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800-400 is a UV-only, fast-curing non-adhesive paste.

With a typical viscosity of 300,000 cPs, 800-400 consistently holds its shape even when dispensed into complex patterns. With its nearly instant UV cure, 800-400 is widely used for automated dispensing and cured-in-place gaskets (CIPG). 800-400’s consistent rheology makes it ideal as a damming material in a dam and fill process.

This non-corrosive, single component silicone will cure to a solid elastomer in seconds upon exposure to ultraviolet (UV) light.

If you are looking for a UV-cured silicone paste that adheres to plastic, consider Novagard’s 800-401.

  • Made in USA
  • Proposition 65
  • VOC Compliant
How to Buy
  • Applications
    • Printed circuit/wiring boards
    • Flexible hybrid electronics
    • Rigid electronics
    • Sensitive components and harsh environments
    • Gasketing and sealing
  • Details
    • Electronics grade
    • Exceptionally fast cure
    • Room temperature cure
    • Single component
    • No oxygen inhibition
    • 100% solids
    • No solvents
    • Non-corrosive, neutral cure
    • Enhances reliability of delicate components
    • Provides stress and shock relief
    • Thermally stable from -40°F to 392°F (-40°C to 200°C)
    • Excellent adhesion to a variety of plastic and metal substrates


    800-400 can be applied by automated needle dispensing, jetting, or hand dispensing.

  • 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 Shadow Area Cure Appearance UV Indicator Specific Gravity Viscosity (cPs) Extrusion Rate Durometer Shore A Tensile Strength (psi) Elongation (%)
      Paste UV Only Yes No Translucent No 1.11 300,000 (Brookfield HB #6 @ 10 rpm) >200 g/min (1/8" orifice @50 psi) 20 370 1,200
    • 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)
      14.9 kV/mm
      378 V/mil
      3.34 3.33 0.0011 0.0021 3.01 x 1013
    • Specifications
      UL 94 V-1 (pending)
  • Downloads
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