Fiber Glass Varnish Sleeving

Fiberglass varnished sleeves are electrical insulation products made of braided fiberglass coated with a flexible, varnish to enhance durability, dielectric strength, and resistance to contaminants.

Key Features and Specifications

Varnished fiberglass sleeves are widely used for wiring insulation in motors, transformers, generators etc.

Material

Braided E-glass fiberglass yarn, coated with varnish and resin.

Temperature Rating

They typically fall into insulation class B s (up to 130°C) with some unvarnished options handling up to 600°C.

Dielectric Strength

The varnish coating significantly enhances electrical insulation properties, with typical breakdown voltage ratings ranging from 1.5 kV to 4 kV, depending on the thickness and coating type.

Resistance

They offer excellent resistance to heat, oil, moisture, chemicals, and abrasion.

Flexibility

Designed to be flexible, durable, and easy to install over wires and around bends without fraying.