Catalog Number - 9502C-E-30C-M

Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining reliable autosampler performance.

The 9502C‑E‑30C‑M Soft‑Guard™ Snap Caps combine pre‑slit septa design with advanced Soft‑Guard™ silicone formulation to optimize both needle penetration and resealing performance. The pre‑slit reduces resistance during injections, while the Soft‑Guard™ material enhances resealing compared to standard septa—helping reduce missed injections and extend instrument uptime.

Pre‑slit septa are commonly recommended for autosampler systems such as Waters® Alliance and Acquity, where consistent needle entry and reduced penetration force are critical for reliable performance.

The bonded PTFE/silicone septa provide excellent chemical resistance and protect sample integrity across HPLC and LC‑MS workflows. The natural (transparent) polyethylene cap allows clear visual inspection and alignment, offering added convenience for high‑throughput laboratories.

Key Features & Benefits

• Soft‑Guard™ pre‑slit septa ✅ Easier penetration with improved resealing

• Optimized for Waters® systems ✅ Reliable performance in Alliance & Acquity

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

• PTFE/silicone bonded septa ✅ Chemical resistance and sample protection

• Natural transparent cap ✅ Easy visibility and identification

• Fits 12 × 32 mm snap top vials ✅ Standard 11 mm compatibility

Typical Applications

• HPLC and UHPLC analysis

• LC‑MS workflows

• Waters® Alliance and Acquity systems

• High‑throughput analytical laboratories

Important Notes

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

• Suitable for multiple injections

• Pre‑slit septa reduces penetration resistance

• Soft‑Guard™ formulation improves resealing, consistency, and uptime

• Case quantity format (1000/CS)

Additional Resources

• View Standard Pack 9502C‑E‑30C Soft‑Guard™ Pre‑Slit Snap Caps (100/PK) for 11 mm Autosampler Vials

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