PES Polyethersulfone Technical Data
Unit ASTM Test Result

Mechanical

Tensile Strength @yield

psi

D882

10,500

Elongation @break

%

D882

52

Tensile Modulus

psi

D882

-

Flexural Modulus

psi

D790

370,000

Tear Strength -

prop,

g/mil

D1004

96

Thermal

Continuous Use Temp.-UL

°F

-

356

Heat Deflection Temperature

@264 psi

°F

D648

383

Melt Temp.-DSC

°F

-

Glass Transition Temp.

°F

D3418

437

Flammability

UL Rating-UL94

-

-

-

L.0.1.

%

D2863

38

NBS Smoke

Dmax

E662

-

Electrical

Surface Resistivity

Ohms

D257

>101,

Dielectric Strength @.004"

V/mil

D149

4,600

Dielectric Constant

1 KHz

D150

3.5

Dissipation Factor

1 KHz

D150

0.011

Other

Specific Gravity

-

D792

1.37

Water Absorption

%/24 hr.

D570

0.7

Refractive Index

-

-

1.65

Haze

%

D1003

-

Area Factor

in2/Ib/mil

-

20,000