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Lab Rubber Cork in BIHAR

Leading Manufacturers, Suppliers & Exporters From India


1. Application

Rubber corks are used for:

  • Sealing laboratory flasks, test tubes, burettes, and reagent bottles
  • Temporary or semi-permanent closure of glassware
  • Air-tight sealing during chemical reactions
  • Microbiology and culture applications
  • Gas delivery setups (with bored corks)
  • Educational laboratory experiments

Widely used in chemical, pharmaceutical, dairy, environmental, and academic laboratories.

2. Compliance Standard

  • Manufactured under ISO 9001 Quality Management System
  • Conforms to general laboratory-grade material standards
  • Non-toxic and laboratory-safe composition
  • Suitable for GLP-compliant laboratory use

(Specific regulatory compliance depends on manufacturer and material type.)

3. Product Description

Rubber corks are tapered sealing plugs made from high-quality natural rubber or synthetic elastomer. They are designed to provide a secure and leak-proof fit in laboratory glassware.

Available in:

  • Solid type (plain)
  • Single-bore (1 hole)
  • Double-bore (2 holes)
  • Custom bored configurations

The tapered design ensures tight sealing while allowing easy insertion and removal.

4. Technical Specifications

Parameter

Specification

Material

Natural Rubber / Neoprene / Synthetic Elastomer

Color

Black / Brown

Shape

Tapered (conical)

Type

Solid / 1-hole / 2-hole

Hardness

40–60 Shore A (approx.)

Temperature Resistance

Up to 100°C (short duration)

Chemical Resistance

Moderate (not suitable for strong solvents & concentrated acids)

Surface Finish

Smooth, non-porous

Reusability

Yes

5. Apparatus is Supplied

  • Rubber cork (as per selected size and type)
  • Bulk packaging (pack of 10 / 50 / 100 pieces depending on order)

6. Optional Accessories

  • Glass tubing
  • Delivery tubes
  • Bunsen burner assembly
  • Retort stand & clamps
  • Flask and test tubes
  • Cork borers (for custom hole making)

7. Common Sizes Available

Rubber corks are available in standard numbered sizes:

Size Range:
No. 000, 00, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

(Custom sizes available on request.)

8. Dimensions & Weight (Approx.)

Size No.

Top Diameter (mm)

Bottom Diameter (mm)

Height (mm)

Approx. Weight

0

12

9

20

5–8 g

3

19

15

22

8–15 g

5

26

21

25

15–25 g

8

32

27

30

25–40 g

10

38

32

35

40–60 g

12

44

36

38

60–80 g

14

50

42

40

80–120 g

16

58

48

45

120–180 g

Note: Dimensions may slightly vary depending on manufacturer.

We are providing Lab Rubber Cork in all states

We cover the following Industrial, Commercial & Residential areas:

Araria
Arwal
Aurangabad
Banka
Begusarai
Bhagalpur
Bhojpur
Buxar
Darbhanga
Gaya
Gopalganj
Jamui
Jehanabad
Kaimur (Bhabua)
Katihar
Khagaria
Kishanganj
Lakhisarai
Madhepura
Madhubani
Munger
Muzaffarpur
Nalanda
Nawada
Pashchim Champaran
Patna
Purbi Champaran
Purnia
Rohtas
Saharsa
Samastipur
Saran
Sheikhpura
Sheohar
Sitamarhi
Siwan
Supaul
Vaishali
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