4223 - Urethane Conformal Coating




4223 is a one-part, fast drying, thermoplastic polyurethane conformal coating. It cures to a durable, flexible, scratch resistant and smooth finish. It is easy to apply and can be handled in 15 minutes. It may be removed with appropriate strippers, or soldered through for repair or rework.

4223 protects printed circuit boards in extremely corrosive environments. It protects against moisture, fungus, dirt, dust, thermal shock, abrasion, short circuit, high-voltage arcing, and static discharge.

Features & Benefits

  • Meets UL 746E conformal coating specifications for indoor use at 2 mil thickness on a 0.8 mm FR-4 laminate
  • Meets UL 94V-1 flammability rating
  • Fluoresces under UV-A light (blacklight)
  • Isocyanate-free
Catalog Number Net Volume Net Weight Packaging
4223-55ML 55 mL [1.86 fl oz] 51.7 g [1.82 oz] Bottle
4223-1L 945 mL [1.99 pt] 841 g [1.85 lb] Can
4223-4L 3.78 L [1.00 gal] 3.36 kg [7.42 lb] Can
4223-20L 18.9 L [5.04 gal] 16.8 kg [37.1 lb] Pail

Technical Documents

Technical Datasheet (TDS) -

Safety Data Sheet

Warning WARNING! This product can expose you to chemicals including ethylbenzene, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.