Technical Data Sheet
BERGQUIST BOND PLY TBP 850
Known as BERGQUIST BOND-PLY 100
August-2021
PRODUCT DESCRIPTION
Thermally Conductive, Fiberglass Reinforced Pressure
Sensitive Adhesive Tape.
Technology
Appearance
Reinforcement Carrier
Total Thickness ,
ASTM D374
Application
Acrylic
White
Fiberglass
0.127, 0.203, 0.279 mm
Thermal management,
Thermally conductive adhesive
Operating Temperature -40 to 120ºC
Range
FEATURES AND BENEFITS
● Thermal impedance: 0.52°C.in²/W @ 50 psi
● High bond strength to a variety of surfaces
● Double-sided, pressure sensitive adhesive tape
● High performance, thermally conductive acrylic
adhesive
● Can be used as an alternate of heat-cure adhesive,
screw mounting or clip mounting
TYPICAL APPLICATIONS
● Mount heat sink onto BGA graphic processor or drive
processor
● Mount heat spreader onto power converter PCB or onto
motor control PCB
SHELF LIFE
The double-sided, pressure sensitive adhesive used in
LOCTITE BERGQUIST BOND PLY® products requires the
use of dual liners to protect the surfaces from contaminants.
The recommended shelf life for BERGQUIST BOND PLY
TBP 850 is 6 months at a maximum continuous storage
temperature of 35°C or 3-months at a maximum continuous
storage temperature of 45°C, for maintenance of controlled
adhesion to the liner.
The shelf life of the Bond Ply material, without consideration
of liner adhesion (which is often not critical for manual
assembly processing), is recommended at 12 months from
date of manufacture at a maximum continuous storage
temperature of 60°C.
TYPICAL PROPERTIES
Physical Properties
Temperature Coefficient of Resistance, ºC
200
Elongation , 45º to warp and fill, ASTM D412,% 70
Coefficient of Thermal Expansion, ASTM D 3386 325
, ppm
Glass Transition Temperature, ASTM D1356, °C -30
Flammability Rating, UL 94
V-0
Tensile Strength, ASTM D412
MPa
6
(psi)
(900)
Adhesion Properties
Lap Shear Strength, ASTM D1002:
@ 25°C
After 5 hours @ 100ºC
After 2 minutes @ 200ºC
MPa
(psi)
MPa
(psi)
MPa
(psi)
0.7
(100)
1.4
(200)
1.4
(200)
Static Dead Weight Shear Strength, PSTC#7, ºC 150
Electrical Properties
Dielectric Breakdown Voltage, ASTM D149:
@ 0.005" (Vac)
@ 0.008" (Vac)
@ 0.011" (Vac)
3,000
6,000
8,500
Thermal Properties
Thermal Conductivity , ASTM D5470, W/(m-K)
0.8
Thermal Impedance vs. Pressure
TO-220 Thermal Performance, ºC/W:
@ 0.005":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
5.17
4.87
4.49
4.18
4.1
TDS BERGQUIST BOND PLY TBP 850, August-2021
@ 0.008":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
5.4
5.35
5.28
5.22
5.2
@ 0.011":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
6.59
6.51
6.51
6.5
6.4
Thermal Impedance, ASTM D5470, ºC-in2/W (1):
@ 0.005":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
0.56
0.54
0.52
0.5
0.5
@ 0.008":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
0.82
0.8
0.78
0.77
0.75
@ 0.011":
@ 10 psi
@ 25 psi
@ 50 psi
@ 100 psi
@ 200 psi
1.03
1.02
1.01
1.0
0.99
I) 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.
GENERAL INFORMATION
For safe handling information on this product, consult the
Safety Data Sheet, (SDS).
Not for product specifications
The technical data contained herein are intended as
reference only. Please contact your local quality department
for assistance and recommendations on specifications for
this product.
CONFIGURATIONS AVAILABLE
BERGQUIST BOND PLY TBP 850 are supplied in:
● Sheet form
● Roll form
● Die-Cut parts
Conversions
(°C x 1.8) + 32 = °F
kV/mm x 25.4 = V/mil
mm / 25.4 = inches
N x 0.225 = lb/F
N/mm x 5.71 = lb/in
psi x 145 = N/mm²
MPa = N/mm²
N·m x 8.851 = lb·in
N·m x 0.738 = lb·ft
N·mm x 0.142 = oz·in
mPa·s = cP
Disclaimer
The information provided in this Technical Data Sheet (TDS) including the
recommendations for use and application of the product are based on our
knowledge and experience of the product as at the date of this TDS. The
product can have a variety of different applications as well as differing
application and working conditions in your environment that are beyond our
control. Henkel is, therefore, not liable for the suitability of our product for the
production processes and conditions in respect of which you use them, as well
as the intended applications and results. We strongly recommend that you
carry out your own prior trials to confirm such suitability of our product. Any
liability in respect of the information in the Technical Data Sheet or any other
written or oral recommendation(s) regarding the concerned product is
excluded, except if otherwise explicitly agreed and except in relation to death
or personal injury caused by our negligence and any liability under any
applicable mandatory product liability law.
In case products are delivered by Henkel Belgium NV, Henkel Electronic
Materials NV, Henkel Nederland BV, Henkel Technologies France SAS
and Henkel France SA please additionally note the following:
In case Henkel would be nevertheless held liable, on whatever legal ground,
Henkel’s liability will in no event exceed the amount of the concerned delivery.
In case products are delivered by Henkel Colombiana, S.A.S. the
following disclaimer is applicable:
The information provided in this Technical Data Sheet (TDS) including the
recommendations for use and application of the product are based on our
knowledge and experience of the product as at the date of this TDS. Henkel
is, therefore, not liable for the suitability of our product for the production
processes and conditions in respect of which you use them, as well as the
intended applications and results. We strongly recommend that you carry out
your own prior trials to confirm such suitability of our product.
Any liability in respect of the information in the Technical Data Sheet or any
other written or oral recommendation(s) regarding the concerned product is
excluded, except if otherwise explicitly agreed and except in relation to death
or personal injury caused by our negligence and any liability under any
applicable mandatory product liability law.
In case products are delivered by Henkel Corporation, or Henkel Canada
Corporation, the following disclaimer is applicable:
The data contained herein are furnished for information only and are believed
to be reliable. We cannot assume responsibility for the results obtained by
others over whose methods we have no control. It is the user's responsibility
to determine suitability for the user's purpose of any production methods
mentioned herein and to adopt such precautions as may be advisable for the
protection of property and of persons against any hazards that may be
involved in the handling and use thereof. In light of the foregoing, Henkel
Corporation specifically disclaims all warranties expressed or implied,
including warranties of merchantability or fitness for a particular
purpose, arising from sale or use of Henkel Corporation’s products.
Henkel Corporation specifically disclaims any liability for consequential
or incidental damages of any kind, including lost profits. The discussion
herein of various processes or compositions is not to be interpreted as
representation that they are free from domination of patents owned by others
or as a license under any Henkel Corporation patents that may cover such
processes or compositions. We recommend that each prospective user test
his proposed application before repetitive use, using this data as a guide. This
product may be covered by one or more United States or foreign patents or
patent applications.
Trademark usage
Except as otherwise noted, all trademarks in this document are trademarks of
Henkel Corporation in the U.S. and elsewhere. ® denotes a trademark
registered in the U.S. Patent and Trademark Office.
Reference 3
For the most direct access to local sales and technical support visit: https://www.henkel-adhesives.com/