Catalog Number - 97018-SP

Provide durable, high‑performance sealing for storage applications with screw top caps designed for ND18 vial and bottle systems.

97018-SP caps are constructed from knurled polypropylene, offering enhanced grip and ease of handling in routine laboratory use. The solid cap design incorporates a butyl rubber / PTFE liner, delivering a robust sealing interface suitable for long‑term storage and chemically demanding environments.

The liner is 1.6 mm thick with a 55° Shore A hardness, providing a firm and resilient seal. Butyl rubber offers excellent gas and moisture barrier properties, while the PTFE layer ensures strong chemical resistance and inertness. This combination makes these caps well suited for securing volatile or reactive substances in storage conditions.

Key Benefits

• Solid cap design provides secure, non‑penetrable sealing

• Butyl rubber offers excellent barrier properties

• PTFE layer delivers chemical resistance and inertness

• 1.6 mm thick liner enhances durability and sealing strength

• 55° Shore A hardness ensures firm, reliable closure

• Knurled cap design improves grip and handling

• Compatible with standard ND18 (18‑400) thread systems

• Bulk pricing available for high‑volume use

Typical Applications

• General laboratory storage

• Chemical and reagent storage

• Volatile or moisture‑sensitive sample containment

• Storage bottles and vial closures

• Routine laboratory workflows

Specifications

• Cap Type: Screw Top (Solid)

• Thread Size: ND18 (18‑400)

• Cap Material: Polypropylene (knurled, black)

• Liner: Red butyl rubber / grey PTFE

• Liner Thickness: 1.6 mm

• Hardness: 55° Shore A

• Packaging: Bulk (Custom Item)

Compatibility

• Designed for ND18 (18‑400) threaded storage vials and bottles

• Compatible with a wide range of laboratory containers

• Suitable for storage applications requiring strong sealing

Performance and Design Notes

• Butyl rubber enhances sealing for gases and vapors

• PTFE layer minimizes interaction with stored materials

• Solid liner design provides consistent compression sealing

• Designed for long‑term storage reliability

Important Notes

• Custom item with bulk pricing available

• Intended for storage use (not for autosampler injection)

• Ideal for applications requiring strong sealing and barrier protection

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Custom Item Pricing Information

• Please contact Customer Service for formal quotation, lead time, and ordering assistance.

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