High Performance Conformal Coating with Secondary Moisture Cure

Dual-cure 9483 is a solvent-free 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.

9483 is easily applied from 2-8 mils (0.002″ – 0.008″) 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 both 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.

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 lampsfocused beam lampsflood 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.


Viscosity (nominal):  690 cP

Cured Appearance: Clear/Light Amber

Fluoresces?:  Yes, Blue


Conformal coating
Recommended substrates include lead frame, PCB, flex, and ceramic


UV/Visible light cure in seconds
Secondary moisture cure for shadowed areas
Excellent thermal shock resistance
High temperature flexibility
Excellent chemical and corrosion resistance
Good temperature/humidity (85/85) performance
Solvent free
One part, no mixing required
Bright blue fluorescing
Fast tack-free cure
Halogen Free

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