Poly-Pad
®
K-10
Polyester-Based,Thermally Conductive Insulation Material
Features and Benefits
• Thermal impedance:
0.60°C-in2/W (@50 psi)
• Polyester based
• For applications requiring non-silicone
conformal coatings
• Designed for silicone-sensitive applications
• Excellent dielectric strength and
thermal performance
Poly-Pad K-10 is a composite of film coated
with a polyester resin.The material offers
superior thermal performance for your most
critical applications with a thermal resistance
of 0.2°C-in2/W as well as excellent dielectric
strength.
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.
Typical Applications Include:
• Power supplies
• Motor controls
• Power semiconductors
Configurations Available:
• Sheet form, die-cut parts and roll form
• With or without pressure sensitive adhesive
Building a Part Number Standard Options
Sil-Pad®: U.S. Patents 4,574,879; 4,602,125; 4,602,678; 4,685,987; 4,842,911 and others
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.
PPK10 = Poly-Pad K-10 Material
PPK10 0.006 AC 11.512 NA
Note: To build a part number, visit our website at www.bergquistcompany.com.
Standard thicknesses available: 0.006"
AC = Adhesive, one side
00 = No adhesive
_ _ _ = Standard configuration dash number,
11.512 = 11.5" x 12" sheets, 11.5/250 = 11.5" x 250' rolls, or
00 = custom configuration
– – – –
TYPICAL PROPERTIES OF POLY-PAD K-10
PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD
Color Yellow Yellow Visual
Reinforcement Carrier Polyimide Polyimide —
Thickness (inch) / (mm) 0.006 0.152 ASTM D374
Hardness (Shore A) 90 90 ASTM D2240
Breaking Strength (lbs/inch) / (kN/m) 30 5 ASTM D1458
Elongation (%) 40 40 ASTM D412
Tensile Strength (psi) / (MPa) 5000 34 ASTM D412
Continuous Use Temp (°F) / (°C) -4 to 302 -20 to 150 —
ELECTRICAL
Dielectric Breakdown Voltage (Vac) 6000 6000 ASTM D149
Dielectric Constant (1000 Hz) 3.7 3.7 ASTM D150
Volume Resistivity (Ohm-meter) 1012 1012 ASTM D257
Flame Rating V-O V-O U.L.94
THERMAL
Thermal Conductivity (W/m-K) 1.3 1.3 ASTM D5470
THERMAL PERFORMANCE vs PRESSURE
Pressure (psi) 10 25 50 100 200
TO-220 Thermal Performance (°C/W) 3.76 3.35 2.75 2.30 2.03
Thermal Impedance (°C-in2/W) (1) 1.04 0.80 0.60 0.43 0.30
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.
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 K10_1113
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: 852-2690-3408
