Caps, Screw Top, Solid, with Blue PTFE / EPDM Rubber / Blue PTFE Liner, fitted in knurled polypropylene, White Caps. For use with 24-400mm threaded EPA Style vials. ND24 threads. MICROSOLV Brand. 100/PK.
Additional Info:
Provide durable, chemically resistant sealing for EPA style vials with solid top screw caps designed for long‑term storage and transport applications. Constructed from knurled polypropylene, these caps offer reliable grip and ease of handling in laboratory environments while maintaining consistent sealing performance. The solid top design eliminates any center opening, ensuring secure containment for sensitive or volatile samples.
97040-11C-S caps feature a 2.0 mm thick PTFE / EPDM / PTFE trilayer liner with a 65 Shore A hardness, delivering a firm and resilient compression seal. The PTFE outer layers provide excellent chemical inertness, minimizing interaction with stored samples, while the EPDM core enhances elasticity and sealing strength. EPDM is an M‑Class elastomer (ASTM D‑1418) composed of ethylene, propylene, and a diene monomer, providing excellent resistance to aging, oxidation, and environmental exposure. This liner combination makes these caps well suited for demanding storage conditions and a broad range of chemicals.
These caps are compatible with 30 mL, 40 mL, and 60 mL EPA style vials using ND24 (24‑400) threads. Their solid, non‑penetrable design makes them ideal for applications where injection access is not required, ensuring secure sealing during storage or transport.
Key Benefits
Solid top design provides secure, leak‑resistant sealing
PTFE / EPDM / PTFE liner enhances chemical resistance and durability
65 Shore A hardness provides strong, resilient sealing
EPDM core improves elasticity and long‑term performance
PTFE outer layers minimize analyte interaction
Knurled cap design improves grip and handling
Compatible with multiple EPA vial sizes (30, 40, 60 mL)
Typical Applications
EPA and environmental sample storage
Sample transport and containment
Chemical and reagent storage
Long‑term laboratory storage applications
Storage of reactive or sensitive compounds
Specifications
Cap Type: Screw Top (Solid)
Thread Size: ND24 (24‑400)
Cap Material: Polypropylene (knurled, white)
Liner: Blue PTFE / EPDM rubber / blue PTFE
Liner Thickness: 2.0 mm
Hardness: 65 Shore A
Opening: None (solid top)
Pack Size: 100 caps
Compatibility
Designed for ND24 (24‑400) EPA style vials
Compatible with 30 mL, 40 mL, and 60 mL EPA vials
Suitable for storage and transport applications
Performance and Design Notes
Trilayer liner improves sealing strength and chemical resistance
PTFE layers reduce sample interaction and contamination risk
EPDM core enhances flexibility and long‑term sealing reliability
Designed for secure containment in demanding environments
Important Notes
Not intended for autosampler injection (no center hole)
Designed specifically for storage and transport use
Ideal for applications requiring durable, chemically resistant sealing