9-245 9mm Screw Top Cap silicone/PTFE Silicone Septa
Silicone/PTFE (Polytetrafluoroethylene) septa, also known as silicone/PTFE liners or caps, are commonly used in laboratories and analytical chemistry for sealing sample vials or containers. These septa provide a secure and reliable seal to prevent sample evaporation or contamination.Silicone/PTFE septa are widely used in applications such as gas chromatography (GC), liquid chromatography (LC), headspace analysis, and sample storage. They are available in different sizes and configurations to fit specific vial or container types, ensuring a secure and reliable seal for various laboratory processes.
1.The silicone layer can withstand a variety of chemicals and resist reactive or corrosive substances.
2.The elasticity of the silicone allows the spacer to reseal after puncture, maintaining a tight seal and preventing sample evaporation or contamination.
3.PTFE lining reduces the risk of contaminants leaching from the spacer into the sample, making it suitable for trace analysis or sensitive assays.
4.Silicone /PTFE spacers can withstand a variety of temperatures, including extreme and low temperatures, without affecting their sealing performance.
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