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500-210 is a balanced-performance clear sprayable silicone coating featuring a rapid room temperature alkoxy moisture cure that can be further accelerated with heat. UL 746E certified with a V-1 rating for flammability (view yellow card).

This conformal coating seals and protects components from dust, moisture, and environmental hazards. It’s a ready-to-use silicone that cures to a resilient rubber that is tough enough to resist abrasion, yet compliant enough to reduce strain on electronics components. As one of our 500 Series Electronics-grade silicones, 500-210 is a neutral cure (alkoxy) sealant suitable for spraying or flow coating. This silicone is UL 746E certified and has a V-1 rating for flammability. When a non-corrosive product is required, this is an unprimed adhesive solution that:

  • Delivers a more uniform bond
  • Offers a stronger bond for applications where adhesion is critical
  • Provides a barrier coating to protect against moisture and dust
  • Helps dampen vibrations
  • Simplifies production with a single component “dispense and forget” application

A translucent liquid, 500-210 has a viscosity of 450 cPs and is tack free in less than 10 minutes.

  • Made in USA
  • ul 746e
How to Buy
  • Applications
    • Protecting sensitive electronic components and circuit boards
    • Thin-section encapsulation
    • General electronics/industrial coating applications requiring a non- corrosive product
    • Frame and junction box sealant in photovoltaic modules
  • Details

    Novagard’s 500 series moisture-cure conformal coatings and sealants achieve primer-less adhesion to electronics substrates such as FR4, plastic, copper, and other metals. The inside-out cure provides longer working times and low odor, and are free of solvents with no isocyanates.

    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 and Lead Times
    This product is available in the following formats:
    • 10 ounce cartridge
    • 5 gallon pail

    Lead times are:
    • 10 business days
  • Specifications
    • Physical Properties
      Form Cure Chemistry Electronics Grade Appearance UV Indicator Specific Gravity Viscosity (cPs) Skin-Over Time (min) Durometer Shore A Tensile Strength (psi) Elongation (%)
      Conformal Coating 1 Component Alkoxy Moisture Yes Clear liquid Yes 0.98 450 <10 40 65 95
    • Electrical Properties
      Dielectric Strength Dielectric Constant at 100 Hz Dielectric Constant at 100 kHz Dissipation Factor at 100 Hz Dissipation Factor at 100 kHz Volume Resistivity (Ω cm)
      >13.5 kV/mm
      406 V/mil
      2.25 2.25 0.0012 0.0001 1.55 x 1014
    • Certifications
      UL 746E Flammability (UL-94)
      Pass V-1
  • Downloads
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