Silicone Rubber Corks / Stoppers / Septa Gaskets

A Bung, Stopper or Cork is a truncated cylindrical or conical closure to seal a container such as bottle, tube or barrel. Unlike a lid, which encloses a container from outside without displacing the inner volume, a bung is partially inserted inside the container to act as a seal. These can be used for all types of glass bottles. These stoppers fit tightly to prevent chemical leaks.

Salient Features of Silicone Tubings

  • Made from FDA-Sanctioned ingredients
  • Manufactured using FDA 21 CFR 177.2600 specifically for laboratory and medical use.
  • Able to withstand extreme temperature ranges from -80° F to 250° F


  • Hardness, 70 ± 5 Shore A
  • Tensile Strength, Kg/CM2 : 95 Min
  • Elongation at Break, % : 300% Min
  • Brittle Temperature : -80° F
  • Maximum operating temperature : 250° F