Dow 92-023 Primer

Dow 92-023 Primer Datasheet
  • Description for Dow 92-023 Primer

    Specially formulated for use with addition-cure silicones to mitigate surface cure poisoning. This clear primer is diluted in heptane solvent and enhances the adhesion of many addition-cure silicones to a wide variety of surfaces.

    *See Terms of Use Below

    Application Type Prime
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Ceramics, Glass, Metals, Silicone, Composites
    Industry Displays, E-Mobility Solutions, Powertrain, Smart Meters, Smart Home Devices
    Manufacturer Dow
    Chemistry Heptane Solvent
    Cure Method Moisture, Solvent
    Cure Temperature (°C) 20 to 25
    Cure Time (min) 60 to 120
    Viscosity (cPs) 1
    Color Clear
    Other Resistance Inhibition
    Can Be Used In Conjunction With These Materials Addition-cure silicones
  • Technical Data for Dow 92-023 Primer

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • E-Mobility Solutions
      • Powertrain
      • Displays
      • Smart Meters
      • Smart Home Devices
    • Chemistry
    • Application Method
      • Brush - Wiping
      • Spray
      • Dip
    • Cure Method
      • Moisture / Condensation Cure - Moisture
      • Solvent
    • Color
      • Clear / Transparent - Clear
    • Can Be Used In Conjunction With These Materials
      • Silicones - Addition-cure silicones
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25
    Cure Time (min) 60 to 120
    Viscosity (cPs) 1 Test Method
    Material Resistance
    Other Resistance Inhibition
    Other Properties
    Flash Point (°F) 8.6 Test Method
    Business Information
    Shelf Life Details Shelf life is indicated by the “Use By” date found on the product label. For best results, Dow Corning primers, prime coats, and adhesion promoters should be stored below 32°C (90°F).
    Shelf Life Type from date of manufacture
    Shelf Life (mon) 18
  • Best Practices for Dow 92-023 Primer

    *See Terms of Use Below

    1. Surface Preparation

      The active ingredients must thoroughly wet-out and coat the bonding surfaces. Mild abrasion, solvent cleaning, plasma, corona discharge, and other pre-treatments have been used to clean and enhance surface reactivity to bonding. In general, light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. Surfaces should be cleaned and/or degreased with Dow Corning ® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK), or other suitable solvents that will remove oils and other contaminants that may be present.

      A final surface wipe with acetone or IPA may also be helpful. Different cleaning techniques may give better results than others. Users should determine the best technique for their applications. For especially difficult-to-bond-to surfaces, it may be necessary to increase the surface reactivity by chemical etchants or oxidizers, or by exposing the surface to UV, corona, plasma, or flame sources. Allow solvents to completely evaporate before applying the primer.

    2. Application

      These products should be applied in a very light, even coat by wiping, dipping, or spraying. Excess material should be wiped off to avoid over-application, which generally appears as a white, chalky surface. When dip or spray coating, diluting by a factor of 2 to 4 with additional solvent may avoid excessive build-up.

    3. Curing

      These products require moisture in the air to cure, and are generally cured at room temperature and in a range of 20 to 90 percent relative humidity for 1 to 2 hours. Low humidity and/or low temperature conditions require longer cure times. Mild heat acceleration of the cure rate may be possible but temperatures above 60°C (140°F) are not recommended. During application, the carrier solvent typically evaporates quickly, allowing the active ingredients to begin to react with atmospheric moisture and bonding surfaces. For optimal bonding, different cure times may be required for different temperature and humidity conditions. Users should determine the best cure schedule and conditions for their applications.

      The desired silicone elastomer should be applied after the primer, prime coat, or adhesion promoter has fully cured.

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Viscosity Test Methods
Viscosity Temperature
1 cPs 25°C
Flash Point Test Methods
Flash Point Test Method
-13.0°C Closed cup, tested to Dow Corning Corporate Test Method 0917, based on ASTM D 3278.