Chemours Viton® B-303C Fluoroelastomer Compound

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Chemours Viton® B-303C Fluoroelastomer Compound
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	high quality, smooth extrudate surface and appearance at thickness below .040” or 1.0mm excellent ‘green’ strength that helps maintain extrudate shape as well as enabling draw down to very thin veneer thicknesses excellent fuel permeation resistance good tensile strength good adhesion to other elastomers in multilayer hoses Chemours was formed from former DuPont performance chemicals businesses, including the Viton product line, in 2015.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.875 g/cc	1.875 g/cc	Uncompounded Viton
Mooney Viscosity	30 @Temperature 121 °C	30 @Temperature 250 °F	ML (1+10), Uncompounded Viton; ASTM D1646

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	74	74	No Postcure; ASTM D2240
	76	76	16 hours Postcure at 232 degrees C; ASTM D2240
Tensile Strength at Break	7.90 MPa	1150 psi	ASTM D412
	11.0 MPa	1600 psi	ASTM D412
Tensile Stress at Strain	1.20 MPa @Strain 10 %	174 psi @Strain 10 %	No Postcure; ASTM D412
	1.50 MPa @Strain 10 %	218 psi @Strain 10 %	16 hours Postcure at 232 degrees C; ASTM D412
	1.90 MPa @Strain 25 %	276 psi @Strain 25 %	No Postcure; ASTM D412
Elongation at Break	260 %	260 %	16 hours Postcure at 232 degrees C; ASTM D412
	359 %	359 %	No Postcure; ASTM D412
100% Modulus	3.50 MPa @Strain 100 %	508 psi @Strain 100 %	No Postcure; ASTM D412
	4.70 MPa @Strain 100 %	682 psi @Strain 100 %	16 hours Postcure at 232 degrees C; ASTM D412
Compression Set	25 % @Temperature 150 °C, Time 252000 sec	25 % @Temperature 302 °F, Time 70.0 hour	Plied, Postcured; ASTM D395B
	33 % @Temperature 200 °C, Time 252000 sec	33 % @Temperature 392 °F, Time 70.0 hour	Plied, Postcured; ASTM D395B
	34 % @Temperature 70.0 °C, Time 252000 sec	34 % @Temperature 158 °F, Time 70.0 hour	Plied, no postcure; ASTM D395B
	80 % @Temperature 150 °C, Time 252000 sec	80 % @Temperature 302 °F, Time 70.0 hour	Plied, no postcure; ASTM D395B

Processing Properties	Metric	English	Comments
Processing Temperature	162 °C @Time 1800 sec	324 °F @Time 0.500 hour	Cure
	232 °C @Time 57600 sec	450 °F @Time 16.0 hour	Postcure

Descriptive Properties
Color	Off white		Uncompounded Viton
Form	Sheet		Uncompounded Viton
Formulation as Tested	100		B303-C
	3		MgO
	30		MT Black
	6		Ca(OH)2
Odor	None		Uncompounded Viton
Storage Stability	Excellent		Uncompounded Viton

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.

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PDVC9943 / 170584

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