Date: 18-JULY-2016 Last Updated: 14-JUNE-2025
Soft-Guard™ septa are specifically engineered to reduce solvent evaporation and maintain sample integrity in demanding analytical workflows. Among our septa offerings, Soft-Guard™ is the most effective at resealing after needle penetration, outperforming competitive products in both evaporation control and durability.
These septa are approximately 5 mil thick and are constructed from a proprietary blend of high-purity silicone rubber and cast PTFE. This unique formulation minimizes extractables that can interfere with sensitive analyses, such as HPLC, GC, LCMS, and GCMS [1].
Key advantages of Soft-Guard™ septa include:
- Superior resealing: Maintains a tight seal even after multiple injections, reducing solvent loss and contamination risk.
- Low extractables: Ensures cleaner baselines and more reliable data by minimizing chemical interference.
- Optimized needle penetration: Designed to accommodate a wide range of autosampler needles (fine, blunt, or dull) without coring or damaging the septa.
- Extended instrument uptime: Reduces missed injections and needle blockages, improving overall system performance.
Soft-Guard™ septa are ideal for labs seeking consistent, high-quality results with minimal maintenance interruptions.
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References [1] Soft-Guard™ septa - 9502S-E-30C-B | MICROSOLV Technology Corp