Dual-Cure Conformal Coating


High-Performance Conformal Coating with Secondary Moisture Cure

Dual-Cure 9483 is a conformal coating that cures tack-free upon exposure to UV/Visible light and then with ambient moisture over time, on PCBs where shadow areas are present. The product also fluoresces bright blue under low-intensity UV black light (365 nm) for visual inspection of the coating coverage and has no solvents added.

9483 is easily applied from 2-8 mils (0.002 in – 0.008 in) thick to meet the requirements of most automotive PCB designs. The material exhibits excellent corrosion and chemical resistance as well as excellent thermal cycling properties. Applications include conformal coating of rigid and flexible printed circuit boards for the automotive, general/consumer electronics, and appliance, as well as the aerospace and defense industries.

9483 is ideal for coating automotive sensors, control modules, and miscellaneous automotive components.  Recommended substrates include lead frame, PCB, flex, and ceramic.

Dymax materials have no solvents added 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.

Dual-Cure 9483 is in full compliance with the RoHS2 Directives 2015/863/EU.


  • Cures with UV/Visible light
  • Dual-Cure - secondary moisture cure for shadow areas
  • Fluoresces blue under black lights
  • Excellent thermal shock resistance
  • High temperature flexibility
  • Excellent chemical and corrosion resistance
  • Good temperature/humidity (85/85) performance
  • One part formulation - no mixing
  • No solvents added
  • Fast tack-free cure
  • Halogen free
  • MIL-I-46058C Approved
  • Passed Hyundai MS941-04
  • UL 94V-0 Flammability
  • UL 746-E

Typical Properties

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Property Values
Viscosity (nominal) 750 cP
Cured appearance clear / light amber
Fluoresces Yes, blue

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Dual-Cure Conformal Coating 9483

Keep your printed circuit boards operating at peak performance in even the most extreme environments with Dymax 9483. This dual-cure, light- and moisture-curable conformal coating provides superior protection of rigid and flexible printed circuit boards, sensors, control modules, and miscellaneous components found in automotive, appliance, consumer electronics, and aerospace and defense applications. When tested, 9483 displayed excellent performance in a number of tests including thermal cycling, heat/humidity, salt spray, and chemical corrosion testing.

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