All statements, technical information and recommendations herein are based on tests we believe to be reliable, and
THE FOLLOWING IS MADE IN LIEU OF ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED
WARRANTIES OF MARKETABILITY AND FITNESS FOR PURPOSE. Sellers’ and manufacturers’ only obligation shall be to
replace such quantity of the product proved to be defective. Before using, user shall determine the suitability of the product
for its intended use, and the user assumes all risks and liability whatsoever in connection therewith. NEITHER SELLER NOR
MANUFACTURER SHALL BE LIABLE EITHER IN TORT OR IN CONTRACT FOR ANY LOSS OR DAMAGE, DIRECT,
INCIDENTAL, OR CONSEQUENTIAL, INCLUDING LOSS OF PROFITS OR REVENUE ARISING OUT OF THE USE OR
THE INABILITY TO USE A PRODUCT. No statement, purchase order or recommendations by seller or purchaser not
contained herein shall have any force or effect unless in an agreement signed by the officers of the seller and manufacturer.
PDS_GP_1500R_0711
Gap Pad
®
1500R
Thermally Conductive, Reinforced Gap Filling Material
www.bergquistcompany.com
The Bergquist Company -
North American Headquarters
18930 West 78th Street
Chanhassen, MN 55317
Phone: 800-347-4572
Fax: 952-835-0430
The Bergquist Company -
European Headquarters
Netherlands
Phone: 31-35-5380684
Fax: 31-35-5380295
The Bergquist Company -
Asia Headquarters
Hong Kong
Phone: 852-2690-9296
Fax: 852-2690-2344
Features and Benefits
• Thermal conductivity: 1.5 W/m-K
• Fiberglass reinforced for puncture, shear
and tear resistance
• Easy release construction
• Electrically isolating
Gap Pad 1500R has the same highly
conformable, low-modulus polymer as the
standard Gap Pad 1500.The fiberglass
reinforcement allows for easy material handling
and enhances puncture, shear and tear
resistance.The natural tack on both sides of
the material allows for good compliance to
mating surfaces of components, further
reducing thermal resistance.
Note: Resultant thickness is defined as the final gap
thickness of the application.
0.25 0.30 0.40 0.35 0.50 0.45 0.55
20
18
16
14
12
10
Thickness vs. Thermal Resistance
Gap Pad 1500R
Thermal Resistance (C-in
2
/W)
Resultant Thickness (mils)
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, die-cut parts, and roll form (converted or unconverted)
Building a Part Number Standard Options
Section A
Section B
Section C
Section D
Section E
NA = Selected standard option. If not selecting a standard
option, insert company name, drawing number, and
revision level.
GP1500R = Gap Pad 1500R Material
GP1500R 0.020 02 00 ACME10256 Rev. A
Note: To build a part number, visit our website at www.bergquistcompany.com.
Standard thicknesses available: 0.010", 0.015", 0.020"
02 = Natural tack, both sides
0816 = Standard sheet size 8" x 16", or
00 = custom configuration
––––
TYPICAL PROPERTIES OF GAP PAD 1500R
PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD
Color Black Black Visual
Reinforcement Carrier Fiberglass Fiberglass —
Thickness (inch) / (mm) 0.010 to 0.020 0.254 to 0.508 ASTM D374
Inherent Surface Tack (1 side) 2 2 —
Density (Bulk Rubber) (g/cc) 2.1 2.1 ASTM D792
Heat Capacity (J/g-K) 1.3 1.3 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) 6.0 6.0 ASTM D150
Volume Resistivity (Ohm-meter) 10
11
10
11
ASTM D257
Flame Rating V-O V-O U.L. 94
THERMAL
Thermal Conductivity (W/m-K) 1.5 1.5 ASTM D5470
THERMAL PERFORMANCE vs. STRAIN
Deflection (% strain) 10 20 30
Thermal Impedance (°C-in
2
/W) 0.020" (3) 1.07 0.88 0.82
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 inch
2
. 3) The ASTM D5470 test fixture was used.The recorded value includes interfacial ther-
mal resistance. These values are provided for reference only. Actual application performance is directly related to the
surface roughness, flatness and pressure applied.
