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Almost all septa are laminated on one side with PTFE, which has a high chemical resistance and forms an inert barrier between sample and carrier materail of the septa. The carrier materials have different physical and chemical properties, such as temperature resistance, resealability properities,cleanliness, hardness, thickness and so on.
Septa. A wide range of serrated and non-serrated septa, and sleeve stoppers are available for use as temporary closures for glassware joints, tubes, bottles, NMR tubes, ampules, and cannulation techniques in air-sensitive chemistry. To protect your valuable contents in the vessels or containers from the atmosphere, our range of septa provide
The same high quality PTFE-lined caps used on our Thermo Scientific glass environmental sample containers. The PTFE liner is bonded to the cap so it won't fall out or become separated from the cap. I-Chem™ Open-Top Septa Caps, 24-414mm, bonded septa, bulk Thermo Scientific™
