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.

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Fisherbrand™ Cork Stoppers - Superior Grade

Corks are cut from high-quality wood and are selected to meet superior standards

Pricing & Availability
Specifications

Color	Natural
Grade	Superior
Material	Wood
For Use With (Application)	Ideal for sealing bottles

Fisherbrand™ Cork Stoppers - Laboratory Grade

100% natural cork

Pricing & Availability
Specifications

Product Type	Cork Stopper
Color	Natural
Grade	Laboratory
Material	Wood
For Use With (Application)	Ideal for sealing bottles, safe to use in the packaging and/or processing of food

Fisherbrand™ Extra-Long Cork

Punched out from natural cork wood and tapered to size

Pricing & Availability

Fisherbrand™ Laboratory Grade Cork Stoppers, Assorted Sizes

Size

Pricing & Availability
Specifications

Product Type	Cork Stopper
Material	Wood
Grade	Laboratory
For Use With (Application)	Ideal for sealing bottles

Fisherbrand™ Superior Grade Cork Stoppers, Assorted Sizes

Corks are cut from high-quality wood and ideal for sealing bottles. Assorted lengths Sizes: 6-15

Pricing & Availability

Fisherbrand™ Select Cork Stoppers

Cork stoppers

Pricing & Availability
Specifications

Material	Cork
For Use With (Application)	Ideal for sealing bottles, safe to use in the packaging and/or processing of food

W.S. TYLER™ Cork Plugs for RO-TAP™ Sieve Shakers

Plug, Cork; W.S TYLER; For Ro-Tap sieve shakers

Pricing & Availability

Eisco™ Bark Cork Stopper

Available in pack of 10.

Pricing & Availability
Specifications

Shape	Conical
For Use With (Equipment)	Bottles, flasks and test tubes
Product Type	Cork Stopper
Color	Brown
Quantity	10/Pack
Grade	9 to 12
Material	Bark
Autoclavable	Not Autoclavable
Sterility	Non-sterile

United Scientific Supplies Cork Stoppers

Grade XXX Tapered Cork Stoppers are an excellent choice for general laboratory use

Pricing & Availability
Specifications

Shape	Tapered
Product Type	Cork Stopper
Color	Tan
Quantity	100 Pk.
Material	Cork
Autoclavable	Not Autoclavable
Sterility	Non-sterile

Economical Cork Stoppers

For all of your laboratory needs.

Pricing & Availability
Specifications

Grade	Laboratory
Material	Cork
For Use With (Application)	Ideal for sealing bottles

Corks of Assorted Sizes

Be prepared with these sturdy cork stoppers in a range of sizes.

Pricing & Availability
Specifications

Stopper Number	Assorted
Material	Cork
For Use With (Application)	Ideal for sealing bottles

Cole-Parmer Stopper Hole Boring Set, Chrome-Plated Steel; 12 Borers/Set

This chrome-plated steel cork borer set stays sharp. Flat blades permit easy boring of lightweight plastic, cork stoppers, and spongy articles. Set consists of twelve borers with outside diameters of 4, 6, 7.5, 8.5, 10, 12, 13, 15, 17, 18.5, 19, and 20.5 mm.