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. 1000/CS
Additional Info:
Pre‑slit septa reduce resistance during autosampler needle entry, supporting smoother injections where lower penetration force is beneficial.
The 9502S‑E‑30C‑N‑M Soft‑Guard™ Screw Caps combine pre‑slit silicone/PTFE septa with a low‑coring formulation that maintains elasticity for repeat injections. This design improves sealing consistency and helps reduce missed injections, particularly in systems such as Waters® Alliance and Acquity.
Bonded PTFE/silicone construction provides chemical resistance and sample protection across HPLC, GC, LC‑MS, and GC‑MS workflows. The natural translucent polypropylene cap with knurled exterior ensures secure handling and consistent torque when sealing 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
Reduced needle penetration resistance ✅ Supports smoother injections
Low coring, consistent resealing ✅ Improves run reliability
Chemical resistance ✅ Maintains sample integrity
Fits 12 × 32 mm autosampler vials ✅ Broad compatibility
Enhanced grip and handling ✅ Easy application and removal
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Waters® Alliance and Acquity systems
Routine and specialized analytical testing
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Bonded pre‑slit septa—no assembly required
Case quantity format (1000/CS)
This and other custom items may also be available as Custom Ordered configurations upon request
Additional Resources