Item # 570, THERM-A-GAP™ - Thermally Conductive Gap Filler Pads On Robert McKeown Co., Inc.

THERM-A-GAP™ gap-filler sheets and pads offer excellent thermal properties and highest conformability at low clamping forces.

Features/Benefits

Ultra low deflection force

High thermal conductivity

High tack surface reduces contact resistance

"A" version offers high strength acrylic PSA for permanent attachment

UL recognized V-0 flammability

RoHS compliant

All products are available on aluminum foil (A) or on "clean break" glass (G) fiber carrier. As with all previous Chomerics gapfillers, the "A"more

Unit of Measure

Specifications

Test Method Color	N/A Visual
Color	N/A Blue
Carrier	N/A Aluminum foil - with PSA Woven glass - no PSA
Test Method Thicknesses	N/A ASTM D374
Standard Thickness¹	N/A 0.5–5.0 mm0.020–0.200 in
Test Method Specific Gravity	N/A ASTM D792
Specific Gravity	N/A 2.2
Test Method Hardness	N/A ASTM D2240
Hardness, Shore 00	N/A 25
Test Method Extractable Silicone	N/A Chomerics
Extractable Silicone	N/A 10 %
Test Method Percent Deflection at Various Pressures	N/A ASTM C165 MOD (0.125 in “G” Type, 0.50 in dia. probe, 0.025 in/min rate)
Percent Deflection at Various Pressures (0.125 in) at 34 kPa (5 psi) Deflected	N/A 10 %
Percent Deflection at Various Pressures (0.125 in) at 69 kPa (10 psi) Deflected	N/A 15 %
Percent Deflection at Various Pressures (0.125 in) at 172 kPa (25 psi) Deflected	N/A 25 %
Percent Deflection at Various Pressures (0.125 in) at 345 kPa (50 psi) Deflected	N/A 35 %
Operating Temperature Range	N/A –55 to 200 ºC–67 to 392 ºF
Test Method Thermal Impedance	N/A ASTM D5470
Thermal Impedance at 10 psi, at 1mm Thickness, G Version	N/A 9.1 ºC-cm²/W1.4 ºC-in²/W
Test Method Thermal Conductivity	N/A ASTM D5470
Thermal Conductivity	N/A 1.5 W/m·K
Test Method Heat Capacity	N/A ASTM E1269
Heat Capacity	N/A 1 J/g-K
Test Method Coefficient of Thermal Expansion	N/A ASTM E831
Coefficient of Thermal Expansion	N/A 250 ppm/K
Test Method Dielectric Strength	N/A ASTM D149
Dielectric Strength	N/A 8 KVac/mm200 Vac/mil
Test Method Volume Resistivity	N/A ASTM D257
Volume Resistivity	N/A 10¹⁴ O/cm
Test Method Dielectric Constant	N/A ASTM D150
Dielectric Constant at 1000 kHz	N/A 6.5
Test Method Dissipation Factor	N/A Chomerics Test
Dissipation Factor at 1000 kHz	N/A 0.013
Test Method Flammability Rating	N/A UL 94
Flammability Rating	N/A V-0
Test Method RoHS Compliant	N/A Chomeric Certification
RoHS Compliant	N/A Yes
Test Method Outgassing	N/A ASTM E595
Outgassing TML	N/A 0.35 %
Outgassing CVCM	N/A 0.09 %
Test Method Shelf Life	N/A Chomerics
Shelf Life, Months from Date of Shipment G	N/A 24
Shelf Life, Months from Date of Shipment A	N/A 18

¹ Thickness tolerance, mm(in.) ±10 % nominal thickness at 2.5 mm (100 mil) or less; ± 0.25 mm (10 mil) at nominal thickness greater than 2.5 mm (100 mil). Custom thicknesses may be available upon request.

Specifications

Test Method Color

Color

Carrier

Test Method Thicknesses

Test Method Specific Gravity

Specific Gravity

Test Method Hardness

Hardness, Shore 00

Test Method Extractable Silicone

Extractable Silicone

Test Method Percent Deflection at Various Pressures

Percent Deflection at Various Pressures (0.125 in) at 34 kPa (5 psi) Deflected

Percent Deflection at Various Pressures (0.125 in) at 69 kPa (10 psi) Deflected

Percent Deflection at Various Pressures (0.125 in) at 172 kPa (25 psi) Deflected

Percent Deflection at Various Pressures (0.125 in) at 345 kPa (50 psi) Deflected

Operating Temperature Range

Test Method Thermal Impedance

Thermal Impedance at 10 psi, at 1mm Thickness, G Version

Test Method Thermal Conductivity

Thermal Conductivity

Test Method Heat Capacity

Heat Capacity

Test Method Coefficient of Thermal Expansion

Coefficient of Thermal Expansion

Test Method Dielectric Strength

Dielectric Strength

Test Method Volume Resistivity

Volume Resistivity

Test Method Dielectric Constant

Dielectric Constant at 1000 kHz

Test Method Dissipation Factor

Dissipation Factor at 1000 kHz

Test Method Flammability Rating

Flammability Rating

Test Method RoHS Compliant

RoHS Compliant

Test Method Outgassing

Outgassing TML

Outgassing CVCM

Test Method Shelf Life

Shelf Life, Months from Date of Shipment G

Shelf Life, Months from Date of Shipment A