Varnishes, Resins & Solvents for Electrical Insulation

Electrical Insulation Varnishes, Resins & Solvents

Quick product guide

3GK Red Spray

AEROSOL VARNISH

Best for: Red touch-up coating

Format: 400 ml aerosol

Use: Motors, coils & terminals

Ultimeg Clear Spray

AEROSOL VARNISH

Best for: Clear anti-tracking protection

Format: 400 ml aerosol

Use: Touch-ups & maintenance

Ultimeg Red 5L

LIQUID VARNISH

Best for: Red winding varnish

Format: 5 litre drum

Use: Motor rewinding

Ultimeg Clear 5L

LIQUID VARNISH

Best for: Clear winding varnish

Format: 5 litre can

Use: Coils, motors & transformers

Xylene

SUPPORTING SOLVENT

Best for: Thinning & cleaning

Format: Solvent/thinner

Use: Varnish application support

Which Varnish Should I Choose? ▾

A simple guide to help match the product format to your application.

If you need...	Choose
Quick touch-ups and repairs	3GK Red Spray
Clear protective coating	Ultimeg Clear Spray
Bulk red insulating varnish	Ultimeg Red 5L
Bulk clear insulating varnish	Ultimeg Clear 5L
Thinning or equipment cleaning	Xylene

Electrical Insulation Varnishes

Choose from aerosol varnishes for quick repairs and maintenance, or 5 litre liquid varnishes for motor rewinding, coil impregnation and workshop applications.

Spray Varnishes

Best for touch-ups, maintenance, hard-to-reach areas and smaller electrical insulation repairs.

Aerosol application
Anti-tracking protection
Quick workshop use

Liquid Varnishes

Best for motor rewinding, coil coating, brush application and larger workshop insulation work.

5 litre workshop packs
Motor winding protection
Coil and transformer applications

3GK Red Anti-Tracking Varnish Spray – 400ml

Class H red aerosol varnish for electrical insulation repairs and maintenance.

Ultimeg 2000/372 Clear Anti-Tracking Varnish Spray – 400ml

Clear Class H aerosol varnish for anti-tracking protection and touch-ups.

Ultimeg 2000-372 Red Alkyd Insulating Varnish

Durable red insulating varnish for motors, transformers and electrical windings.

Ultimeg 2000/372 Clear Alkyd Insulating Varnish

Clear Class H insulating varnish for motor rewinding and electrical repairs.

Supporting Solvents

Professional solvents for thinning compatible electrical insulating varnishes, cleaning application equipment and preparing surfaces before varnish application.

Xylene Electrical Insulation Thinners

Professional solvent for thinning compatible electrical insulating varnishes and cleaning application equipment.

Choosing the Right Varnish

Spray varnishes are ideal for maintenance, touch-ups and smaller electrical repairs, while 5, 25 and 210 litre liquid varnishes are better suited to motor rewinding, coil impregnation and larger workshop applications. If you're unsure which product best suits your application, we're happy to help.

Frequently Asked Questions

Can I brush or spray the 5L varnishes?

The 5 litre Ultimeg insulating varnishes are typically used for brush, dip or other workshop application methods rather than aerosol spraying. If you're unsure which application method is best for your process, contact us for advice.

What's the difference between spray and liquid varnish?

Spray varnishes are ideal for maintenance, touch-ups and smaller electrical repairs where fast, convenient application is important. Liquid varnishes are better suited to motor rewinding, coil impregnation and larger workshop applications requiring greater coverage.

Can I use Xylene to thin insulating varnish?

Xylene is commonly used for thinning compatible electrical insulating varnishes and for cleaning application equipment. Always follow the varnish manufacturer's recommendations regarding compatibility, thinning ratios and safe handling procedures.

Which varnish should I use for motor rewinding?

For complete motor rewinding and coil impregnation, the 5 litre Ultimeg liquid varnishes are generally the preferred choice. For maintenance work, repairs or touch-ups, aerosol anti-tracking varnishes provide a fast and convenient solution. If you're unsure which product best suits your application, contact our team for assistance.

Electrical Insulation Varnishes, Resins & Solvents

Our range of electrical insulation varnishes includes aerosol anti-tracking varnishes, liquid alkyd insulating varnishes and supporting solvents for motor rewinding, transformer repairs and electrical maintenance. Choose from 3GK Red Anti-Tracking Varnish Spray for high-visibility touch-ups, Ultimeg Clear Anti-Tracking Varnish Spray for clear protective coatings, or Ultimeg Red and Ultimeg Clear 5 litre insulating varnishes for larger workshop and production applications.

Ideal for electric motors, transformers, coils, stators, rotors and other electrical equipment, these professional insulating varnishes help improve dielectric performance while protecting components from moisture, dust and contamination. Complete your application with Xylene Electrical Insulation Thinners for thinning compatible varnishes and cleaning application equipment. For additional products used in electric motor repairs, browse our Motor Rewinding Products collection.