422B is a 1-part, acrylic-silicone blend conformal coating that cures to a durable, flexible and smooth finish. It is easy to apply and can be handled in only 10 minutes. It may be removed with appropriate strippers or soldered through for repair or rework.

422B is designed for applications where both high service temperature and flexibility are required. It puts minimum stress on components during thermal cycling, making it ideal for applications that involve a wide temperature range. It provides strong protection against moisture, corrosion, fungus, dirt, dust, thermal shock, short circuits, high-voltage arcing, and static discharge.

Features and Benefits
  • Certified UL 94V-0 (File# E203094)
  • Maximum constant service temperature of 200 °C [392 °F]
  • Fluoresces under UV-A light
  • Validated for selective robotic coating equipment
  • Excellent corrosion resistance—tested in salt spray environment with no oxidation or coating damage


Catalog Number Net Volume Net Weight Packaging
422B-55ML 55 mL [1.86 fl oz] 50.6 g [1.78 oz] Bottle
422B-1L 945 mL [1.99 pt]     869 g [1.91 lb] Can
422B-4L 3.78 L [1.00 gal] 3.47 kg [7.66 lb] Can
422B-20L 18.9 L [5.04 gal] 17.3 kg [38.3 lb] Can
422B-P 5 mL [0.16 fl oz] 4.49 g [0.15 oz] Pen
422B-340G 425 mL [14.3 fl oz] 340 g [11.9 oz] Aerosol
422B-340GCA 425 mL [14.3 fl oz] 340 g [11.9 oz] Aerosol

Safety Data Sheet
Technical Data Sheet

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