Dow Corning® 340 Heat Sink Compound

n

White, non-flowing, highly filled compound, good thermal conductivity

n

Dow Corning® 340 Heat Sink Compound is thermal coupling of electrical/electronic devices to heat sinks. High thermal conductivity; low bleed; stable at high temperatures.

n

Primary Use: Thermal coupling of electrical/electronic devices to heat sinks.

n

Physical Form: White, grease-like silicone heavily filled with heat-conductive metal oxides.

n

Temperature Range: From -40 to 390°F (-40 to 199°C).

n

Application: Applied to the base and mounting studs of transistors, diodes and siliconcontrolled rectifiers; thermal coupler for many heat sink devices; high-voltage coronasuppressant; nonflammable coating in flyback transformer connections in TV sets.

n

Container Sizes: Tubes, cartridges, pails and drums.

n nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Typical Properties
Color	White
Nonflowable
Shelf Life	= 1800 Days
Specific Gravity @ 25C	= 2.1
Thermal Conductivity	= 0.67 Watts per meter K
Thickening System	Metal Oxide
Viscosity	= 542000 mPa.s
Worked Penetration	= 290 mm/10

nnn