Daikin America Fluoroelastomers

Bisphenol Curable Terpolymers

Daikin bisphenol curable terpolymers are terpolymers of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene. Their fluorine content ranges between 66% and 71%. Like the bisphenol curable copolymers, they are available as both base polymer and precompound. These polymers are ideal for applications that require resistance to fuel mixtures and solvents, such as fuel hoses and seals used in chemical processing. Compared with copolymers, cure times tend to be a little longer and compression sets a little higher, and with the exception of DAI-EL G-671 and G-EXP-025, low temperature flexibility is not as good due to higher fluorine content. Injection and compression molding grades, extrusion grades and lower temperature grades are available.

Bisphenol Curable Terpolymers
 
G-EXP Series
G-EXP Series Mooney Viscosity Fluorine Content Defining Characteristics
G-EXP-025 27 66% Suitable for injection molding; TR-10 of -20°C
G-EXP-045 40 70% Very fast cure
G-EXP-056 40 70% Improved ultimate elongation
500 Series
500 Series Mooney Viscosity Fluorine Content Defining Characteristics
G-501N 64 69% Base polymer
G-501NK 74 68% Diamine curable base polymer
G-551 48 69% Suitable for compression and transfer molding
G-558 34 69% Suitable for calendering and extrusion
600 Series
600 Series Mooney Viscosity Fluorine Content Defining Characteristics
G-603 31 71% Suitable for compression and transfer molding
G-607BP 43 66% Base polymer
G-621 50 71% Suitable for compression and transfer molding
G-663BP 27 66% Base polymer suitable for injection molding
G-671 35 66% Suitable for compression and transfer molding with good low temperature properties
G-684BP 44 70% Base polymer