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500-150 is a single-component translucent alkoxy paste with moderate tensile strength and extremely high elongation for applications that require quick cures and early green strength development on sensitive components.

As one of our 500 Series Electronics-grade silicones, 500-150 is a translucent neutral cure (alkoxy) sealant with moderate tensile strength and extremely high elongation. It’s a ready-to-use, room temperature moisture cured silicone that cures to a tough, resilient rubber. When a non-corrosive product is required, this is an alternate unprimed adhesive solution that:

  • Delivers a more uniform bond
  • Acts like a gasket to protect against moisture and dust
  • Helps dampen vibrations

500-150 comes in a translucent paste form, skins over in 10 – 30 minutes, and is completely cured within 72 hours.

How to Buy
  • Applications
    • Frame and junction box sealant in photovoltaic modules
    • Sensitive electronic components and circuit boards
    • General industrial sealing and bonding applications requiring a non- corrosive product
  • Details

    Novagard’s 500 series moisture-cure conformal coatings and sealants achieve primer-less adhesion to aluminum, polycarbonate, glass, and steel. The inside-out cure provides longer working times and low odor, and are free of solvents with no isocyanates. 500-150 is ideal for applications that require quick cures and early green strength development on electronic components, circuit boards, and other sensitive components.

    Certain materials, chemicals, curing agents, and plasticizers may inhibit the cure. The most notable are organotin catalysts, amino compounds, polysulfide, and other sulfur-containing materials. Do not use in or around highly oxidative chemicals such as liquid oxygen, chlorine, or peroxides. Not recommended for surfaces that are to be painted.

  • Packaging
    This product is available in the following formats:
    • 10 ounce cartridge
    • 1 gallon pail
    • 5 gallon pail
    • 55 gallon drum
  • Specifications
    • Physical Properties
      Cure Chemistry Electronics Grade Appearance Specific Gravity Extrusion Rate Skin-Over Time (min) Cure Time Durometer Shore A Tensile Strength (psi) Elongation (%)
      1 Component Alkoxy Moisture Yes Translucent Paste 1.00-1.05 30 5-30 72 hours max 18 +/- 5 175-225 950-1,050
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