Chemours Viton® A-200 Fluoroelastomer Compound

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Chemours Viton® A-200 Fluoroelastomer Compound
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Lower viscosity Improved mold flow Excellent extrusion characteristics Better mold release Less mold fouling Improved compression set resistance Applications Transfer and injection molding for O-rings, Valve stem seals and shaft seals, and Parts with complicated shapes Extrusions for Fuel hose and tubing Solution coating for Fabric and Tanks or chemical containers 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	22 @Temperature 121 °C	ML (1+10), Uncompounded Viton; ASTM D1646

Mechanical Properties	Original Value	Comments
Hardness, Shore A	76	24 hours Postcure; ASTM D2240
Tensile Strength at Break	11.1 MPa	24 hours Postcure; ASTM D412
Elongation at Break	200 %	24 hours Postcure; ASTM D412
100% Modulus	0.00570 GPa @Strain 100 %	24 hours Postcure; ASTM D412
Compression Set	7.0 % @Temperature 23.0 °C, Time 79200 sec	O-Rings; ASTM D395B
	10 % @Temperature 200 °C, Time 79200 sec	O-Rings; ASTM D395B
	35 % @Temperature 200 °C, Time 1.21e+6 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	Cure
	232 °C @Time 86400 sec	Postcure

Descriptive Properties
Color	Silver-gray	Uncompounded Viton
Form	Free-flowing pellets	Uncompounded Viton
Formulation as Tested	1	VPA No.3
	100	A-200
	2.5	Viton® Curative #50
	3	MgO
	30	MT Black
	6	Ca(OH)2
Odor	None	Uncompounded Viton
Storage Stability	Excellent	Uncompounded Viton

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PDVC9870 / 170511

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