---
type: "Technical Data Sheet"
title: "CMC 70320 – Technical Data Sheet"
description: "CMC 70320 is a self adhesive Kapton® film with high dielectric strength and outstanding resistance against corona / partial discharge."
resource: "https://datasheets.cmc.de/pdf/cmc-70320-en.pdf"
tags: ["kapton® crc", "0.025 ± 17%", "acrylic"]
language: "en"
product: "CMC 70320"
product_family: "cmc"
document_date: "2019-06"
status: "stable"
translation: "/cmc-70320-de.md"
generated: { by: "process:cmc-datasheets/0.1.0", at: "2026-09-23T16:56:34Z" }
sources:
  - id: "pdf"
    resource: "https://datasheets.cmc.de/pdf/cmc-70320-en.pdf"
    title: "Technical Data Sheet CMC 70320"
    author: "CMC Klebetechnik GmbH"
    last_modified: "2019-06-03T08:01:10Z"
---

# CMC 70320 – Technical Data Sheet

[PDF data sheet (binding)](/pdf/cmc-70320-en.pdf) · [Deutsche Version](/cmc-70320-de.md)

Issued: 2019-06

## Product description

CMC 70320 is a self adhesive Kapton® film with high dielectric strength and outstanding resistance against corona / partial discharge.

| Property | Value |
|---|---|
| Backing material | Kapton® CRC |
| Colour | light brown |
| Thermal conductivity in W/(m⋅K) value by DuPont for the substrate only | 0.35 |
| Substrate thickness in mm | 0.025 ± 17% |
| Total thickness in mm | 0.055 ± 10% |

## Adhesive properties

| Property | Value |
|---|---|
| Type of adhesive | acrylic |
| Adhesive strength in N/cm according to internal method PV 1006-32 (180° peel from steel) | ≥2 |

## Thermal properties

| Property | Value |
|---|---|
| Temperature performance (max.) in °C | 180 |
| Short term temperature performance in °C (ca. 1 hour) | 200 |
| Insulation class according to IEC 60085 | H |

## Electrical properties

| Property | Value |
|---|---|
| Breakdown voltage based on IEC 60243-1 in Veff. | ≥ 6'000 |

## Mechanical properties

| Property | Value |
|---|---|
| Tensile strength in N/cm | ≥ 30 |
| Elongation at break in % | ≥ 30 |

## Other properties

® registered trademark of DuPont de Nemours

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*The technical data are average values and do not replace the user's own testing. Subject to change without notice. The PDF data sheet is binding.*