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CHO-THERM® HIGH-POWER THERMAL INSULATOR PADS are thermally conductive materials designed for use where the highest possible thermal, dielectric, and mechanical properties are required.

Fiberglass cloth reinforcement strengthens CHO-THERM® pads against tear, cut-through and punctures.

These materials are available in sheet form and die-cut configurations. An optional adhesive layer (with PSA) is available on one or two sides. With a proven track record spanning several decades in multiplemore
Unit of Measure

Specifications

Color

White

Reinforcement Carrier

Fiberglass

Test Method Thicknesses

ASTM D374

Thickness

0.38 mm0.015 in

Thickness Tolerance

± 0.050 mm± 0.002 in

Test Method Specific Gravity

ASTM D792

Specific Gravity

1.55

Test Method Hardness

ASTM D2240

Hardness, Shore A

80

Operating Temperature Range

–40 to 200 ºC–40 to 392 ºF

Test Method Thermal Impedance

ASTM D5470

Thermal Impedance

1.48 ºC-cm²/W0.23 ºC-in²/W

Test Method Apparen Thermal Conductivity

ASTM D5470

Apparen Thermal Conductivity

2.6 W/m·K

Test Method Heat Capacity

ASTM E1269

Heat Capacity

1.0 J/g-ºC

Test Method Coefficient of Thermal Expansion

ASTM E831

Coefficient of Thermal Expansion

250 ppm/K

Test Method Volume Resistivity Dry

ASTM D149

Volume Resistivity Dry

1016 O/cm

Test Method Voltage Breakdown Dry

ASTM D149

Voltage Breakdown Dry

4000 Vac

Test Method Tensile Strength

Chomerics

Tensile Strength

20.7 MPa3000 psi

Test Method Tear Strength

Chomerics

Tear Strength

70 kN/m400 lb/in

Test Method Elongation

Chomerics

Elongation

15 %

Test Method Dielectric Constant

ASTM D150

Dielectric Constant at 1000 kHz

3.6

Test Method Dissipation Factor

Chomerics Test

Dissipation Factor at 1000 kHz

0.007

Test Method Flammability Rating

UL 94

Flammability Rating

HB

Test Method RoHS Compliant

Chomeric Certification

RoHS Compliant

Yes

Test Method Outgassing

ASTM E595

Outgassing TML

0.76 %

Outgassing CVCM

0.07 %

Test Method Shelf Life

Chomerics

Shelf Life, Months from Dry Pad

24

Shelf Life, Months from Dry Pad with PSA

18