Septa & Cap Selection

Proper septa selection is critical to prevent contamination and avoid damage to the needle and instrument. The right choice of septa depends on the application. For highly sensitive samples, we recommend PTFE-lined silicone septa, because PTFE layer is good at chemically resistant. Besides, septa made of different materials are with different safety temperature resistance.

Septa Selection

MaterialsSafety Temperature
Red Rubber/PTFE-40°C to 110°C
Natural Rubber/TEF Butyl/PTFE-40°C to 120°C
PE-20°C to 80°C

Cap Selection

MaterialsSafety Temperature
PP Cap-20°C to 100°C
Aluminium Cap-60°C to 300°C
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