MG Chemicals 4226A-55ML High Voltage Clear Insulating Varnish, Bottle, 1-Part Dielectric Coat, 2oz

product id: 76210

Category: Electronic Production Supplies, Chemicals, Cleaning & Abrasives

Manufacturer: MG Chemicals

InstruHub is a leading supplier and reseller of MG Chemicals Electronic Production Supplies, Chemicals, Cleaning & Abrasives in Russia, and we ship to all major cities such as Moscow


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.

Features & Benefits:

  • High dielectric strength – 3 000 V/mil
  • 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)
  • Dry to Touch 1 h
  • Recoat Time 15 min
  • Recommended Film Thickness 25–38 µm
  • Theoretical Coverage @ 25 µm 100 ft 2/L (based on 65% transfer efficiency)

VOCs 520 g/L
Density 0.96 g/mL
Operating Temperature -30 – 180 °C
Dielectric Breakdown 5.5 kV
Dielectric Strength 3 000 V/mil
Dry Time to Touch 1 hour
Percent Solids 45%
Shelf Life 5 Years
Viscosity 25 ˚C 50 cP

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