Pressure Seal 3726 Nitrile

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Pressure Seal 3726 Nitrile - Butadiene
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Compound 3726 is a 70 durometer gray colored Buna N elastomer, it is formulated with FDA approved materials. This compound will meet or exceed the specifications listed and has the following physical properties: ASTM D2000 2 BF 715 EO14 EO34; 2 BG 715 EO14 EO34 EA14 EF11; 5 BG 712 A14 EO14 EO34 This Compound is RoHS Compliant Information provided by Pressure Seals Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.49 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Shore A	72
	54 @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	69 @Treatment Temp. 100 °C, Time 252000 sec	Distilled water aged
	70 @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
	70 @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
	70 @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	71 @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	73 @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	73 @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
Tensile Strength	1622 psi
	1404.6 psi @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
	1404.7 psi @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	1527.7 psi @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	1568.5 psi @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
	1631.7 psi @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	1646.33 psi @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	1873.4 psi @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
Elongation, Ultimate	621 %
	482.5 % @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged
	482.5 % @Treatment Temp. 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	497.4 % @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel B
	547.1 % @Treatment Temp. 100 °C, Time 252000 sec	Heat Aged
	573.2 % @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #1
	617.9 % @Treatment Temp. 100 °C, Time 252000 sec	ASTM Oil #3
	617.9 % @Treatment Temp. 23.0 °C, Time 252000 sec	ASTM Reference Fuel A
100% Modulus	311 psi
Tear Strength	157 pli	Die B
	199 pli	Die C
Compression Set	29.4 % @Treatment Temp. 100 °C, Time 79200 sec	Solid
	31.5 % @Treatment Temp. 125 °C, Time 79200 sec	Solid
	33.7 % @Treatment Temp. 100 °C, Time 79200 sec	Plied
	39 % @Treatment Temp. 100 °C, Time 252000 sec	Solid
	39.8 % @Treatment Temp. 125 °C, Time 79200 sec	Plied
	45.6 % @Treatment Temp. 100 °C, Time 252000 sec	Plied

Thermal Properties	Original Value	Comments
Brittleness Temperature	-10.0 °F
Shrinkage	-3.60 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, ASTM Oil #1
	2.9 % @Treatment Temp. 23.0 °C, Time 252000 sec	Volume, ASTM Reference Fuel A
	5.9 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, Distilled water aged
	7.3 % @Treatment Temp. 100 °C, Time 252000 sec	Volume, ASTM Oil #3
	31.7 % @Treatment Temp. 23.0 °C, Time 252000 sec	Volume, ASTM Reference Fuel B

Descriptive Properties
Color	Gray

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PPRESL020 / 318230

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