True Black Conformal Coating with Secondary Heat Cure

Multi-Cure® 9451 cures upon exposure to UV/Visible light for conformal coating of printed circuit boards as well as tamper proofing. The product is a 100% solids, true black thin protective coating that has secondary heat-cure capability for curing in shadow areas. It is excellent for hiding components, board features, as well as sensitive information. The material is one part so no mixing is required and it is optimized for single-pass coating up to 0.0004″. 9451 also adheres well to a variety of materials including FR4, glass, and stainless steel.

Dymax materials are solvent free and cure upon exposure to light. Their ability to cure in seconds results in lower processing costs. When cured with Dymax UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax lamps offer the optimum balance of UV and visible light for the fastest, deepest cures. Multi-Cure® 9451 is in full compliance with the RoHS2 Directives 2015/863/EC.


Viscosity (nominal):  6,000 cP

Cured Appearance:  Matte Black Finish

Fluoresces?:  No


  • Conformal coating
  • Thin protective black coating
  • Tamper-evident coating
  • Recommended substrates include FR4, glass, stainless steel


  • UV/Visible light cure in seconds
  • Secondary heat cure for shadowed areas
  • True black conformal coating
  • Uniform matte finish
  • ULVO flammability
  • Designed for thin coatings
  • One-part coating – no mixing required
  • Covers sensitive information
  • Can be coated in multiple passes
  • Optimized for single pass coating up to 0.004″
  • Can be coated thicker in multiple passes

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