CUSTOM ITEM: Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Black Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. Soft-Guard Brand. BULK PRICING.
Additional Info:
Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining consistent autosampler performance.
The 9502C‑E‑30K Soft‑Guard™ Snap Caps combine pre‑slit septa with advanced Soft‑Guard™ silicone formulation to improve both needle penetration and resealing performance. The pre‑slit design reduces resistance during autosampler needle entry, while the Soft‑Guard™ material enhances resealing compared to standard septa—helping extend instrument uptime and reduce missed injections.
Pre‑slit septa are commonly recommended for systems such as Waters® Alliance and Acquity, where smooth and consistent needle entry is important for optimal performance.
The bonded PTFE/silicone septa provide strong chemical resistance and protect sample integrity across HPLC and LC‑MS workflows. The black polyethylene cap offers light‑blocking properties, making it suitable for light‑sensitive samples while also supporting color‑coding and workflow organization.
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
Black cap format ✅ Ideal for light-sensitive samples 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
Light-sensitive sample handling
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
This and other custom items are Custom Ordered and require quotation
Additional Resources
Custom Item Pricing Information