Daikin DAI-EL® G-741-A Fluoroelastomer Copolymer, 66% Fluorine Content

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Daikin DAI-EL® G-741-A Fluoroelastomer Copolymer, 66% Fluorine Content
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	DAI-EL® G-741-A is a cure-incorporated copolymer with medium Mooney viscosity. It has excellent mold flow compared with fluoroelastomers of similar Mooney viscosity, making it well suited for injection, transfer or compression molding. Properly compounded and cured, DAI-EL® G-741-A produces seals and other parts with excellent heat and compression set resistance. Typical Applications: Shaft seals, gaskets, molded tubing Rheological Properties MDR 2000: Temperature: 177°C Frequency: 100 cpm Strain: 0.5° Test time: 6 min Information provided by Daikin.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.81 g/cc	1.81 g/cc
Mooney Viscosity	40 @Temperature 121 °C	40 @Temperature 250 °F	ML 1+10

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	75	75
Tensile Strength at Break	17.5 MPa	2540 psi
Elongation at Break	200 %	200 %
100% Modulus	6.90 MPa @Strain 100 %	1000 psi @Strain 100 %
Compression Set	9.0 % @Temperature 200 °C, Time 252000 sec	9.0 % @Temperature 392 °F, Time 70.0 hour	#214 O-ring, MDR 2000; ASTM D395 Method B

Thermal Properties	Metric	English	Comments
Minimum Service Temperature, Air	-18.0 °C	-0.400 °F	Low Temperature Retraction; ASTM D1329

Processing Properties	Metric	English	Comments
Cure Time	1.60 min	0.0267 hour	ts2, scorch time, MDR 2000
	3.20 min	0.0533 hour	t'90, time to 90% cure, MDR 2000
	10.0 min @Temperature 177 °C	0.167 hour @Temperature 351 °F	Press Cure, MDR 2000
	1440 min @Temperature 232 °C	24.0 hour @Temperature 450 °F	Post Cure, MDR 2000

Component Elements Properties	Metric	English	Comments
Fluorine, F	66 %	66 %

Descriptive Properties
Color	White to cream
MH	24.7 dNm		maximum torque, MDR 2000
ML	1.4 dNm		minimum torque, MDR 2000
Test Formula	100 phr		DAI-EL® G-741-A
	3 phr		Magnesium oxide
	30 phr		MT Carbon Black (N-990)
	6 phr		Calcium hydroxide

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PDAIJ9822 / 209893

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