Electrical Insulation Coatings

Technology Overview

Union VoltShield electrical insulation coatings provide exceptional dielectric properties and thermal stability for electrical applications. Based on specially formulated epoxy resins, these fast-curing coatings deliver reliable insulation performance for busbars, motor components, and electrical enclosures.

Key Performance Features

High Breakdown Voltage

Union VoltShield formulations achieve breakdown voltages exceeding 30V/µm, providing robust electrical insulation for high-voltage applications. This exceptional dielectric strength ensures safe operation of electrical components in demanding industrial environments.

Rapid Cure Capability

Designed for high-volume electrical component manufacturing, Union VoltShield coatings cure exceptionally fast on preheated substrates (>160°C), maximizing production efficiency while maintaining consistent insulation properties across all production batches.

Thermal Stability

With less than 2.0% weight loss after 12 hours at 250°C, Union VoltShield maintains insulation integrity under elevated temperature conditions. This thermal stability ensures reliable performance in electrical applications where heat generation is unavoidable.

Mechanical Durability

Combining 200 kgcm impact resistance with excellent flexibility (90° bend at 300µm), Union VoltShield provides mechanical protection alongside electrical insulation. The tough film withstands handling, assembly, and service conditions without compromising dielectric properties.

Union Electrical Insulation Product Portfolio

Union VoltShield EE70

• Breakdown Voltage: >30 V/µm
• Cure Schedule: 10 minutes at 150°C (on preheated substrate)
• Film Thickness: 300-600 microns recommended
• Applications: Busbar insulation, electric motor cores, hermetic connectors
• Colors: Standard electrical colors (green, grey, red, blue, yellow)