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Our 4223F Polyurethane Conformal Coating is a heat curing, one part product that provides an excellent scratch, chemical resistant finish, meets UL 94-V0, and free of xylene and other hazardous air pollutants. This one part coating is easy to use and repair: it does not require special or costly equipment or materials. It is ideal for chemically challenging environments.

The 4223F urethane protects electric circuits against aggressive chemicals, moisture, dirt, dust, thermal shocks, and scratches. This avoids corrosion and physical damages to electric components. It insulates against high-voltage arcing, shorts, and static discharges, allowing for traces to be put closer to one another.


Catalog Number Sizes Available Description
4223F-312G 430 mL (14.6 fl oz) Aerosol -  New 
4223F-1L 945 mL (31.9 fl oz) Liquid
4223F-4L 3.78 L (1 gal) Liquid
4223F-20L 18.9 L (5 gal) Liquid
Features Applications
  • Rated UL 746E (file # E203094) for outdoor use
  • Externally Qualified to IPC-CC-830B-class A, by Pacific Testing Laboratories
  • Good solvent resistance
  • Good resistance to salt fog and sulfur
  • High gloss finish
  • Service temperature range -40°C to +125°C
  • Good low temperature flexibility
  • Cure time, 16 hours @ 80°C or 6 hours at 80°C and 7 days at ambient temperature
  • Easy to inspect—fluoresces under black light (UV light)
  • Free of isocyanates, xylene, toluene, and other hazardous air pollutants
  • Suitable for robotic spray equipment, custom formulations available for specific machines
  • Easy rework and repairs—can solder through
  • Removable with Cat. No. 8312 (liquid) Conformal Coating Stripper
  • Printed Circuit boards
  • LED Boards
  • Electric generators, motors and transformers
  • Electronic components in corrosive environments: - Farming – Mining – smelting - oil exploration - marine industries.
  • Fire alarms components, sensors, automotive electronics, electrical connectors, and porcelains.
  • Relays

Safety Data Sheet
Technical Data Sheet

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