---
type: "Technical Data Sheet"
title: "CMC 70849 – Technical Data Sheet"
description: "CMC 70849 consists of a very tough and electrically resistant Kapton® film with high performance reserves and a temperature resistant silicone adhesive."
resource: "https://datasheets.cmc.de/pdf/cmc-70849-en.pdf"
tags: ["0.125  10%", "polysiloxane"]
language: "en"
product: "CMC 70849"
product_family: "cmc"
document_date: "2022-03"
status: "stable"
translation: "/cmc-70849-de.md"
generated: { by: "process:cmc-datasheets/0.1.0", at: "2026-09-23T16:02:40Z" }
sources:
  - id: "pdf"
    resource: "https://datasheets.cmc.de/pdf/cmc-70849-en.pdf"
    title: "Technical Data Sheet CMC 70849"
    author: "CMC Klebetechnik GmbH"
    last_modified: "2022-03-30T12:40:54Z"
---

# CMC 70849 – Technical Data Sheet

[PDF data sheet (binding)](/pdf/cmc-70849-en.pdf) · [Deutsche Version](/cmc-70849-de.md)

Issued: 2022-03

## Product description

CMC 70849 consists of a very tough and electrically resistant Kapton® film with high performance reserves and a temperature resistant silicone adhesive.

| Property | Value |
|---|---|
| Supporting base | Kapton® HN (polyimide) |
| Colour | brown |
| Substrate thickness in mm | 0.125  10% |
| Total thickness in mm | 0.160  10% |

## Adhesive properties

| Property | Value |
|---|---|
| Type of adhesive | polysiloxane |
| Adhesive strength in N/cm according to internal method PV 1006-32 (180° peel from steel) | 3 |

## Thermal properties

| Property | Value |
|---|---|
| Temperature performance (max.) in °C | 180 |
| Short term temperature performance in °C (ca. 1 hour) | 350 |
| Insulation class according to IEC 60085 | H |

## Electrical properties

| Property | Value |
|---|---|
| Breakdown voltage based on IEC 60243-1 in Veff. | ≥ 12'000 |

## Mechanical properties

| Property | Value |
|---|---|
| Tensile strength in N/cm | ≥ 250 |
| Elongation at break in % | ≥ 60 |

## Other properties

| Property | Value |
|---|---|
| Liner | fluorosiliconized PET, 50 µm |

® Registered trade mark 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.*