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	Metric	English	Comments

Density	1.23 g/cc	0.0444 lb/in³	ASTM D1817

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	69	69	ASTM D2240
Tensile Strength	15.5 MPa	2250 psi	ASTM D412
Elongation at Break	336 %	336 %	ASTM D412
100% Modulus	4.60 MPa	667 psi	ASTM D412
Compression Set	7.0 % @Temperature 100 °C, Time 79200 sec	7.0 % @Temperature 212 °F, Time 22.0 hour	ASTM D395, B
	12 % @Temperature 100 °C, Time 252000 sec	12 % @Temperature 212 °F, Time 70.0 hour	ASTM D395, B
	17 % @Temperature 168 °C, Time 360000 sec	17 % @Temperature 334 °F, Time 100 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	100 °C	212 °F
Minimum Service Temperature, Air	-30.0 °C	-22.0 °F	test; ASTM D1329, TR10
	-30.0 °C	-22.0 °F

Descriptive Properties
Color	black
Cross-linking	sulfur

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PFREU9295 / 293817

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