MG Chemicals 4226A-3.78L - High Voltage Clear Insulating Varnish 1 Gallon (Case of 5)
MG Chemicals 4226A-3.78L - High Voltage Clear Insulating Varnish 1 Gallon (Case of 5)
Premium dielectric coating for high voltage electrical components and motor windings. MG Chemicals 4226A is a highly insulating varnish engineered for arc and corona resistance in transformers, coils, motor windings, and electric generator parts. This low viscosity, 1-part clear coating provides superior dielectric protection against arc discharge, corona, corrosion, and moisture fouling in demanding electrical applications.
PRODUCT SPECIFICATIONS
• SKU: 4226A-3.78L
• Type: 1-part insulating varnish (dielectric coating)
• Appearance: Clear, glossy finish
• Container Size: 1 gallon (3.78 L) can
• Net Weight: 3.61 kg per can
• Case Quantity: 5 gallons (5 cans per case)
• Solvent System: HAPs-free (no xylene, toluene, or MEK)
• Manufacturer: MG Chemicals
KEY FEATURES & BENEFITS
✓ High Dielectric Strength - Excellent electrical insulation for high voltage applications
✓ Arc & Corona Resistance - Protects against electrical discharge and corona damage
✓ Environmental Protection - Maintains dielectric properties under high humidity and high temperature
✓ HAPs-Free Formula - No hazardous air pollutants (xylene, toluene, MEK)
✓ Low Viscosity - Easy application by dipping, brushing, or spraying
✓ Excellent Adhesion - Bonds to metals, glass, and most common plastics
✓ Durable Finish - Tough, flexible, glossy transparent coating
✓ 1-Part System - No mixing required, ready to use
IDEAL APPLICATIONS
• Transformer insulation and protection
• Motor windings and stator coils
• Electric generator components
• High voltage coils and inductors
• Electrical equipment exposed to moisture
• Corona-prone electrical assemblies
• Industrial motor repair and rewinding
• Power distribution equipment
DIELECTRIC PROTECTION
4226A creates a protective barrier that prevents:
• Arc Discharge - Electrical breakdown between conductors
• Corona Discharge - Partial electrical discharge in air around conductors
• Moisture Fouling - Water ingress that reduces insulation resistance
• Corrosion - Chemical degradation of metal components
APPLICATION METHODS
• Dip Coating: Immerse components in varnish and allow to drain
• Brush Application: Apply with natural or synthetic brush
• Spray Application: Use conventional or airless spray equipment
• Vacuum Impregnation: For complete penetration of windings
ENVIRONMENTAL & SAFETY ADVANTAGES
Unlike traditional insulating varnishes, 4226A is formulated without hazardous air pollutant (HAP) solvents such as xylene, toluene, and MEK. This makes it safer for workers, reduces VOC emissions, and simplifies regulatory compliance while maintaining superior performance.
PERFORMANCE CHARACTERISTICS
• Maintains dielectric strength under high humidity conditions
• Withstands elevated operating temperatures
• Flexible coating resists cracking from thermal cycling
• Transparent finish allows visual inspection of coated components
• Excellent chemical resistance to oils, greases, and common solvents
PACKAGING & ORDERING
Each case contains 5 one-gallon cans (3.78 L each) for a total of 5 gallons (18.9 L) per case. Ideal for motor repair shops, transformer manufacturers, and electrical equipment production facilities.
TECHNICAL DOCUMENTATION
Download Technical Data Sheet (TDS)
Download Safety Data Sheet (SDS)
PRODUCT SPECIFICATIONS TABLE
| Catalog Number | Packaging | Net Volume | Net Weight |
|---|---|---|---|
| 4226A-3.78L | Can | 3.78 L (1 gallon) | 3.61 kg |
MG Chemicals - Trusted manufacturer of specialty chemicals and coatings for electronics, electrical, and industrial applications worldwide.
