Nitrile Rubber Gaskets

Nitrile Rubber Gaskets

Nitrile Rubber Gaskets, NBR,is an elastomer.Also known as Buna-N,this rubber is the most widely used elastomer for seals and gaskets.Its properties include excellent resistance to petroleum products as well as compression set,tear and abrasion resistance.It exhibits impressive resistance capabilities to oils, solvents, gasoline and petrol based fluids. It is effective for temperatures from -40°F to +250°F.NBR does not have good resistance to ozone,sunlight or weather,and is not effective for outside applications.

Model:KXT 1700

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Product Description

Nitrile Rubber Sheet

Nitrile rubber, as well known as Butadiene Acrilonitrile, Buna-N, Perbunan, or NBR rubber, was first developed in 1941 in a project meant to find an oil resistant rubber. However, NBR’s oil resistance depends on the grade of acrylonitrile.

 

The higher the grade of acrylonitrile the better is resistance to oil and fuel. However, as the grade of acrylonitrile increases, the endurance to low temperatures decreases. NBR has good abrasion resistance nonetheless its physical properties are moderate in comparison with the natural rubber.

 

Nitrile Rubber Gaskets has outstanding resistance to: oils, petrols, solvents, and lubricants, but poor ozone resistance. Poor ozone resistance.

Good resistance to inorganic chemical products except antioxidant agents and chlorine, it has satisfactory resistance to general hydrocarbons

 

Advantages

 Good general resistance to solvents, lubricants

 Good general resistance to oils, petrols

• Good compression set, tear strength

 Wide range of sevice temperature

 Good resistance to alkalis acids

 Good tensile strength, flexibility

 Moderate aging properties

 Good adhesion to metal.

 Good use with water

 Has good recovery

 

NBR rubber Properties

Item

NBR rubber

Test Method

Color

black., etc

-

Specific gravity

1.3-1.5g/cm3

ASTM D297

Hardness

40°-80° Shore A

ASTM D2240

Tensile strength

13 MPa (min)

ASTM D412

Elongation at break

250% (min)

ASTM D412

Width

Normal or custom

-

Tear strength

35 N/mm

ASTM D 624

Low temperature resistance

-25°C

ASTM D1329

Temperature range

-25°C to +120°C

ASTM D2000

 

Key:  = Excellent ,  = Good,  = Fair, X = Not Recommende

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