Chemours Viton® A-500 Fluoroelastomer Compound

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Chemours Viton® A-500 Fluoroelastomer Compound
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Improved compression molding Better mold release Less mold fouling Faster cure rate Improved compression set resistance Applications Compression and transfer molding such as O-rings, gaskets, and seals Profile extrusion Calendered goods Chemours was formed from former DuPont performance chemicals businesses, including the Viton product line, in 2015.
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Physical Properties	Original Value	Comments

Specific Gravity	1.82 g/cc	Uncompounded Viton
Mooney Viscosity	50 @Temperature 121 °C	ML (1+10), Uncompounded Viton; ASTM D1646

Mechanical Properties	Original Value	Comments
Hardness, Shore A	78	ASTM D2240
Tensile Strength at Break	15.6 MPa	ASTM D412
Elongation at Break	195 %	ASTM D412
100% Modulus	0.00720 GPa @Strain 100 %	ASTM D412
Compression Set	9.0 % @Temperature 200 °C, Time 79200 sec	O-Rings; ASTM D395B
	15 % @Temperature 200 °C, Time 252000 sec	O-Rings; ASTM D395B
	26 % @Temperature 200 °C, Time 1.21e+6 sec	O-Rings; ASTM D395B
	31 % @Temperature 232 °C, Time 252000 sec	O-Rings; ASTM D395B

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	204 °C	Continuous use
	>= 260 °C	Intermittent use
Minimum Service Temperature, Air	-23.0 - -18.0 °C	Viton is generally useful down to -18 to -23°C.

Processing Properties	Original Value	Comments
Processing Temperature	177 °C @Time 601 sec	Press Cure
	232 °C @Time 86400 sec	Postcure

Descriptive Properties
Color	Silver-Gray	Uncompounded Viton
Form	Free-flowing pellets	Uncompounded Viton
Formulation as Tested	0.5	VPA No.1
	0.5	VPA No.3
	2.5	Viton® Curative #50
	3	MgO
	30	MT Black
	6	Ca(OH)2
	96.5	A-500
Odor	None	Uncompounded Viton
Storage Stability	Excellent	Uncompounded Viton

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PDVC9926 / 170567

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