We offer 4223F Urethane Conformal Coating, a one-part, heat-curing thermoset urethane coating designed to provide durable protection for printed circuit boards and electronic assemblies. The coating cures to form a flexible, smooth, and scratch-resistant finish while providing dependable protection in demanding operating environments.
4223F is easy to apply and can be handled after approximately 15 minutes. Its heat-curing formulation reaches full cure in around 2 hours at 100 °C, making it suitable for electronic manufacturing processes where reliable conformal protection and efficient processing are required.
A flexible and scratch-resistant urethane coating that helps protect circuit boards against moisture, chemicals, corrosion, dust, dirt, abrasion, fungus, and thermal shock.
The coating is suitable for application using selective coating equipment and can be removed with appropriate strippers or soldered through when repair and rework are required.
4223F Urethane Conformal Coating is developed for applications where electronic assemblies require strong protection against aggressive environmental conditions. Its durable resin coating helps shield circuit boards from chemicals, corrosion, moisture, fungus, dirt, and dust.
The cured coating also provides resistance against thermal shock and abrasion, helping protect sensitive electronic assemblies during demanding operating conditions. It is designed to form a continuous protective layer that helps maintain the reliability of PCB components.
In addition to environmental protection, the coating helps protect electronic assemblies against electrical hazards such as short circuits, high-voltage arcing, and static discharge.
4223F provides a combination of mechanical, electrical, and environmental protection for electronic assemblies. The cured coating has a durable, flexible, smooth surface with scratch-resistant characteristics.
The material is certified to UL94 V-0 and offers a maximum service temperature of up to 200 °C. It also fluoresces under UV-A light, which can assist with coating inspection during manufacturing and quality-control processes.
The coating is also suitable for use with selective coating equipment, supporting controlled application on printed circuit boards and electronic assemblies.
4223F is suitable for protecting printed circuit boards and electronic assemblies that operate in chemically demanding and environmentally exposed conditions. Its combination of corrosion resistance, moisture protection, abrasion resistance, and thermal durability makes it suitable for a variety of electronics protection requirements.
The coating can be considered for electronic assemblies requiring protection from humidity, chemicals, contamination, thermal cycling, electrical stress, and mechanical wear. Its compatibility with selective coating equipment also supports use in controlled PCB manufacturing environments.
4223F Urethane Conformal Coating is available in multiple packaging formats to accommodate different application and production requirements. Packaging options include bottles, cans, pails, and aerosol formats.
Available package sizes include 55 mL, 945 mL, 3.78 L, 18.9 L, and a 430 mL aerosol format, providing options for smaller applications as well as larger-volume production environments.
With its one-part heat-curing formulation, flexible cured finish, high environmental resistance, and suitability for selective coating processes, 4223F provides a dependable conformal coating solution for protecting sensitive electronic assemblies. It is particularly suited to applications where long-term PCB protection is required in challenging chemical, mechanical, thermal, and electrical environments.
Sarthhak Resolve Global Private Limited is an authorized distributor of globally recognized brands, delivering high-quality industrial solutions for automotive and EMS industries with reliability and technical expertise.
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