Wire Enamels

Q: What is the difference between single-coat and dual-coat wire enamels?

Single-Coat Enamels : Feature a single layer of insulation, offering a cost-effective solution with adequate protection. Dual-Coat Enamels : Consists of a base coat and a top coat, providing enhanced insulation properties and better thermal and chemical resistance, ideal for more demanding applications.

Q: What are Primary and Secondary Insulations?

Primary Insulation : This is the main barrier that prevents electrical current from flowing between the conductor windings (copper or aluminium). It includes wire enamels and coatings applied directly to the conductors. Secondary Insulation : This provides additional protection and acts as a backup to the primary insulation. It ensures that even if the primary insulation fails, there is an extra layer to prevent electrical faults. This includes insulating varnishes and resins.

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Wire Enamels

Wire enamels play a crucial role in enhancing the overall performance of enamelled winding wires. Our high-quality wire enamels provide excellent runnability, making them suitable for various enamelling ovens and enabling high productivity with lower power costs.

Choose from our range of specialized enamels designed to meet stringent enamelled wire standards. Our solutions optimize the efficiency of your enamelling ovens, making them ideal for applications involving copper or aluminium, round or rectangular wires, and both high VD/high-speed or medium VD/medium-speed ovens.

Types of Wire Enamels

Modified Polyester

Balances Thermal, Mechanical, and Chemical Properties.

Theic Polyester

Delivers Strong Thermal and Mechanical Properties.

Polyesterimide

Offers Excellent Thermal Performance and Superior Hermetic Resistance.

Polyvinyl Acetal/Formal

Provides Outstanding Mechanical Properties, Ideal for CTC (Copper-to-Copper) Applications.

Polyamide Imide

Ensures Exceptional Chemical and Thermal Resistance.

Polyurethane (Solderable)

Features Excellent Flexibility and Solderability.

Polyesterimide (Solderable)

Combines High Thermal Performance with Superior Solderability.

Epoxy Bondable

Offers Self-bonding Capabilities, Suitable for CTC Applications.

Nylon - Polyamide

Ideal for High-speed Coil Winding Requiring Low Friction.

Fiberglass Conductor Binder Varnishes

Delivers High Flexibility, Adhesion, and Bond Strength.

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Wire Lubricants

Enhances
Low-friction Winding.

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Enamel Removers

Enables Quick and Efficient Removal of Enamel Film.

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Cleaning Solutions

For Cleaning Dies, Pulleys, Enamel Tanks, Applicators, and Other Equipment.

Cenvar Wire Enamels Highlights

Suitable for copper and aluminium conductors

Compatible with round, rectangular, CTC, and fibreglass wires

Designed for high-speed catalytic to multi-line enamelling ovens

Lowest cost polyamide imide enamel

Available up to Thermal Class 220

RoHS compliant

FAQs

What is the difference between single-coat and dual-coat wire enamels?

Single-Coat Enamels: Feature a single layer of insulation, offering a cost-effective solution with adequate protection.
Dual-Coat Enamels: Consists of a base coat and a top coat, providing enhanced insulation properties and better thermal and chemical resistance, ideal for more demanding applications.

Can Cenvar’s wire enamels be used in high-temperature environments?

Yes, Cenvar’s wire enamels are available in multiple thermal classes, including up to Thermal Class 220, making them suitable for high-temperature environments.

Are Cenvar’s wire enamels RoHS compliant?

Yes, all Cenvar wire enamels comply with RoHS regulations, ensuring they meet strict environmental and safety standards.

Which enamelling ovens are suitable for Cenvar wire enamels?

Cenvar wire enamels are designed to be compatible with a variety of enamelling ovens, including:

High-speed / High VD (Voltage Drop) enamelling ovens
Multi-line medium-speed / Medium VD ratio enamelling ovens
Non-catalytic low-speed enamelling ovens

Can Cenvar’s wire enamels be customised for specific applications?

Yes, Cenvar offers custom formulations of wire enamels tailored to meet specific viscosities, solids, performance and application requirements.

What are Primary and Secondary Insulations?

Primary Insulation: This is the main barrier that prevents electrical current from flowing between the conductor windings (copper or aluminium). It includes wire enamels and coatings applied directly to the conductors.
Secondary Insulation: This provides additional protection and acts as a backup to the primary insulation. It ensures that even if the primary insulation fails, there is an extra layer to prevent electrical faults. This includes insulating varnishes and resins.

Wire Enamels

Wire Enamels