4226A - Clear Insulating Varnish

4226A is a highly insulating varnish with excellent arc and corona resistance. This dielectric coating is a low viscosity, 1-part coating that is easy to use and adheres well to many substrates.

Dielectric coatings like 4226A protect high voltage parts such as transformers, coils, motor windings, and various electric generator parts against arc, corona discharge, corrosion, and moisture fouling.

4226A is free of hazardous air pollutant solvents (HAPs) such as xylene and toluene.

For dielectric coating, see 4228. For red insulating varnish, see 4228A.

Features & Benefits

  • High dielectric strength
  • Maintains dielectric protection under conditions of high humidity and high temperature
  • Excellent finish – tough, flexible, glossy, and durable transparent coat
  • Adheres to metals, glass, and most common plastics
  • HAPs-free solvent system (no xylene, toluene, and MEK)
Catalog Number Packaging Net Vol. Net Wt.
4226A-55ML Bottle 55 mL 52.6 g
4226A-340G Aerosol 426 mL 340 g
4226A-1L Can 945 mL 904 g
4226A-3.78L Can 3.78 L 3.61 kg
4226A - Clear Insulating Varnish

Technical Documents

Technical Datasheet (TDS) - (Liquid)

Technical Datasheet (TDS) - (Aerosol)

Insulation Coatings Catalogue

Conformal Coating Catalogue

Safety Data Sheet