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Pressure Seal 3844 Nitrile - Butadiene
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes: Compound 3844 is an 80 durometer black colored Buna N elastomer, it is formulated with FDA sanctioned materials. It exhibits good resistance to compression set, petroleum based oils, aliphatic and aromatic fuels.

This compound will meet or exceed the specifications listed and has the following physical properties: ASTM D2000 2 BF 820 B14 B34 EO14 EO34; 3 BG 820 B14; 4 BG 820 B14 EO34; 6 BG 820 A14 B14 B34 EO14 EO34; 7 BG 820 B14 EA14 EF11 EF21 EO14 EO34; 3 CH 820 A25 B14 B34 EO16 EO36; 4 CH 820 A25 B14 B34 EO15 EO35 F14; 5 CH 820 B14 B34 EF31 EO36; 6 CH 820 B14 B34 EF31 EO36

Information provided by Pressure Seals Inc.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.27 g/cc1.27 g/cc
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 8282
 68
@Temperature 23.0 °C,
Time 252000 sec		68
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 71
@Temperature 23.0 °C,
Time 252000 sec		71
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 80
@Temperature 100 °C,
Time 252000 sec		80
@Temperature 212 °F,
Time 70.0 hour		Distilled water aged
 80
@Temperature 100 °C,
Time 252000 sec		80
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 81
@Temperature 23.0 °C,
Time 252000 sec		81
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
 81
@Temperature 125 °C,
Time 252000 sec		81
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 81
@Temperature 150 °C,
Time 252000 sec		81
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 85
@Temperature 100 °C,
Time 252000 sec		85
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 86
@Temperature 150 °C,
Time 252000 sec		86
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 87
@Temperature 125 °C,
Time 252000 sec		87
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
 87
@Temperature 100 °C,
Time 252000 sec		87
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 91
@Temperature 125 °C,
Time 252000 sec		91
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
 94
@Temperature 125 °C,
Time 252000 sec		94
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
Tensile Strength 15.91 MPa2308 psi
 13.112 MPa
@Temperature 23.0 °C,
Time 252000 sec		1901.8 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 13.733 MPa
@Temperature 23.0 °C,
Time 252000 sec		1991.8 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 16.136 MPa
@Temperature 23.0 °C,
Time 252000 sec		2340.3 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
 16.693 MPa
@Temperature 100 °C,
Time 252000 sec		2421.1 psi
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 17.250 MPa
@Temperature 150 °C,
Time 252000 sec		2501.9 psi
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 17.345 MPa
@Temperature 150 °C,
Time 252000 sec		2515.7 psi
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 17.4089 MPa
@Temperature 100 °C,
Time 252000 sec		2524.95 psi
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 17.520 MPa
@Temperature 125 °C,
Time 252000 sec		2541.1 psi
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 17.5680 MPa
@Temperature 100 °C,
Time 252000 sec		2548.03 psi
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 18.1409 MPa
@Temperature 125 °C,
Time 252000 sec		2631.12 psi
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
 18.363 MPa
@Temperature 125 °C,
Time 252000 sec		2663.4 psi
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
 18.47511 MPa
@Temperature 125 °C,
Time 252000 sec		2679.588 psi
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
Elongation, Ultimate 280 %280 %
 168 %
@Temperature 125 °C,
Time 252000 sec		168 %
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
 201.1 %
@Temperature 23.0 °C,
Time 252000 sec		201.1 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 205.2 %
@Temperature 150 °C,
Time 252000 sec		205.2 %
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 206.1 %
@Temperature 23.0 °C,
Time 252000 sec		206.1 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 220.1 %
@Temperature 150 °C,
Time 252000 sec		220.1 %
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 231 %
@Temperature 100 °C,
Time 252000 sec		231 %
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 236.88 %
@Temperature 125 °C,
Time 252000 sec		236.88 %
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
 241.92 %
@Temperature 125 °C,
Time 252000 sec		241.92 %
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 264.1 %
@Temperature 100 °C,
Time 252000 sec		264.1 %
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 281.12 %
@Temperature 100 °C,
Time 252000 sec		281.12 %
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 290.92 %
@Temperature 23.0 °C,
Time 252000 sec		290.92 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
 407.1 %
@Temperature 125 °C,
Time 252000 sec		407.1 %
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
100% Modulus 7.853 MPa1139 psi
Tear Strength 42.4 kN/m242 pliDie C
 57.0 kN/m325 pliDie B
Compression Set  5.4 %
@Temperature 100 °C,
Time 79200 sec		5.4 %
@Temperature 212 °F,
Time 22.0 hour		Solid
 8.4 %
@Temperature 100 °C,
Time 252000 sec		8.4 %
@Temperature 212 °F,
Time 70.0 hour		Solid
 12.7 %
@Temperature 100 °C,
Time 79200 sec		12.7 %
@Temperature 212 °F,
Time 22.0 hour		Plied
 17.5 %
@Temperature 100 °C,
Time 252000 sec		17.5 %
@Temperature 212 °F,
Time 70.0 hour		Plied
 
Thermal PropertiesMetricEnglishComments
Shrinkage  -8.50 %
@Temperature 125 °C,
Time 252000 sec		-8.50 %
@Temperature 257 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -7.60 %
@Temperature 150 °C,
Time 252000 sec		-7.60 %
@Temperature 302 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -5.70 %
@Temperature 100 °C,
Time 252000 sec		-5.70 %
@Temperature 212 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -0.300 %
@Temperature 23.0 °C,
Time 252000 sec		-0.300 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel A
 0.010 %
@Temperature 100 °C,
Time 252000 sec		0.010 %
@Temperature 212 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 1.1 %
@Temperature 125 °C,
Time 252000 sec		1.1 %
@Temperature 257 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 2.4 %
@Temperature 150 °C,
Time 252000 sec		2.4 %
@Temperature 302 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 3.3 %
@Temperature 100 °C,
Time 252000 sec		3.3 %
@Temperature 212 °F,
Time 70.0 hour		Volume, Distilled water aged
 18.4 %
@Temperature 23.0 °C,
Time 252000 sec		18.4 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel B
 30.6 %
@Temperature 23.0 °C,
Time 252000 sec		30.6 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel C
 
Descriptive Properties
ColorBlack

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PPRESL030 / 318240

Specialty Compounds RTP Company




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