DAI-EL™ G-621

About
DAI-EL®   G-621 DAI-EL® G-621 is a bisphenol cure incorporated terpolymer designed for transfer and compression molding applications. DAI-EL® G-621 provides excellent chemical and solvent resistance with very low permeation rates.&&DAI-EL®   G-621 DAI-EL G-621 is a fluoroelastomer comprising terpolymer of vinylidenefluoride/tetrafluoroethylene/hexafluoropropylene, contains a curing agent (bisphenol AF) and cure accelerator. This material is of the grade of the highest fluorine content and provides excellent solvent resistance.&&

Product Description
SupplierDaikin Fluorochemicals
Generic氟橡胶
Material StatusCommercial: Active
FeaturesSolvent resistance,Terpolymer
AvailabilitysNorth America,Asia Pacific

Technical Data
PHYSICALNominal valueUnitTest method
Density1.92g/cm³
Mooney viscosity
ML 1+10,121℃50MU
Fluorine content71%

MECHANICALNominal valueUnitTest method
Shore hardness
Shore A, 25 ℃76 

elastic bodyNominal valueUnitTest method
tensile strength
Yield, 25 ℃16.2MPa
100% strain, 25 ℃3.70MPa
Tensile strain
Fracture, 25 ℃280%
tear strength
25℃19.6kN/m
Compression deformation 
25℃,70 hr23%
100℃,70 hr18%
175℃,70 hr20%
200℃,70 hr29%

Aging performanceNominal valueUnitTest method
The rate of change in tensile strength in air
230℃,70 hr5.0%
The rate of change in ultimate elongation in air
230℃,70 hr-2.0%
The rate of change in hardness of a hardness tester in the air
Shore A, 230 ℃, 70 hr0.0 

THERMALNominal valueUnitTest method
Embrittlement temperature-15.0

Supplementary informationNominal valueUnitTest method
curing temperature170
Curing time
Curelastmeter3.5min
Gehman Torsion Test 
T10-5
T2-2
TR Test 
TR10-8
TR70-2

Notes
1. Typical properties: these are not to be construed as specifications.
2. 23°C
3. 25% compression
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