtight, leak-resistant seal for liquid contents
• Compatible with glass and plastic bottles, even those with slight irregularities
• Ideal for chemical, pharmaceutical, and essential oil applications requiring secure containment
• Continuous thread design ensures simple, consistent tightening and removal
• Made in the USA for dependable quality and performance