AGC CHEMICALS AMERICAS, INC.

AFLAS® Fluoroelastomers for

HEV / EV Cable Applications

What is AFLAS®?

• AFLAS 100 and 150 Series are unique fluoroelastomers

• Classified by ASTM D1418 as FEPM

• Totally different from other FKM type fluoroelastomers

• Viton

• Daiel

• Tecnoflon

• Etc…

• AFLAS 100 and 150 Series are formulated as

Tetrafluoroethylene/Propylene copolymer (TFE/P)

• AGC is the only manufacturer of this polymer in the world

What are the Benefits of AFLAS?

• Excellent heat resistance

• 200°C continuous service temperature

• Superior base resistance

• Unmatched electrical resistivity compared to FKM grades

• Used today for various cable insulator applications

• HEV / EV power cable

• Transmission cable

• ATF resistant

Positioning Map for Various Elastomers

AFLAS®

FKM, FEPM

Fluoroelastomers

75 100 125 150 175 200 225 250 275 300

Heat Resistance (deg. C)

Oil

Re

sis

tan

ce

(△

V%

, A

ST

M N

o.3

Oil

)0

10

20

30

40

60

80

100

120

140

HNBR

ACM

CR

CR

EPDM

VMQ

AFLAS Polymer Structure

FEPM = AFLAS

-(CF2-CF2)p-(CH2-CH)q-

CH3

TFE Pr

FKM = Viton, etc.

-(CH2-CF2)l-(CF2-CF)m-

CF3

VdF HFP-(CF2-CF2)n-

TFE

Deterioration by basesPoorer electrical resistivity

AFLAS Has Multiple Advantages Over FKM

Automotive Fluids Resistance: AFLAS vs. FKM

Electrical Resistivity of AFLAS vs. Other Elastomers

150 200

Volume Resistivity（Ω･㎝）

1016 1015

Dielectric constant(1 kHz)

3 6

Dielectric strength（kV/mm）

23 16

FKM

1013

10

20

EPDM Silicone

1016 1016

2 4

40 25

AFLAS

AFLAS has both excellent electrical resistivity and heat resistance

Weight Reduction Concept for HEV / EV Cable

XL-PE: (150°C)AFLAS: (200°C)

Weight Reduction Concept: Cable Comparison

AFLAS Performance Over XL-PE Cable

Advantages of AFLAS cable concept:• Non-Flammable

• Weight Reduction

• Improved Flexibility

• Vibration Resistance

• Excellent Heat Resistance

• Superior Chemical resistance

Disadvantages of XL-PE material usage:• Filler added (lots of Mg(OH)2)• Stiff• Limited Heat Resistance

Thank you!

For more information:

www.agcchem.com

800-424-7833

Twitter @AGCChem_Amer