NITRILE RUBBER (NBR)

  • Nitrile rubber or rubber, is the synthetic rubber that offers better chemical resistance and temperature capacity than neoprene.
  • Good resistance to hydrocarbons and oils.
  • Not recommended for chlorinated hydrocarbons, esters, ketones and strongly oxidizing agents.
  • Excellent resistance to high temperatures.
rubber
Property Unit Test Value
Color Black
Specific weight gr/cm3 1,21
Indentation hardness Shore A ASTM D2240 70
Breaking load MPa ASTM D412 12,0
Elongation at break % ASTM D412 250
Tearing N/mm

ASTM D624

Die C

25
Temperatures ºC -30 / 140

Thermal aging

(70h at 100ºC)

Shore A

%

%

ASTM D573

5

-15

-25

Permanent deformation

(22h at 100ºC)

%

ASTM D395

Method B

15

Solvent resistance

(70h at 100ºC)

Oli ASTM5

Oil IRM 903

ASTM D471

+5%

+12%

Chemical Resistances

to Ozone

Moderate

to dilute acids and bases

EXCELLENT

to concentrated acids and bases

Good

to hydrocarbons

EXCELLENT

to organic solvents

Good