Pressure Seal 23761 Ethylene Propylene

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Pressure Seal 23761 Ethylene Propylene
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Compound 23761 is a 70 durometer black colored EPDM, it is approved by NSF under the "Drinking Water System Components Program" Standard 61. This compound is formulated to be Chloramine resistant and self lubricating, the formulation uses FDA approved ingredients. This compound exhibits good resistance to heat and compression set. It will remain non brittle at low temperatures. This compound will meet or exceed the specifications listed and has the following physical properties: ASTM D2000 2 AA 720 A13 EA14 F17; 3 AA 720 B13 B33 EA14 F17 G11; 4 AA 720 A13 B13 B33 EA14 F17 G21; 5 AA 720 A13 B13 B33 EA14 F17 G21; 2 BA 720 F17; 3 BA 720 A14 B13 F17 F19; 4 BA 720 A14 F17 F19; 5 BA 720 F17 F19; 4 CA 720 A25 B35 EA14 F17 F18 F19 G11 G21; 5 CA 720 A25 B35 EA14 F17 F18 G11 G21; 2 DA 720 A26 B36 EA14 F19 G11 G21; 3 DA 720 A26 B36 EA14 F19 G11 G21 This Compound is RoHS Compliant Information provided by Pressure Seals Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Shore A	70
	67 @Temperature 70.0 °C	Residual Chlorine 50 ppm, 4 weeks
	68 @Temperature 100 °C, Time 252000 sec	Sodium Hydroxide
	70 @Temperature 23.0 °C, Time 252000 sec	Nitric Acid
	70 @Temperature 150 °C, Time 252000 sec	Sodium Hypochlorite
	70 @Temperature 70.0 °C, Time 252000 sec	Heat Aged
	70 @Temperature 100 °C, Time 252000 sec	Heat Aged
	71 @Temperature 125 °C, Time 252000 sec	Heat Aged
	71 @Temperature 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
	73 @Temperature 150 °C, Time 252000 sec	Heat Aged, Test Tube Method
	73 @Temperature 150 °C, Time 252000 sec	Heat Aged
Tensile Strength	2319 psi
	1370.5 psi @Temperature 150 °C, Time 252000 sec	Sodium Hypochlorite
	1741.6 psi @Temperature 23.0 °C, Time 252000 sec	Nitric Acid
	2270.3 psi @Temperature 100 °C, Time 252000 sec	Sodium Hydroxide
	2319 psi @Temperature 150 °C, Time 252000 sec	Heat Aged
	2319 psi @Temperature 150 °C, Time 252000 sec	Heat Aged, Test Tube Method
	2414.1 psi @Temperature 100 °C, Time 252000 sec	Heat Aged
	2416.4 psi @Temperature 70.0 °C, Time 252000 sec	Heat Aged
	2441.9 psi @Temperature 125 °C, Time 252000 sec	Heat Aged
	2441.9 psi @Temperature 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
Elongation, Ultimate	328 %
	218.1 % @Temperature 150 °C, Time 252000 sec	Sodium Hypochlorite
	275.8 % @Temperature 23.0 °C, Time 252000 sec	Nitric Acid
	303.1 % @Temperature 100 °C, Time 252000 sec	Sodium Hydroxide
	328 % @Temperature 150 °C, Time 252000 sec	Heat Aged
	328 % @Temperature 150 °C, Time 252000 sec	Heat Aged, Test Tube Method
	333.9 % @Temperature 70.0 °C, Time 252000 sec	Heat Aged
	335.9 % @Temperature 100 °C, Time 252000 sec	Heat Aged
	349 % @Temperature 125 °C, Time 252000 sec	Heat Aged
	349 % @Temperature 125 °C, Time 252000 sec	Heat Aged, Test Tube Method
100% Modulus	345 psi
Tear Strength	164 pli	Die C
	194 pli	Die B
Compression Set	8.9 % @Temperature 125 °C, Time 79200 sec	Solid
	9.6 % @Temperature 100 °C, Time 79200 sec	Solid
	11 % @Temperature 100 °C, Time 79200 sec	Plied
	11.4 % @Temperature 150 °C, Time 79200 sec	Solid
	11.4 % @Temperature 100 °C, Time 252000 sec	Solid
	11.8 % @Temperature 70.0 °C, Time 79200 sec	Solid
	12.1 % @Temperature 125 °C, Time 79200 sec	Plied
	13.2 % @Temperature 150 °C, Time 79200 sec	Plied
	13.2 % @Temperature 100 °C, Time 252000 sec	Plied
	15.6 % @Temperature 70.0 °C, Time 79200 sec	Plied

Thermal Properties	Original Value	Comments
Brittleness Temperature	<= -95.0 °F
Shrinkage	4.1 % @Temperature 70.0 °C	Weight, Residual Chlorine 50 ppm, 4 weeks
	4.3 % @Temperature 70.0 °C	Volume, Residual Chlorine 50 ppm, 4 weeks
	-0.300 % @Temperature 150 °C, Time 252000 sec	Volume, Sodium Hypochlorite
	0.00 % @Temperature 23.0 °C, Time 252000 sec	Volume, Nitric Acid
	9.4 % @Temperature 100 °C, Time 252000 sec	Volume, Sodium Hydroxide

Descriptive Properties
Color	Black
TR-10 Temperature	-51.1°C

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PPRESL231 / 318441

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