filled-polymer laminate, supplied on a

reinforcing mesh for added electrical

isolation, easy material handling and

enhanced puncture, shear and tear

reinforcement layer on the dark gold

side of the material that assists in burn-in

and rework processes while the light gold

and soft side of the material allows for

added compliance.

Note: To build a part number, visit our

website at www.bergquistcompany.com.

TYPICAL APPLICATIONS INCLUDE

• Computer and peripherals

• Telecommunications

• Heat pipe assemblies

• CDROM/DVD cooling

• Between CPU and heat spreader

• Area where heat needs to be transferred to a frame, chassis or other

type of heat spreader

CONFIGURATIONS AVAILABLE

• Sheet form, die-cut parts and roll form (converted or unconverted)

PDS_GP_A3000_0711

FEATURES AND BENEFITS

• Thermal conductivity: 2.6 W/m-K

• Fiberglass reinforced for puncture,

shear and tear resistance

• Reduced tack on one side to aid in

application assembly

• Electrically isolating

PRODUCT DESCRIPTION

Thermally Conductive, Reinforced

Gap Filling Material

July 2011

PROPERTY

IMPERIAL VALUE

METRIC VALUE

TEST METHOD

Color

Gold

Gold

Visual

Reinforcement Carrier

Fiberglass

Fiberglass

—

Thickness (inch) / (mm)

0.015 to 0.125

0.381 to 3.175

ASTM D374

Inherent Surface Tack (1 side)

1

1

—

Density (Bulk Rubber) (g/cc)

3.2

3.2

ASTM D792

Heat Capacity (J/g-K)

1.0

1.0

ASTM E1269

Hardness (BulkRubber) (Shore 00) (1)

80

80

ASTM D2240

Young's Modulus (psi) / (kPa) (2)

50

344

ASTM D575

Continuous Use Temp (°F) / (°C)

-76 to 392

-60 to 200

—

ELECTRICAL

Dielectric Breakdown Voltage (Vac)

>5000

>5000

ASTM D149

Dielectric Constant (1000 Hz)

7.0

7.0

ASTM D150

Volume Resistivity (Ohm-meter)

ASTM D257

Flame Rating

V-O

V-O

U.L. 94

THERMAL

Thermal Conductivity (W/m-K)

2.6

2.6

ASTM D5470

THERMAL PERFORMANCE vs. STRAIN

Deflection (% strain)

10

20

30

0.78

0.73

0.68

1) Thirty second delay value Shore 00 hardness scale. 2)Young’s Modulus, calculated using 0.01 in/min.step rate of strain

mal resistance. These values are provided for reference only. Actual application performance is directly related to the

surface roughness, flatness and pressure applied.

TYPICAL PROPERTIES OF GAP PAD A3000

0.10 0.30 0.50 0.70

1.10

0.90

1.50

1.30

1.70

125

115

95

75

55

35

Thickness vs. Thermal Resistance

Gap Pad A3000