Rubberized Cork Sheets

Chloroprene Rubber Bonded or Rubberised Cork Sheets are manufactured using fine Cork granules homogeneously mixed with Synthetic Rubber counterpart, thereby calendaring in required size & Vulcanization by means of Hydraulic Operated Steam Press.

Features:Rubber cork sheets

  1. Does not swell on contact with Oil, Gas, Water & other Liquids.
  2. Deformity of less than 1% under Pressure.
  3. Bear Vibration in Equipment/Machinery.
  4. Easy to cut, customize, bend in almost any shape without cracking unlike Asbestos/Jointing Sheets.
  5. Incredible service & Shelf life.

 

Applications:

  1. Electrical Industry- For Oil sealing of transformers, Switchgears, Gear Boxes, Motor Starters.
  2. Automobiles- As gaskets to make leak proof joints of metal components bearing Lubricants, Oil, Coolant etc.
  3. Industrial –Anti Vibration Pads are made from corrugated Rubber Sheets with a Cork layer in between.

Technical Specifications:

S. No.

Properties

Grades

General Purpose

Medium Oil Resistant

High Oil Resistant

1.

Specific Gravity (gm/cm3)

0.65

0.70

0.70

1.

Hardness (Shore “A”)

65±10

70±10

70±10

2.

Deformity under Pressure, Max. (In %)

2

1.5

1

3.

Tensile Strength, Min. (Psi)

120

200

250

4.

Compressibility at 400Psi

40

30

25

5.

Recovery %, Min.

70

80

80

6.

Compression Set, % Max.

80

85

90

7.

Chemical Tests

 

 

 

 

a) PH. Value

6

7

8

 

b) chloride Ion

0.25%

0.20% max.

0.15% max.

 

c) Sulphate Ion

0.25%

0.20% max.

0.15% max.

8.

Change in Volume, under ASTM (Transformer Oil) immersion for 3days. (Max. Value)

40%

25%

10%

 

Available sizes:

  • Width- 600mm
  • Length-900mm
  • Thickness- 1.5mm to 25mm.