CUSTOM ITEM: Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Natural PTFE Septa, fitted in smooth, polyethylene, Black Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. BASIK Brand. BULK PRICING.

Additional Info:

Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining consistent autosampler performance. The silicone/PTFE septa combination delivers dependable sealing and chemical resistance for routine analytical workflows.

The 9502C‑E‑15K BASIK Snap Caps feature 0.04" thick natural PTFE bonded to silicone rubber, providing durability for repeated needle penetrations and consistent resealing. Natural PTFE is highly pure and contains no dyes, minimizing the risk of extractables and background interference in sensitive applications.

As part of the BASIK product line, these caps represent one of the most economical Silicone/PTFE snap cap options available, making them ideal for high‑volume laboratories seeking reliable performance at lower cost. The black polyethylene cap is well suited for light‑sensitive samples while also supporting organized workflows.


Key Features & Benefits

  • Natural PTFE septa ✅ Highly pure with no dyes

  • Silicone/PTFE construction ✅ Reliable sealing and resealing capability

  • 0.04" thick septa ✅ Durable for repeated injections

  • Economical BASIK line ✅ Cost-effective for routine use

  • Snap-top closure ✅ Fast, press-fit sealing without threading

  • Black cap format ✅ Ideal for light-sensitive samples


Typical Applications

  • HPLC and UHPLC analysis

  • LC‑MS workflows

  • Routine analytical laboratories

  • Light-sensitive sample handling

  • High‑volume sample preparation


Important Notes

  • For 11 mm, 12 × 32 mm snap top autosampler vials only

  • Suitable for multiple injections

  • Natural PTFE minimizes risk of extractables from dyes

  • Designed as an economical option for routine workflows

  • This and other custom items are Custom Ordered and require quotation


Additional Resources


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