Pressure Seal 3917 Nitrile

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Pressure Seal 3917 Nitrile - Butadiene
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Compound 3917 is a 90 durometer black colored Buna N elastomer, it is formulated with molybdenum disulfide to provide internal lubrication. It exhibits good resistance to aliphatic and aromatic fuels. This compound will meet or exceed the specifications listed and has the following physical properties: ASTM D2000 6 BG 915 A14 B14 B34 EO14; 7 BG 915 B14 EO14 EA14 EF11 EF21; 4 BK 915 B14 B34 EF11 EF21 EO34 Information provided by Pressure Seals Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.35 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Shore A	88
	76 @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel C
	79 @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	88 @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
	89 @Treatment Temp. 100 °C, Time 252000 sec	Distilled water aged
	89 @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
	92 @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	94 @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	95 @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
	95 @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
Tensile Strength	2522 psi
	1788.1 psi @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel C
	2166.4 psi @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	2375.7 psi @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
	2375.7 psi @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	2511.9 psi @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	2544.7 psi @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
	2580.006 psi @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	2738.9 psi @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
Elongation, Ultimate	110 %
	30.04 % @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
	30.04 % @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	69.96 % @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	69.96 % @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	79.97 % @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel C
	89.98 % @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	89.98 % @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
	110 % @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
100% Modulus	2298 psi
Tear Strength	170 pli	Die B; Method D 624
Compression Set	10 % @Treatment Temp. 100 °C, Time 79200 sec	Solid
	20 % @Treatment Temp. 100 °C, Time 79200 sec	Plied

Thermal Properties	Original Value	Comments
Brittleness Temperature	-29.0 °F
Shrinkage	-8.20 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, ASTM Oil #1
	-0.100 % @Treatment Temp. 23.0 °C, Time 252000 sec	Volume, ASTM Reference Fuel A
	0.60 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, ASTM Oil #3
	4.4 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, Distilled water aged
	16.5 % @Treatment Temp. 23.0 °C, Time 252000 sec	Volume, ASTM Reference Fuel B
	29 % @Treatment Temp. 23.0 °C, Time 252000 sec	Volume, ASTM Reference Fuel C

Descriptive Properties
Color	Black

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PPRESL032 / 318242

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