Dow Dowsil 92-009 Dispersion Coating

Dow Dowsil 92-009 Dispersion Coating Datasheet
  • Description for Dow Dowsil 92-009 Dispersion Coating

    A one-part, room temperature curing silicone rubber material.

    *See Terms of Use Below

    Brand Dowsil
    Application Type Dispersion Coating, Seal, Excellent release properties
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate 2024 Aluminum (primed)
    Industry Electrical, Radar antennae, Rockets, Undersides of aircraft, Vehicles orbiting in space, Engine cases, Steel cables, Fuel transfer lines, Aircraft, Vehicles orbiting in space, Structural members and undersides of aircraft
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Air-drying, Room temperature curing
    Cure Temperature (°C) 25
    Cure Time (min) 4,320
    Viscosity (cPs) 8,200
    Color Translucent
    Ozone Resistance Resists ozone
    Chemical Resistance Resists chemicals
    High Temperature Resistance (°C) <260
    Other Resistance Resists ice
    Durability Tough
  • Technical Data for Dow Dowsil 92-009 Dispersion Coating

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • Aerospace - Rockets, Fuel transfer lines
      • Radar - Radar antennae
      • Aircraft - Undersides of aircraft, Structural members and undersides of aircraft
      • Space Applications - Vehicles orbiting in space, Vehicles orbiting in space
      • Electronics - Electrical
      • Industrial - Fan blades used in wind tunnels, Launch equipment from corroding and eroding, Struts
      • Engine - Engine cases
      • Cable - Steel cables
      • Other - Environmental sealing
    • Chemistry
    • Application Method
      • Brush
      • Spray
      • Flow - Pour
      • Dip
    • Cure Method
      • Room Temperature / Air Dry - Air-drying, Room temperature curing
    • Color
      • Translucent
    • Brand
      • Dowsil
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) 4,320 Test Method
    Viscosity (cPs) 8,200 Test Method
    Tack Free Time (min) 40 Test Method
    Bond Strength
    General Bond Strength (psi) Excellent
    Tear Strength (piw) High, 180 (ppi) Test Method
    Tensile Strength (psi) 1,300 Test Method
    Material Resistance
    Ozone Resistance Resists ozone
    Chemical Resistance Resists chemicals
    UV Resistance Resists ultraviolet radiation
    Environmental Resistance Resists weathering
    High Temperature Resistance (°C) <260
    Moisture/Humidity Resistance Resists moisture
    Other Resistance Resists ice
    Conductivity
    Thermal Conductivity (W/m°K) 2.18, 1.26 (Btu-in/ft2 hour) Test Method
    Volume Resistivity (O) 5.4e14 (ohm/cm) Test Method
    Hardness
    Durability Tough
    Shore A Hardness 46 Test Method
    Elongation (%) 7 Test Method
    Other Properties
    Specific Gravity 1.110 Test Method
    Flash Point (°F) 64.4 Test Method
    Business Information
    Shelf Life Details When stored below 32°C (90°F) in closed containers, Dow Corning 92-009 Dispersion Coating has a shelf life of 9 months from date of manufacture.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 9
  • Best Practices for Dow Dowsil 92-009 Dispersion Coating

    *See Terms of Use Below

    1. Surface Preparation

      In most cases, substantially stronger and more uniform adhesion is obtained by preparing the surface to be treated with DOWSIL™ 1200 OS Primer. The following steps are recommended for all surfaces except silicone rubber. (Silicone rubber surfaces should be roughened with sandpaper and then cleaned with acetone before applying the coating.)

      Thoroughly clean and degrease the surface.

      Rinse all cleaning agents off surface with acetone or methyl ethyl ketone.

      After rinse agent has dried, apply a coat of DOWSIL™ 1200 OS Primer by dipping, brushing, or spraying. Typically, a very thin coating of primer will provide the best adhesion. If cracks appear in the chalked film, too much primer was applied.

      Under typical room temperature and humidity conditions, the primer should be allowed to air-dry for 60 to 90 minutes. Because the prime coat is moisture sensitive, low humidity will necessitate a longer drying time.

      Apply DOWSIL™ 92-009 Dispersion Coating.

    2. Application

      DOWSIL™ 92-009 Dispersion Coating can be applied by brushing, dipping, or pouring as supplied. If spraying is the preferred application method, the coating can be thinned with naphtha to any viscosity necessary for use with the intended spray equipment (see Mixing Recommendations). As supplied, the average build per coat is 5 to 6 mils.

      For the smoothest coat, the following procedure is recommended: 1. Dilute the coating using a 1.3 to 1 ratio of naphtha to coating by volume (1 to 1 by weight).

      2. Apply four passes in rapid succession per coat.

      3. If extra buildup is desired, apply successive coats within 30 minutes after the preceding coat was applied. If this is not possible, allow the coated surface to air-dry four hours before applying the next coat.

      Thicker coatings may also be achieved by using less naphtha

      however, a rougher surface may result.

      Pigmentation: DOWSIL™ 92-009 Dispersion Coating is easily pigmented for applications requiring color. To obtain good coverage, the pigment should comprise at least 3 percent of the total formulation by weight. When pigmenting the coating white, zinc oxide or titanium dioxide is recommended. Using the smallest available particle size will minimize settling problems. For other colors, silicone color concentrates–pigment dispersed in a silicone oil to form a paste material–provide the easiest application with the best results. Only two parts per 100 are required (see Mixing Recommendations).

    3. Mixing

      Any solvent or pigment added to DOWSIL™ 92-009 Dispersion Coating must be free of moisture to prevent premature gellation. This can be accomplished by adding the solvent or filler to the coating and rolling the combination in a closed container until thoroughly mixed, or by mixing in a commercial paint shaker. Zinc oxide or titanium dioxide should be dried 24 hours at 200°C (392°F) in trays before adding it to the coating.

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    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C 50% relative humidity
Cure Time Test Methods
Cure Time Test Method
4,320 min 50% relative humidity
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
40 min 25°C CTM 0095
Viscosity Test Methods
Viscosity Test Method
8,200 cPs CTM 0050
Tensile Strength Test Methods
Tensile Strength Test Method
1,300 psi ASTM D 412
Tear Strength Test Methods
Tear Strength Test Method
High
180 (ppi) ASTM D 624, Die B
Thermal Conductivity Test Methods
Thermal Conductivity Test Method
2.18 W/m°K CTM 0224
1.26 (Btu-in/ft2 hour) CTM 0224
Volume Resistivity Test Methods
Volume Resistivity Test Method
5.4e14 (ohm/cm) CTM 0249
Elongation Test Methods
Elongation Test Method
7 % ASTM D 412
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
46 Durometer, ASTM D 676
Flash Point Test Methods
Flash Point Test Method
18.0°C CTM 0021A
Specific Gravity Test Methods
Specific Gravity Test Method
1.110 CTM 0022