Freudenberg Sealing Technologies NBR NB702822 Nitrile Butadiene Rubber

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Freudenberg Sealing Technologies NBR NB702822 Nitrile Butadiene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Nitrile rubber exhibits superior mechanical strength with high elasticity as well as good deformation behavior. Its relatively low heat resistance can be traced to the presence of reactive double bonds. It is used for oil- and fuel-resistant seals such as Simmerrings®, O-rings and frame seals. The use of NBR marked the arrival of elastomers as a sealing material particularly in general industry. Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Original Value	Comments

Density	1.23 g/cc	ASTM D1817

Mechanical Properties	Original Value	Comments
Hardness, Shore A	69	ASTM D2240
Tensile Strength	15.5 MPa	ASTM D412
Elongation at Break	336 %	ASTM D412
100% Modulus	4.60 MPa	ASTM D412
Compression Set	7.0 % @Temperature 100 °C, Time 79200 sec	ASTM D395, B
	12 % @Temperature 100 °C, Time 252000 sec	ASTM D395, B
	17 % @Temperature 168 °C, Time 360000 sec	ASTM D395

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	100 °C
Minimum Service Temperature, Air	-30.0 °C	test; ASTM D1329, TR10
	-30.0 °C

Descriptive Properties
Color	black
Cross-linking	sulfur

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PFREU9295 / 293817

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