Technical Data Sheet
LOCTITE TCF 4000 PXF
April-2014
PRODUCT DESCRIPTION
LOCTITE TCF 4000 PXF provides the following product
characteristics:
Technology Phase Change
Appearance Gray
Application Method Manual application
Product Benefits ● Low thermal resistance
● Non silicone
● No pump-out, dry-out or pull-out
Phase change temperature 45 °C
Application Thermal management
Typical Assembly
Applications
Thermal grease replacement in
computing applications, Lidded and
bare die processor applications and
Used between any heat generating
electrically isolated component and a
heat sink
LOCTITE TCF 4000 PXF is a reworkable phase change thermal
interface material suitable for use between a heat sink and variety heat
dissipating components. The material flows at the phase change
temperature, conforming to the surface features of the components.
Upon flow, air is expelled from the interface, reducing thermal
impedance, performing as a highly efficient thermal transfer material.
Custom parts are also available upon request with low cost tooling.
TYPICAL PROPERTIES
PXF-8 with
Volumetric Expansion on phase change, % 15
Thermal Impedance , ASTM D5470:
@ 20 psi, ºC-in2/W 0.015
@ 80 psi, ºC-in2/W 0.008
Compound Thickness Before Phase Change:
Inches 0.008
(mm) (0.2)
Viscosity Above Phase Change Temp thixotropic
PXF-16
Volumetric Expansion on phase change, % 15
Thermal Impedance , ASTM D5470:
@ 20 psi, ºC-in2/W 0.023
@ 80 psi, ºC-in2/W 0.019
Compound Thickness Before Phase Change:
Inches 0.016
(mm) (0.4)
Viscosity Above Phase Change Temp thixotropic
THERMAL RESISTANCE vs. MOUNTING PRESSURE
GENERAL INFORMATION
For safe handling information on this product, consult the
Material Safety Data Sheet, (MSDS).
DIRECTIONS FOR USE
1. This product is packaged as a free-standing film between two
release liners and is supplied as a die cut preform to match a
wide variety of applications.
2. Currently supplied in two compound thicknesses, multiple
thicknesses will soon be available to match surface finishes and
flatness considerations in the interface area.
3. LOCTITE TCF 4000 PXF is completely reworkable without
solvents and is easier to remove than previous formulations.
4. If a clean surface is required, any compound present can easily
be removed with mineral spirits. No silicones are utilized in the
formulation of the phase change compound.
5. Unlike previous versions of Powerstrate, LOCTITE TCF 4000
PXF does not require adhesive edge strips for heatsink attach
applications. The "tacky" nature of the product allows for it to
naturally adhere to the heatsink surface.
TDS LOCTITE TCF 4000 PXF, April-2014
Storage
Store product in the unopened container in a dry location.
Storage information may be indicated on the product container
labeling.
Optimal Storage: 23 °C. Storage greater than 40 °C can
adversely affect product properties.
Material removed from containers may be contaminated during
use. Do not return product to the original container. Henkel
Corporation cannot assume responsibility for product which
has been contaminated or stored under conditions other than
those previously indicated. If additional information is required,
please contact your local Technical Service Center or
Customer Service Representative.
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.
Conversions
(°C x 1.8) + 32 = °F
kV/mm x 25.4 = V/mil
mm / 25.4 = inches
N x 0.225 = lb
N/mm x 5.71 = lb/in
N/mm² x 145 = psi
MPa = N/mm²
MPa x 145 = psi
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
Note:
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, Resin Technology
Group, Inc., 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 N/A
Americas
+1.888.943.6535
Europe
+32.1457.5611
Asia
+86.21.3898.4800
For the most direct access to local sales and technical support visit: www.henkel.com/electronics
