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Material Data Sheet N107-B85
NBR N107 - Black (Sulphur Cross Linked)

General

N107-B85 is a black Nitrile Butadiene Rubber commonly referred to as NBR, Nitrile or BUNA. Good physical characteristics and chemical resistance to the most common hydraulic fluids makes MBR an excellent sealing material .NBR materials are one of the most used elastomers in sealing applications.

 

Physical properties

Chemical Resistance

Density

DIN 53479

g/cm³

1.32

Hardness at 20°

DIN53505

Shore A

85

Tensile strength

DIN 53504

N/mm²

> 17

Modulus 100%

DIN 53504

N/mm²

10.2

Elongation at break

DIN 53504

%

>155

Compression set: 22h/70° 

DIN 53517A

%

7

Compression set: 22h/100°

DIN 53485

%

9

Min service temperature

 

°C

-25

Max service temperature

 

°C

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water up to 70°

R

Water up to 90°

S

Steam

U

HFA, HFB,HFC fluids

R

HFD fluids

U

Mineral / vegetable Oils

R

Silicone Oils

S

Biodegradable Oils

S

Diesel Fuel

R

Gasoline Fuel

S

Alcohols

R

Ozone, Oxygen

U

Air up to 100°

R

Air up to 150°

U

Key to chemical resistance: 

R= resistant

S= suitable

U= unsuitable

Main application

Static and dynamic seals (standard and special), wipers, O-rings, flange seals, rotary seals, rubber energizers (preload elements). General applications in petroleum fluids, water, greases, mineral oils.

Analysis and Evaluation

The mentioned properties are only valid for test pieces of the corresponding ISO, DIN and ASTM standards. They cannot be directly related to seals, gasket and other sealing products and should be used only as a general guide.