CUSTOM ITEM: Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, bonded in "knurled", polypropylene, Translucent Natural Caps. For use with 9-425mm thread, 12x32mm autosampler vials. Soft-Guard Brand. BULK PRICING.
Additional Info:
Pre‑slit septa are designed to reduce resistance during autosampler needle penetration, helping improve consistency in applications where lower injection force is beneficial.
The 9502S‑E‑30C‑N Soft‑Guard™ Screw Caps feature pre‑slit bonded septa that allow easier needle entry while maintaining effective resealing over multiple injections. The Soft‑Guard™ silicone formulation minimizes coring and preserves elasticity, supporting reliable performance in demanding workflows, particularly with Waters® Alliance and Acquity autosamplers.
The bonded PTFE/silicone septa provide chemical resistance and protect sample integrity during HPLC, GC, LC‑MS, and GC‑MS analysis. A natural translucent polypropylene cap with knurled exterior ensures secure handling and consistent application torque, while maintaining compatibility with standard 9‑425 thread, 12 × 32 mm autosampler vials.
Key Features & Benefits
Pre‑cut septa for reduced penetration resistance
Supports smoother needle entry ✅ Suitable for specific autosampler requirements
Easier penetration with reliable resealing
Reduced septa coring ✅ Helps maintain consistent injections
White silicone with red PTFE barrier
Chemically resistant construction ✅ Protects sample integrity
Maintains seal across repeated injections ✅ Consistent analytical performanceFits 9‑425 screw thread vials
For 12 × 32 mm autosampler vials ✅ Industry-standard format
Improved grip for handling
Natural translucent finish ✅ Easy application and removal
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Waters® Alliance and Acquity systems
Specialized analytical testing environments
Important Notes
Designed for 9‑425, 12 × 32 mm autosampler vials
Suitable for multiple injections
Bonded pre‑slit septa—no assembly required
Intended for specific applications requiring reduced penetration force
This and other custom items are Custom Ordered and require quotation
Additional Resources
Custom Item Pricing Information