Electrical insulation papers

Transformer-grade presspaper, cut around your winding design.

Cable paper, kraft paper, fish paper and crepe paper supplied in rolls, sheets, slit tapes and formed parts for transformers, motors, cables and electrical assemblies.

Roll & sheetStandard forms
Slit & punchCustom processing
Drawing-ledCustom supply
Class A–BOil compatibleSlit to width
Cable Paper Power cable & winding insulation
Featured showcase

Flagship presspaper products

01 / 06
01 Electrical cable paper
Core category

Cable Paper

Unbleached sulfate-pulp cable paper for conductor wrapping and layer insulation in power cables and transformer windings. Supplied in rolls and slit tapes.

Wood pulpRoll / tapeOil compatible
Product page
02 Kraft insulation paper
Workhorse grade

Kraft Insulation Paper

The standard transformer-grade paper for layer, turn and barrier insulation. Clean, uniform caliper, available in multiple thicknesses and widths.

Layer insulationMultiple calipersSlit to width
Product page
03 6520 fish paper
Flexible presspaper

6520 Fish Paper

A tough, flexible presspaper for slot liners, phase insulation, gaskets and washers in motors and small transformers. Easy to punch, fold and form.

FlexiblePunchableSlot liners
Product page
04 Electrical crepe paper
Conformable wrap

Crepe Paper

Creped insulation paper with high stretch and conformability for wrapping leads, joints, bends and irregular shapes in transformers and cables.

High stretchLead wrappingConformable
Product page
05 Crepe paper tube
Formed insulation

Crepe Paper Tube

Flexible crepe-paper tubing for insulating lead exits, bushings and joints where a rigid tube cannot follow the geometry.

Flexible tubeLead exitsCustom ID / length
Product page
06 PSP 3055 SL cable paper
Specified grade

PSP 3055 SL Cable Paper

A specified high-density cable paper grade for applications that call out PSP 3055 SL by name. Confirm thickness, width and quantity for a direct quotation.

High densityNamed gradeRoll supply
Product page
Selection first

Paper is engineered, not just cut.

Caliper tolerance, density, moisture content, oil absorption and pulp purity all change how a presspaper behaves in oil and under voltage. We help you match the grade to the winding instead of substituting by thickness alone.

ACable & kraft paperLayer, turn and barrier insulation
BFish paper6520 flexible presspaper
CCrepe paperStretchable wraps & tubes
DDDP dotted paperResin-coated bonding paper
Product range

Choose by service condition

Click any product to view its applications, material data and quotation checklist on this page.

Core category01

Cable Paper

Unbleached sulfate-pulp paper for conductor wrapping and layer insulation in power cables and transformer windings, supplied in rolls and slit tapes.

View specifications
Workhorse grade02

Kraft Insulation Paper

Standard transformer-grade kraft paper for layer, turn and barrier insulation in oil-immersed equipment, in multiple calipers and widths.

View specifications
Flexible presspaper03

6520 Fish Paper

Tough, flexible presspaper for slot liners, phase insulation, gaskets and washers — easy to punch, fold and form.

View specifications
Conformable wrap04

Crepe Paper

Creped insulation paper with high stretch for wrapping leads, joints, bends and irregular shapes in transformers and cables.

View specifications
Formed insulation05

Crepe Paper Tube

Flexible crepe-paper tubing for lead exits, bushings and joints where a rigid tube cannot follow the geometry.

View specifications
Specified grade06

PSP 3055 SL Cable Paper

A named high-density cable paper grade for drawings and standards that call out PSP 3055 SL directly.

View specifications
Bonding paper07

DDP Diamond Dotted Paper

Kraft paper coated with a diamond-pattern resin that bonds layers together during drying and curing inside the winding.

View specifications
Drawing-based supply08

Custom Presspaper Parts

Slit tapes, punched shapes, formed cylinders and folded parts produced to your drawing from the presspaper grade you specify.

View specifications
Qualification logic

A safer path from requirement to quotation

  1. 01Define assembly function
  2. 02Select candidate material
  3. 03Review form, fit and processing
  4. 04Agree inspection evidence
Technical library

Buyer questions, answered precisely

01

How to Choose Presspaper for Transformer Windings

Caliper, density, moisture and oil behavior decide the grade — thickness alone is not a specification.

Read
02

Kraft Paper vs Crepe Paper

Flat papers insulate surfaces; creped papers follow shapes. Choose by geometry first.

Read
03

6520 Fish Paper vs Polyester-Film Laminates

Single-material flexibility against higher thermal class — know what you trade.

Read
04

Presspaper RFQ Checklist

Grade, caliper, form, quantity and drying — five lines that make a paper RFQ answerable in one round.

Read
Engineering-led RFQ

Send the drawing.
Define the duty.

Tell us the material, form, dimensions, quantity, operating temperature, destination and inspection requirements. We will review the application before quotation.

Custom sizes · cut & machined Export packing · sea & air Drawing-led custom supply

Do You Have Any Questions?

Leave us the insulation materials you are interested in and we will give you the latest catalog and quotation as soon as possible.