DOWSIL TC-5080

Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

DOWSIL TC5080

Main features

  • Non-Curing Thermal Grease
  • Less Than 0.01% Oil Bleed After 24 Hours at 150 deg C
  • Screen, Stencil, or Needle Application

Product Description

DOWSIL TC-5080 Thermal Grease is a one-part, white, non-curing silicone thermal grease for heat-transfer interfaces between electronic components and heat sinks or chassis. The material can be screen printed, stencil printed, or needle dispensed and has a typical viscosity of 836,000 mPa s, extrusion rate of 1,053 g/min, and 4.5 mm slump. In service, typical thermal conductivity is 1 W/(m K), while oil bleed is less than 0.01% after 24 hours at 150 deg C. Typical electrical properties include 8.7 kV/mm dielectric strength and 2.9E+15 ohm*cm volume resistivity. Applications include lighting assemblies, telecommunications equipment, consumer electronics, power supplies and components, and transportation electronics.

Key features

  • No-Cure Thermal Grease: One-part silicone grease is installed as a thermal interface without a cure step.
  • Less Than 0.01% Oil Bleed: Typical oil-bleed result is measured after 24 hours at 150 deg C.
  • 1 W/(m K) Thermal Conductivity: Typical thermal-conductivity value applies to the non-curing grease.
Product Family

DOWSIL TC-5080

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
White
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
2.1
Physical Properties
Extrusion Rate
1053 g/min
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
836000 mPa.s
Thermal Properties
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
1 W/m.K
Electrical Properties
Dielectric Strength
Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material. Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property. As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow.
8.7 kV/mm
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
8.7 Ohms⋅cm

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
Viscosity836,000mPa sTypical
Extrusion rate1,053g/minTypical
Slump4.5mmTypical
Specific gravity2.1-Uncured; typical
Technical properties

In-use properties

Non-curing thermal grease in the installed interface.

PropertyValueUnitMethod / condition
Oil bleed<0.01%150 deg C for 24 h; typical
Thermal conductivity1W/(m K)Typical
Dielectric strength8.7kV/mmTypical
Volume resistivity2.9E+15ohm*cmTypical

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