T-PAD300 has an ideal filler blend that gives it a low-modulus characteristic that maintains optimal thermal performance yet still allows for easy handling.The natural tack on both sides of the material allows for good compliance to adjacent surfaces of components, minimizing interfacial resistance. Note: Resultant thickness is defined as the final gap thickness of the application.

Thickness vs. Thermal Resistance
Gap Pad 1500

Thermal Resistance (C-in2/W)


Thermally Conductive, Un-Reinforced Gap Filling Material

T-PAD300
PROPERTY	IMPERIAL VALUE	METRIC VALUE	TEST METHOD
Color	Black	Black	Visual
Reinforcement Carrier	—	—	—
Thickness (inch) / (mm)	0.020 to 0.200	0.508 to 5.080	ASTM D374
Inherent Surface Tack (1- or 2-sided)	2	2	—
Density (g/cc)	2.1	2.1	ASTM D792
Heat Capacity (J/g-K)	1.0	1.0	ASTM E1269
Hardness, Bulk Rubber (Shore 00) (1)	40	40	ASTM D2240
Young’s Modulus (psi) / (kPa) (2)	45	310	ASTM D575
Continuous Use Temp (°F) / (°C)	-76 to 392	-60 to 200	—
ELECTRICAL
Dielectric Breakdown Voltage (Vac)	>6000	>6000	ASTM D149
Dielectric Constant (1000 Hz)	5.5	5.5	ASTM D150
Volume Resistivity (Ohm-meter)	10“	10“	ASTM D257
Flame Rating	V-O	V-O	U.L. 94
THERMAL
Thermal Conductivity (W/m-K)	1.5	1.5	ASTM D5470

1) Thirty second delay value Shore 00 hardness scale.
2) Young´s Modulus, calculated using 0.01 in/min. step rate of strain with a sample size of 0.79 inch2. For more information on Gap Pad
modulus, refer to Bergquist Application Note #116.

Typical Applications Include:
• Telecommunications
• Computer and peripherals
• Power conversion
• RDRAM™ memory modules / chip scale packages
• Areas where heat needs to be transferred to a frame chassis or other type of heat spreader


Configurations Available:
• Sheet form and die-cut parts

Building a Part Number


Standard Options
NA = Selected standard option. If not selecting a standard
ard sheet size 8" x 16", or
00 = custom configuration
02 = Natural tack, both sides
Standard thicknesses available: 0.020",
0.040", 0.060",
0.080", 0.100", 0.125", 0.160", 0.200"
GP1500 = Gap Pad 1500 Material
Note: To build a part number, visit o.u r website at www.bergquistcompany.com.Gap Pad®: U.S. Patent 5,679,457 and other.