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Assorted Rubber Corks: in Natural Rubber only
General Labware

Assorted Rubber Corks: in Natural Rubber only

Model GI-2247 In stock
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Detailed information

Catalogue No. Pack Size Corks Specifications
2247/1 Pack of 50 Pcs Solid

 

(RANGE 2 Corks)

 7 Pcs Each Size Bottom—8,9,11,13,15
3 Pcs Each Size Bottom—17,21,23,25,29
2247/2 Pack of 50 Pcs One Hole

 

(RANGE 2 Corks)

 7 Pcs Each Size Bottom—8,9,11,13,15
3 Pcs Each Size Bottom—17,21,23,25,29
2247/3 Pack of 50 Pcs Two Hole

 

(RANGE 2 Corks)

 10 Pcs Each Size Bottom—13,15,17,18 3 Pcs Each Size Bottom—21,23
2 Pcs Each Size Bottom—25,29
2247/4 Pack of 58 Pcs Solid

 

(RANGE 2 Corks)

 8 Pcs Each Size Bottom—8,9,11,13,15,17 3 Pcs Each Size Bottom—21,23
2 Pcs Each Size Bottom—25,29
2247/5 Pack of 67 Pcs Solid

 

(RANGE 2 Corks)

 9 Pcs Each Size Bottom—8,9,11,13,15,17 4 Pcs Each Size Bottom—21,23
2 Pcs Each Size Bottom—25,29 One Pc any Size Small
2247/6 Pack of 50 Pcs Solid

 

(RANGE 1 Corks)

 7 Pcs Each Size No.—0,1,2,3,4
3 Pcs Each Size No.—5,7,9,10,11
2247/7 Pack of 50 Pcs One Hole

 

(RANGE 1 Corks)

 7 Pcs Each Size No.—0,1,2,3,4
3 Pcs Each Size No.—5,7,9,10,11
2247/8 Pack of 50 Pcs Two Hole

 

(RANGE 1 Corks)

 10 Pcs Each Size No.—2,3,4,5 3 Pcs Each Size No.—7,9
2 Pcs Each Size No.—10,11
2247/9 Pack of 58 Pcs Solid

 

(RANGE 1 Corks)

 8 Pcs Each Size No.—000,0,1,2,3,4 3 Pcs Each Size No.—7,9
2 Pcs Each Size No.—10,11
2247/10 Pack of 67 Pcs Solid

 

(RANGE 1 Corks)

 9 Pcs Each Size No.—000,0,1,2,3,4 4 Pcs Each Size No.—7,9
2 Pcs Each Size No.—10,11 One Pc any Small Size

 

 

 

Assorted Rubber Corks are precision-molded stoppers made from high-quality natural rubber and designed for reliable sealing of laboratory glassware and containers. They provide an airtight, chemical-resistant closure essential for experiments, sample protection, and general laboratory operations. Suitable for research, analytical, and industrial environments where secure sealing is required.

 

Key Features

  • Durable natural rubber construction with excellent flexibility and sealing performance
  • Airtight fit for flasks, test tubes, bottles, and reaction vessels
  • Good resistance to mild chemicals, acids, and laboratory reagents
  • Smooth surface finish for easy insertion and removal
  • Non-reactive, non-toxic, and safe for routine lab workflows
  • Available in multiple shapes and sizes to suit diverse applications

 

Material Specifications

  • Material: Natural rubber
  • Properties: High elasticity and compressive strength. Good sealing capability at room temperature. Resistant to mild acids, bases, and aqueous solutions
  • Temperature Range: Typically suitable up to ~70–80°C (not for high-heat applications)
  • Standards: Manufactured under general laboratory quality and safety standards (ISO-compliant production environment)

 

Technical Specifications

  • Sizes: Supplied in assorted standard laboratory sizes
  • Dimensions: Tapered profiles compatible with common glassware openings
  • Tolerance: Precision-moulded for consistent diameter and fit
  • Colour Options: Natural rubber finish (varied tones as shown)
  • Accessories: Supplied as assorted cork sets; no additional accessories required

 

Handling & Precautions

  • Insert/remove using gentle pressure to avoid glassware breakage
  • Clean with mild lab detergent; avoid harsh solvents that degrade rubber
  • Not recommended for autoclaving or exposure to high temperatures
  • Avoid prolonged contact with strong acids, organic solvents, and oils
  • Store in a dry, cool environment away from direct sunlight to prevent ageing.

 

Applications

  • General laboratory sealing of flasks, tubes, bottles, and sample containers
  • Routine use in chemistry, biology, pharmaceutical, and analytical labs
  • Ideal for QC/QA testing, academic research, biotechnology, and industrial R&D
  • Useful for temporary sealing during reactions, storage, transport, and sample preparation
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