Septa Selection Guide

Choosing the right septum for your application can help you optimise performance and results. Our septa selection guide will help you match our products to your needs.

Red Rubber/PTFE Silicone/PTFE Pre-slit PTFE/Silicone Septa PTFE/Silicone/PTFE Septa
• PTFE-laminated synthetic rubber
• Economical
• Easy to pierce and lower fragmentation than natural rubber
• Moderate re-sealability
• Temp. range -40°C to 110°C
• Good re-sealability
• Autoclavable
• Excellent resistance to coring
• Much cleaner than natural or synthetic rubber
• Temp. range -40°C to 200°C
• Reduces the possibility of coring
• Prevents a vacuum forming inside the vial
• Temp. range -40°C to 200°C
• Good re-sealability
• Autoclavable
• Excellent resistance to coring
• Temp. range -40°C to 200°C
Recommended for:
✓ Routine analyses
Recommended for:
✓ Multiple injections
✓ Sample storage
Recommended for:
✓ Applications using thin gauge or blunt-tipped needles
Recommended for:
✓ Multiple injections
✓ Demanding applications such as internal standards, trace analysis
✓ Applications with a long time between injections.