Keo UV 9771

Dymax dual-cure 9771 conformal coating was developed to meet the most stringent requirements within the aerospace and defense industry. This UV conformal coating provides a cleaner PCB during extreme conditions due to its low outgassing and ionic content.  It can be used to protect critical electronic devices commonly found within military and aerospace systems and meets MIL-STD 883 Method 5011 standards for missiles, satellite, and space applications that are exposed to extreme conditions. It is also NASA MAPTIS Listed (Material Code 09841).

The 9771 also features a highly visible bright blue fluorescent tracer for simple quality inspection under black light. It is a dual-cure conformal coating, able to cure with both UV/Visible light and moisture to reach shadow areas. It’s an excellent alternative to solvated coatings providing a thin, protective coating without excessive weight to the PCB.

9771 NASA low outgassing conformal coating meets ASTM E595 TML and CVCM, UL 94 V0, and UL 746E, is MIL-I-46058C listed, IPC-CC-830-B approved, and in full compliance with the RoHS2 Directives 2015/863/EU.

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Mô tả


  • Protection for Space, Military and Aerospace electronics
  • NASA MAPTIS Listed (Material Code 09841)
  • Meets ASTM E595 Low Outgassing (NASA Outgassing Specification)
  • Low Ionic Content Compliance with MIL Std 883 Method 5011
  • UL 746-E recognized
  • UL 94V-0 Flammability
  • UV/Visible Light Cure
  • Secondary Moisture Cure
  • Temperature/Humidity Resistance
  • Corrosion Resistance
  • Bright Blue Fluorescing
  • MIL-I-46058C Approved
  • Meets IPC-CC-830-B


Property Values
Viscosity (nominal) 780 cP
Cured appearance Colorless
Total mass loss (TML) 0.90%
Collected volatile condensable material (CVCM) 0.02%
Ionic content per MIL-STD 833 Method 5011 Passes
Fluoresces Yes
Recommended substrates lead frame, PCB, silicon, flex circuit, FR4, common solder masks and ceramic
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