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Pressure Seal 3820 Nitrile - Butadiene
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes: Compound 3820 is an 80 durometer black colored Buna N elastomer, it is specifically formulated for resistance to hot petroleum based oils and dry heat. It also exhibits very good resistance to compression set.

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 EO14; 4 BG 820 A14 B14 EO14; 6 BG 820 A14 B14 B34 EO14 EO34; 7 BG 820 B14 EA14 EF11 EF21 EO14 EO34 F16; 4 BK 820 A24 B14 B34 EF11 EF21 EO14; 3 CH 820 A25 B14 B34 EO16 EO36; 4 CH 820 A25 B14 EF31 EO15 EO35 F16; 5 CH 820 A25 B14 B34 EO36 F14; 6 CH 820 B14 B34 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 1.22 g/cc1.22 g/cc
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 7878
 67
@Temperature 23.0 °C,
Time 252000 sec		67
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 69
@Temperature 23.0 °C,
Time 252000 sec		69
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 73
@Temperature 125 °C,
Time 252000 sec		73
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 74
@Temperature 150 °C,
Time 252000 sec		74
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 75
@Temperature 100 °C,
Time 252000 sec		75
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 76
@Temperature 100 °C,
Time 252000 sec		76
@Temperature 212 °F,
Time 70.0 hour		Distilled water aged
 78
@Temperature 23.0 °C,
Time 252000 sec		78
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
 80
@Temperature 125 °C,
Time 252000 sec		80
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
 80
@Temperature 150 °C,
Time 252000 sec		80
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 82
@Temperature 100 °C,
Time 252000 sec		82
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 82
@Temperature 100 °C,
Time 252000 sec		82
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 86
@Temperature 125 °C,
Time 252000 sec		86
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
 86
@Temperature 125 °C,
Time 252000 sec		86
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
Tensile Strength 15.95 MPa2314 psi
 7.5339 MPa
@Temperature 23.0 °C,
Time 252000 sec		1092.7 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 10.1949 MPa
@Temperature 23.0 °C,
Time 252000 sec		1478.65 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 14.359 MPa
@Temperature 150 °C,
Time 252000 sec		2082.6 psi
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 15.0610 MPa
@Temperature 150 °C,
Time 252000 sec		2184.42 psi
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 15.3322 MPa
@Temperature 125 °C,
Time 252000 sec		2223.75 psi
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
 15.3322 MPa
@Temperature 125 °C,
Time 252000 sec		2223.75 psi
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
 15.348 MPa
@Temperature 100 °C,
Time 252000 sec		2226.1 psi
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 15.364 MPa
@Temperature 125 °C,
Time 252000 sec		2228.4 psi
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 16.3533 MPa
@Temperature 23.0 °C,
Time 252000 sec		2371.85 psi
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
 16.8160 MPa
@Temperature 100 °C,
Time 252000 sec		2438.96 psi
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 16.911 MPa
@Temperature 100 °C,
Time 252000 sec		2452.8 psi
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 17.629 MPa
@Temperature 125 °C,
Time 252000 sec		2556.9 psi
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
Elongation, Ultimate 173 %173 %
 116.1 %
@Temperature 125 °C,
Time 252000 sec		116.1 %
@Temperature 257 °F,
Time 70.0 hour		Heat Aged
 116.1 %
@Temperature 125 °C,
Time 252000 sec		116.1 %
@Temperature 257 °F,
Time 70.0 hour		Heat Aged, Test Tube Method
 120.93 %
@Temperature 23.0 °C,
Time 252000 sec		120.93 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel B
 129.1 %
@Temperature 150 °C,
Time 252000 sec		129.1 %
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #1
 140.95 %
@Temperature 23.0 °C,
Time 252000 sec		140.95 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel C
 141 %
@Temperature 150 °C,
Time 252000 sec		141 %
@Temperature 302 °F,
Time 70.0 hour		ASTM Oil #3
 147.9 %
@Temperature 100 °C,
Time 252000 sec		147.9 %
@Temperature 212 °F,
Time 70.0 hour		Heat Aged
 157.1 %
@Temperature 125 °C,
Time 252000 sec		157.1 %
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #3
 162.966 %
@Temperature 125 °C,
Time 252000 sec		162.966 %
@Temperature 257 °F,
Time 70.0 hour		ASTM Oil #1
 166.95 %
@Temperature 100 °C,
Time 252000 sec		166.95 %
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #1
 173 %
@Temperature 100 °C,
Time 252000 sec		173 %
@Temperature 212 °F,
Time 70.0 hour		ASTM Oil #3
 174.9 %
@Temperature 23.0 °C,
Time 252000 sec		174.9 %
@Temperature 73.4 °F,
Time 70.0 hour		ASTM Reference Fuel A
100% Modulus 7.198 MPa1044 psi
Tear Strength 34.5 kN/m197 pliDie C
 45.6 kN/m260 pliDie B
Compression Set  9.0 %
@Temperature 100 °C,
Time 79200 sec		9.0 %
@Temperature 212 °F,
Time 22.0 hour		Solid
 9.9 %
@Temperature 100 °C,
Time 252000 sec		9.9 %
@Temperature 212 °F,
Time 70.0 hour		Solid
 12 %
@Temperature 125 °C,
Time 79200 sec		12 %
@Temperature 257 °F,
Time 22.0 hour		Solid
 12.9 %
@Temperature 100 °C,
Time 79200 sec		12.9 %
@Temperature 212 °F,
Time 22.0 hour		Plied
 16 %
@Temperature 100 °C,
Time 252000 sec		16 %
@Temperature 212 °F,
Time 70.0 hour		Plied
 20.3 %
@Temperature 125 °C,
Time 79200 sec		20.3 %
@Temperature 257 °F,
Time 22.0 hour		Plied
 
Thermal PropertiesMetricEnglishComments
Brittleness Temperature -37.2 °C-35.0 °F
Shrinkage  -4.80 %
@Temperature 125 °C,
Time 252000 sec		-4.80 %
@Temperature 257 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -4.60 %
@Temperature 150 °C,
Time 252000 sec		-4.60 %
@Temperature 302 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -4.60 %
@Temperature 100 °C,
Time 252000 sec		-4.60 %
@Temperature 212 °F,
Time 70.0 hour		Volume, ASTM Oil #1
 -0.700 %
@Temperature 23.0 °C,
Time 252000 sec		-0.700 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel A
 2.8 %
@Temperature 100 °C,
Time 252000 sec		2.8 %
@Temperature 212 °F,
Time 70.0 hour		Volume, Distilled water aged
 7.8 %
@Temperature 100 °C,
Time 252000 sec		7.8 %
@Temperature 212 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 9.2 %
@Temperature 125 °C,
Time 252000 sec		9.2 %
@Temperature 257 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 9.6 %
@Temperature 150 °C,
Time 252000 sec		9.6 %
@Temperature 302 °F,
Time 70.0 hour		Volume, ASTM Oil #3
 23.8 %
@Temperature 23.0 °C,
Time 252000 sec		23.8 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel B
 43.3 %
@Temperature 23.0 °C,
Time 252000 sec		43.3 %
@Temperature 73.4 °F,
Time 70.0 hour		Volume, ASTM Reference Fuel C
 
Descriptive Properties
ColorBlack

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PPRESL028 / 318238

Specialty Compounds RTP Company




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