Acetate Cloth Insulation Tape

Acetate Cloth Insulation Tape Backing: Acetate cloth Adhesive: Rubber resin / acrylic Thickness: 0.178-0.24 mm Color: Black / white Grade: 105C / 130C style Format: Roll / die-cut part Contact Us

Insulative Tape Company is a manufacturer of acetate cloth insulation tape for coil wrapping, transformer margining, motor winding, and compact electrical assemblies that need cloth-backed insulation with reliable handling. This tape uses acetate cloth backing with rubber resin or acrylic adhesive options, supporting dielectric performance, varnish absorption, and clean conversion into slit rolls or die-cut parts. Common 7 mil-8 mil styles, 105C or 130C grade selection, and sample testing help production teams confirm suitability before regular use.

Product Photos

Benefits

• Conformable acetate cloth backing helps the tape sit flat around coil edges, lead exits, and irregular winding areas.
• Typical dielectric breakdown references of 1.5 kV-2.5 kV support early comparison of thickness, overlap width, and insulation grade.
• The cloth backing absorbs electrical insulating varnishes and resins better than many smooth film backings.
• 105C Class A style and 130C Class B style options can be selected according to the insulation system and adhesive construction.
• A flame retardant acetate cloth tape grade can be specified when self-extinguishing behavior is required and test data is confirmed.
• Clean slitting, liner release control, and edge fray observation help improve handling for narrow rolls, die-cut strips, and die-cut pads.
• Sample checks can include dielectric breakdown, insulation resistance, varnish compatibility, edge lift after bake, and adhesive transfer observation.

Applications

• Used as transformer coil insulation tape for margining, lead exit protection, interlayer holding, and outer coil wrapping.
• Applied as motor winding insulation cloth tape for coil end holding, armature wrapping, and winding protection before varnish impregnation.
• Selected as power supply coil wrapping tape for inductors, small bobbins, switching transformers, and compact coil assemblies.
• Suitable for wire harness bundling inside electrical equipment where hand tearability, abrasion resistance, and insulation performance are needed.
• Supplied as die-cut strips or pads for winding workshops that need repeatable placement, liner-supported handling, and reduced cloth-edge fray.
• Used in insulation systems where varnish absorption, overlap stability, and edge lift after bake must be checked before production approval.

How should insulation grade be selected for acetate cloth insulation tape?

Insulation grade should be selected from the coil working temperature, voltage requirement, adhesive type, and the process after wrapping. A 105C Class A style may suit many controlled coil holding and insulation tasks, while a 130C Class B style can be considered for assemblies with higher thermal class requirements. For transformer margining, motor winding, and compact power supply coils, the tape should be tested under real wrap tension, planned overlap width, varnish exposure, and bake condition before being released into regular production.

Technical Data Sheet

Product Overview

This acetate cloth electrical insulation tape is made for coil and winding work where ordinary film tape may not give enough softness, cloth texture, or varnish absorption. The acetate cloth backing fits around bobbin corners, lead exits, winding edges, and slightly uneven coil surfaces without feeling stiff during application. After wrapping, the cloth structure can help electrical insulating varnishes and resins wet into the covered area during impregnation or controlled curing.

For insulation projects, selection is usually based on the complete working condition, not only the tape thickness. A 0.178 mm, 0.20 mm, 0.22 mm, or 0.24 mm construction can be reviewed together with dielectric breakdown references around 1.5 kV-2.5 kV, required insulation resistance, overlap width, winding tension, and bake condition. Rubber resin adhesive is often chosen for firm coil holding, while acrylic adhesive may be considered when cleaner handling or aging stability is preferred. If flame performance is required, the flame retardant grade should be confirmed as a specified tested grade.

What should be confirmed before using die-cut acetate cloth tape in coil production?

Before die-cut acetate cloth tape is used in coil production, the sample should be checked as both an insulation material and a converted part. The dimensional check should include slit width, die-cut shape, liner release, cloth-edge fray, and placement accuracy. The electrical check should include dielectric breakdown and insulation resistance after the tape is applied at the planned overlap or margin width. The process check should include varnish absorption, edge lift after bake, adhesive transfer, and compatibility with wire enamel, bobbin material, varnish system, and curing cycle.

FAQ

Is acetate cloth insulation tape suitable for varnish impregnation?

Yes. The acetate cloth backing can absorb electrical insulating varnishes and resins, but compatibility should be checked with the actual varnish system and curing cycle.

Can flame retardant grade be supplied?

Yes. A flame retardant grade can be supplied when specified. The required grade, test method, and sample result should be confirmed before production use.

What dielectric breakdown range is normally used for reference?

Common reference values are around 1.5 kV-2.5 kV, depending on thickness, adhesive system, humidity, and test condition.

Can this tape be die-cut for coil assembly?

Yes. It can be slit into narrow rolls or die-cut into strips and pads with liner support for transformer, motor, and power supply coil production.