Corks
Corks
Commonly used in laboratories because of their impermeability and general absence of toxic elements, cork is a useful material to stop test tubes and flasks. Cork, also known as a stopper or bung, is partially inserted inside of a container to form a seal. This differs from a lid, which does not displace the inner volume during a seal. Cork stoppers, which come in numerous sizes, are generally safe for use in packaging or for the processing of food and are best suited for solid specimens and materials. Corks should be rolled on a clean surface to soften their lower half prior to use, allowing the cork to expand and form a tight seal when pressed into a flask or vial.
special interests:
Science Education
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Eisco™ Bark Cork Stopper
Available in pack of 10.
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United Scientific Supplies Cork Stoppers
Grade XXX Tapered Cork Stoppers are an excellent choice for general laboratory use
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GSC Go Science Crazy Natural Cork Stopper
100% Natural Cork Stopper
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GSC Go Science Crazy Laboratory Grade Cork Stoppers
Available in different sizes for many laboratory or classroom needs. GSC International Laboratory Grade Cork Stoppers are solid type corks, and have a variety of useful applications.
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Corks of Assorted Sizes
Be prepared with these sturdy cork stoppers in a range of sizes.
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Economical Cork Stoppers
For all of your laboratory needs.