• Thermal Conductivity: 1.0 W/m-K
• Electromagnetic Interference (EMI) absorbing
• Highly conformable, low hardness
• Fiberglass reinforced for puncture, shear
and tear resistance
• Electrically isolating
Features and Benefits
Thermally Conductive, Conformable EMI Absorbing Material
PROPERTY
Color
Gap Pad
®
EMI 1.0
METRIC VALUE
Black
0.508 to 3.175
2.4
1.3
-60 to 200
>1700
V-O
1.0
10
1.53
10
10
6.0
69
5
1
Fiberglass
TEST METHOD
Visual
ASTM D374
ASTM E1269
ASTM D575
—
ASTM D149
ASTM D150
ASTM D257
U.L. 94
ASTM D5470
20
1.40
dB/inch
-7
-14
30
1.25
dB/cm
-2.8
-5.5
ASTM D792
—
—
TYPICAL PROPERTIES OF GAP PAD EMI 1.0
IMPERIAL VALUE
Black
0.020 to 0.125
2.4
1.3
-76 to 392
>1700
V-O
1.0
10
10
6.0
10
5
1
Fiberglass
Reinforcement Carrier
Inherent Surface Tack
Heat Capacity (J/g-K)
Thickness (inch) / (mm)
Density (Bulk Rubber) (g/cc)
Hardness (Bulk Rubber) (Shore 00) (1)
Young's Modulus (psi) / (kPa) (2)
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
Dielectric Constant (1000 Hz)
Flame Rating
Volume Resistivity (Ohm-meter)
Continuous Use Temp (°F) / (°C)
ASTM D2240
Gap Pad EMI 1.0 is a highly conformable,
combination gap filling material offering both
thermal conductivity performance and
Electromagnetic Energy absorption (cavity
resonances and/or cross-talk causing
Electromagnetic Interference) at frequencies
of 1GHz and higher.
®
THERMAL
Thermal Conductivity (W/m-K) (3)
THERMAL PERFORMANCE vs. STRAIN
EMI PERFORMANCE (ASTM D-5568-01 TEST METHOD)
Deflection (% strain)
Thermal Impedance (°C-in
2
/W) 0.040"
Absorption (4)
@ 2.4 GHz
Gap Pad
®
EMI 1.0 has an inherent, natural tack
on one side of the material eliminating the
need for thermally-impeding adhesive layers
and allowing improved handling during
placement and assembly. The other side is
tack-free, again enhancing handling and rework,
if required. Gap Pad
®
EMI 1.0 is supplied with a
protective liner on the material’s tacky side.
-6
-10
-12
-14
-16
0
1
2
3
4
5
Frequency (GHz)
6
7
8
-8
dB
Resultant Thickness (mils)
The material offers EMI suppression and
1.0 W/m-K thermal conductivity performance
with low assembly stress. The soft nature of
the material enhances wet-out at the
interface resulting in better thermal
performance than harder materials with a
similar performance rating.
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
.
Relaxation stress @ 40 mil.
3) The ASTM D5470 test fixture was used. The recorded value includes interfacial thermal resistance. These values are
provided for reference only. Actual application performance is directly related to the surface roughness, flatness and
pressure applied.
4) Based on waveguide testing with 60 mil thickness testing.
0
Absorption and Reflection (60 mil)
Gap Pad EMI 1.0
@ 5 GHz
-2
-4
140
120
100
80
60
40
20
0
0
1.00
Thickness vs. Thermal Resistance
Gap Pad EMI 1.0
Building a Part Number
GPEMI1.0
–
0.020 – 01
– 0816 –
Section C
Section A
• Consumer electronics
• Telecommunications
Configurations Available:
• Sheet form and die-cut parts
• ASICs and DSPs
• PC applications
Section D
Typical Applications Include:
NA
Standard Options
0816 = Standard sheet size 8" x 16", or
00 = custom configuration
2.00
3.00
4.00
Thermal Resistance (C-in
2
/W)
5.00
6.00
Section B
Section E
NA = Selected standard option. If not selecting a standard
option, insert company name, drawing number, and
revision level.
01 = Natural tack, one side (With Fiberglass)
Standard thicknesses available: 0.020", 0.040", 0.060",
0.080", 0.100", 0.125"
Note: To build a part number, visit our website at www.bergquistcompany.com.
GPEMI1.0 = Gap Pad EMI 1.0 Material with fiberglass
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
www.bergquistcompany.com
The Bergquist Company -
Asia Headquarters
Hong Kong
Ph: 852-2690-9296
Fax: 852-2690-3408
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_EMI 1_0515
