Daikin DAI-EL® G-7351E Fluoroelastomer Copolymer, 66% Fluorine Content

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Daikin DAI-EL® G-7351E Fluoroelastomer Copolymer, 66% Fluorine Content
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	DAI-EL® G-7351E is a cure-incorporated copolymer with medium Mooney viscosity designed especially for injection molding of seals. It has very good mold flow and low compression set. DAI-EL® G-7351E may be used in compliance with 21 CFR 177.2600, Rubber articles intended for repeated use. Finished articles are required to comply with the end tests specified in 21 CFR177.2600 (e) or (f), as applicable. Typical Applications: O-rings, seals, gaskets, molded tubing Rheological Properties MDR 2000: Temperature: 177°C Frequency: 100 cpm Strain: 0.5° Test time: 6 min Rheological Properties ODR: Temperature: 177°C Frequency: 100 cpm Strain: 3 ° Test time: 12 min Information provided by Daikin.
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Physical Properties	Original Value	Comments

Specific Gravity	1.81 g/cc
Mooney Viscosity	35 @Temperature 121 °C	ML 1+10

Mechanical Properties	Original Value	Comments
Hardness, Shore A	77	MDR 2000
	77	ODR
Tensile Strength at Break	13.9 MPa	MDR 2000
	14.1 MPa	ODR
Elongation at Break	210 %	ODR
	220 %	MDR 2000
100% Modulus	5.70 MPa @Strain 100 %	ODR
	5.90 MPa @Strain 100 %	MDR 2000
Compression Set	15 % @Temperature 200 °C, Time 252000 sec	#214 O-ring, MDR 2000; ASTM D395 Method B
	16 % @Temperature 200 °C, Time 252000 sec	#214 O-ring, ODR; ASTM D395 Method B

Thermal Properties	Original Value	Comments
Minimum Service Temperature, Air	-18.0 °C	Low Temperature Retraction; ASTM D1329

Processing Properties	Original Value	Comments
Cure Time	1.50 min	ts2, scorch time, MDR 2000
	1.90 min	t'50, time to 50% cure, MDR 2000
	2.40 min	ts2, scorch time, ODR
	2.70 min	t'90, time to 90% cure, MDR 2000
	3.70 min	t'50, time to 50% cure, ODR
	4.00 min	t'90, time to 90% cure, ODR
	5.00 min @Temperature 177 °C	Press Cure, ODR
	10.0 min @Temperature 177 °C	Press Cure, MDR 2000
	24.0 hour @Temperature 232 °C	Post Cure, MDR 2000
	24.0 hour @Temperature 260 °C	Post Cure, ODR

Compliance Properties	Original Value	Comments
FDA	Yes	See notes for details.

Component Elements Properties	Original Value	Comments
Fluorine, F	66 %

Descriptive Properties
Color	White to cream
MH	123 dNm	maximum torque, ODR
	24.3 dNm	maximum torque, MDR 2000
ML	1.1 dNm	minimum torque, MDR 2000
	9.9 dNm	minimum torque, ODR
Test Formula	100 phr	DAI-EL® G-7351E
	3 phr	Magnesium oxide
	30 phr	MT Carbon Black (N-990)
	6 phr	Calcium hydroxide

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PDAIJ9835 / 209906

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