Poly-Pad 400
®
Polyester-Based,Thermally Conductive Insulation Material
Features and Benefits
• Thermal impedance:
1.13°C-in
2
/W (@50 psi)
• Polyester based
• For applications requiring conformal
coatings
• Designed for silicone-sensitive standard
applications
PROPERTY
Color
Reinforcement Carrier
Thickness (inch) / (mm)
Hardness (Shore A)
Breaking Strength (lbs/inch)/(kN/m)
Elongation(% - 45° to Warp and Fill)
Tensile Strength (psi) / (MPa)
Continuous Use Temp (°F) / (°C)
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
Dielectric Constant (1000 Hz)
Volume Resistivity (Ohm-meter)
THERMAL
Thermal Conductivity (W/m-K)
Flame Rating
THERMAL PERFORMANCE vs PRESSURE
Pressure (psi)
TO-220 Thermal Performance (°C/W)
TYPICAL PROPERTIES OF POLY-PAD 400
IMPERIAL VALUE
Tan
Fiberglass
0.009
90
100
10
7000
-4 to 302
2500
5.5
10
11
METRIC VALUE
Tan
Fiberglass
0.229
90
18
10
48
-20 to 150
2500
5.5
10
11
TEST METHOD
Visual
—
ASTM D374
ASTM D2240
ASTM D1458
ASTM D412
ASTM D412
—
ASTM D149
ASTM D150
ASTM D257
ASTM D5470
U.L. 94
0.9
V-O
10
5.85
1.62
25
5.61
1.35
0.9
V-O
50
5.13
1.13
100
4.59
0.86
200
4.12
0.61
Poly-Pad 400 is a fiberglass-reinforced
insulator coated with a filled polyester resin.
Poly-Pad 400 is economical and designed for
most standard applications.
Polyester-based, thermally conductive insulators
from Bergquist provide a complete family of
materials for silicone-sensitive applications.
Poly-Pads are ideally suited for applications
requiring conformal coatings or applications
where silicone contamination is a concern
(telecomm and certain aerospace applications).
Poly-Pads are constructed with ceramic-filled
polyester resins coating either side of a fiber-
glass carrier or a film carrier.The Poly-Pad
family offers a complete range of performance
characteristics to match individual applications.
Thermal Impedance (°C-in /W) (1)
2
1) 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.
Typical Applications Include:
• Power supplies
• Automotive electronics
• Motor controls
• Power semiconductors
Configurations Available:
• Sheet form, die-cut parts and roll form
• With or without pressure sensitive adhesive
• We produce thousands of specials.Tooling charges vary depending on tolerances and the
complexity of the part.
Building a Part Number
PP400
–
0.009
– 00
– 1212 –
NA
Standard Options
Section E
NA = Selected standard option. If not selecting a standard
option, insert company name, drawing number, and
revision level.
_ _ _ = Standard configuration dash number,
1212 = 12" x 12" sheets, 12/250 = 12" x 250' rolls, or
00 = custom configuration
AC = Adhesive, one side
00 = No adhesive
Standard thicknesses available: 0.009"
PP400 = Poly-Pad 400 Material
Section A
Section B
Section C
Note: To build a part number, visit our website at www.bergquistcompany.com.
Sil-Pad
®
: U.S. Patents 4,574,879; 4,602,125; 4,602,678; 4,685,987; 4,842,911 and others
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 - Europe
Bramenberg 9a, 3755 BT Eemnes
Netherlands
Phone: 31-35-5380684
Fax: 31-35-5380295
The Bergquist Company - China
Rm. 7C, Aihe Mansion
No. 629 Ling Ling Road
Shanghai, China 200030
Ph: 86-21-6464-2206
Fax: 86-21-6464-2209
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_PP_400_0607
Section D
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