Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Septa, bonded in "knurled", polypropylene, Natural Translucent Caps. For use with 9-425mm thread, 12x32mm autosampler vials. Soft-Guard Brand. 1000/CS
Additional Info:
Soft‑Guard™ septa use a specialized silicone formulation engineered to reduce coring and maintain elasticity over multiple injections. The bonded PTFE/silicone barrier provides chemical resistance and protects sample integrity, making these caps suitable for demanding HPLC, GC, LC‑MS, and GC‑MS workflows.
The 9502S‑E‑10C‑N‑M Soft‑Guard™ Screw Caps are designed for laboratories requiring high-volume, reliable autosampler performance. These caps feature advanced septa technology that allows easier needle penetration while maintaining superior resealing compared to conventional alternatives, improving uptime and data consistency.
Manufactured with a natural translucent polypropylene cap and knurled exterior, these caps offer secure handling and consistent torque during use. Designed for 9‑425 thread, 12 × 32 mm autosampler vials, they provide broad autosampler compatibility in regulated and high-throughput environments.
Key Features & Benefits
Easier needle penetration vs. standard septa
Superior resealing capability ✅ Fewer missed injections, improved uptime
White silicone with red PTFE barrier
Chemically resistant and durable ✅ Maintains sample integrity
Reduced septa coring
Consistent sealing across repeated injections ✅ Reliable analytical results
Fits 9‑425 screw thread vials
For 12 × 32 mm autosampler vials ✅ Industry-standard format
Enhanced grip and handling
Natural translucent construction ✅ Easy cap application and removal
Typical Applications
High-throughput HPLC and UHPLC analysis
GC and GC‑MS workflows
LC‑MS applications
Pharmaceutical, environmental, and QC laboratories
Important Notes
Designed for 9‑425, 12 × 32 mm autosampler vials
Suitable for multiple injections
Bonded septa—no assembly required
Case quantity format (1000/CS) for high-volume use
Additional Resources