DOWSIL™ 340 White Heat Sink Compound Lubricant/Grease - 142 Gram Tube

DOWSIL™ 340 White Heat Sink Compound Lubricant/Grease - 142 Gram Tube
Our Part #: SGP16176
Manufacture Part #: 1446622
Our Price: $49.28
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Please note: such orders are funneled into our NY warehouse and may take an extra 7-10 days to process. The benefit to this: You get one package shipped which reduces added taxes and duties that may be incurred from multiple shipments.

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SkyGeek Shelf-Life Policy

Warning: This product may contain a chemical known by the State of California to cause health issues. Details found here www.p65warnings.ca.gov

UN Number: UN3077

UN Class: 9

Dow Corning 340 Heat Sink Compound from SkyGeek is designed to penetrate deeply to lubricate your aircraft’s moving parts. Heat Sink 340 is a grease-like silicone fluid that is thickened with metal oxide fillers for better performance and protection in high-heat situations. It promotes a high level of thermal conductivity during flight and is stable at high temperatures. It also has a low bleed rate. Dow Corning 340 lubricant is best used applied to the base and mounting studs of transistors, diodes and silicon-controlled rectifiers. The silicone lubricant also serves as a highly effective thermal coupler for many heat sink devices where it helps maintain a positive heat sink seal which improves heat transfer from the electrical/electronic device to the heat sink or chassis.

Use Dow Corning 340 Heat Sink Lubricant in a variety of aerospace and mechanical applications. The formula is suitable for a wide range of aircraft engines where heat sink properties are required. It can also be used as a high-voltage corona suppressant, nonflammable coating in connections for flyback transformers and TV sets and similar applications. The compound resist changes in consistency at temperatures up to approximately 350°F (177°C) for more reliable performance.

Dow Corning 340 Heat Sink Compound is sold in a five-ounce (142 gram) tube and is easy to apply. The versatile lubricant has a shelf life of 60 months from date of manufacture, so you’ll have plenty of time to use it up. Refer to the product packaging for "Use By" date. Order Dow Corning 340 Silicone Heat Sink Compound from SkyGeek and enjoy competitive pricing along with fast shipping on this versatile lubricant product. The grease lubricant is sold in a convenient five-ounce size and can be shipped same-day for a small additional charge. For those requiring documentation, a manufacturer's certification may be added to your order. Want to stock up? Quantity discounts are also available on this lubricant, so pick up one for yourself and one for every bench in your hangar.

Features

  • High thermal conductivity
  • Low bleed
  • Stable at high temperatures Typical Properties

    Method Test Result
    Color White
    ASTM D 217 Consistency, Penetration
    unworked
    worked 60 strokes
    worked 100,000 strokes

    300
    275
    245
    Fed. Std. 791, Method 321.2 Bleed after 24 hr at 392°F (200°C) 0.05%
    Fed. Std. 791, Method 321.2 Evaporation after 24 hr at 392°F (200°C) 0.5%
    ASTM D 2265 Drop Point 570°F (300°C)
    ASTM D 1475 Specific Gravity at 77°F (25°C) 2.1
    CTM* 0069 Thermal Conductivity, K Factor 0.0014 cal/sec-cm-°C
    ASTM D 149 Dielectric Strength** 210 volts/mil
    ASTM D 495 Arc Resistance 165 seconds
    ASTM D 150 Dielectric Constant
    at 100 Hz
    at 100 kHz

    5
    5
    ASTM D 150 Dissipation Factor
    at 100 Hz
    at 100 kHz

    0.01
    0.02
    ASTM D 1169 Volume Resistivity 2 x 10^15 ohm-cm
    ASTM D 4049 Water Spray Off 1.3%

    *CTMs (Corporate Test Methods) correspond to standard ASTM tests in most instances.
    **Measured using a sample thickness of 50 mils.

    Downloads

    download icon Safety Data Sheet

  • Country of Origin
    United States
    Size
    142 gm
    Shipping Weight
    1.3 pounds
    ECCN
    EAR99
    Color Family
    White
    Manufacturer P/N
    DOWSIL 340
    Schedule B Code
    3824.90.9270
    Pack Quantity
    1
    Ship Dimensions
    7 x 2 x 2 inches
    Size
    142 Gram Tube
    Color
    White
    Alternate PN#s
    1446622, DC340 DC340-5OZ