APA Composite Paper Tape

APA composite paper tape is a high-performance, triple-layer insulation material composed of aramid paper + PET film + aramid paper. This sandwich structure offers superior dielectric strength, mechanical flexibility, and thermal resistance, making it ideal for demanding electrical insulation applications in motors, transformers, and EV battery systems.

Features:

Triple-Layer Protection: Combines the thermal endurance of aramid paper with the mechanical strength and dimensional stability of PET film.
High Dielectric Strength: Ensures reliable insulation in high-voltage environments and compact winding designs.
Thermal Class F to H (155–180°C): Withstands continuous high-temperature exposure without degradation.
Excellent Flexibility: Ideal for automated slot insertion and tight winding applications.
Moisture & Chemical Resistance: Maintains insulation integrity even in harsh operating conditions.

Applications:

Slot and phase insulation in electric motors, Interlayer insulation in low and medium voltage transformers, Die-cut insulation components for EV battery modules, Wrapping and liner materials for coils and windings, Applications requiring both mechanical strength and thermal performance.

Additional Documents:

APA Composite Paper Tape (TDS)

Adhesive Tapes Selection Guide

Technical data

Nominal thickness [mm]		0.13	0.14	0.17	0.19	0.21
Thickness deviations[%]		±15
Ration [g/m²]		136	156	191	226	221
Nominal thickness of the film [mm]		0.04	0.05	0.075	0.1	0.125
Aramid paper nominal thickness [mm]		0.04	0.04	0.04	0.04	0.04
Breakdown voltage [KV]	Do not bend	≥7	≥9	≥11	≥12	≥14
	After bending	≥6	≥8	≥10	≥11	≥12
Tensile Strength[N/10mm]		MD ≥100 TD ≥70	MD≥ 120 TD≥ 90	MD≥ 160 TD≥ 130	MD≥ 190 TD≥ 160	MD≥ 220 TD≥ 190
Elongation At Break[%]		MD≥ 15 TD≥ 20		MD≥ 20 TD≥ 20
Dielectric strength[KV]		≥6	≥7	≥9	≥11	≥14
Normal adhesion		No layering
Hot adhesion (220±2) °C, 10min		No delamination, no foaming, no glue flowing
Long-term heat resistance[℃]		155-180

Legal Disclaimer

The values given are typical values, and do not constitute a specification. We recommend testing the suitability of the self-adhesive tape for the designated application or use. Please contact us or e-mail info@ysdiecut.com to determine product availability.

OEM: Delivers tailor-made adhesive tape products and die-cut components under your brand specifications—designed to integrate seamlessly into your end products.

ODM: Tape ODM (Original Design Manufacturing) refers to a service model where designs, develops, and manufactures ready-to-sell adhesive tape products that can be branded and marketed under your own label.

Die cutting tape are available in rolls, sheets, or custom-cut parts, tailored to a wide range of industry standards or customer-specific designs.

APA Composite Paper Tape Manufacturer
Yousan New Materials

Storage
It is recommended to store in a clean and dry place, away from direct sunlight to prevent damage to the packaging, and to avoid storing with volatile solvents. Store at 25±5°C and humidity at 50±5%.