---
type: "Technical Data Sheet"
title: "MP 1221-003A – Technical Data Sheet"
description: "The adhesive tape MP 1221-003A consists of a black coloured PET film and a temperature resistant acrylic adhesive."
resource: "https://datasheets.cmc.de/pdf/mp-1221-003a-en.pdf"
tags: ["polyester (pet)", "0.025  10%", "acrylic"]
language: "en"
product: "MP 1221-003A"
product_family: "mp"
document_date: "2022-06"
status: "stable"
translation: "/mp-1221-003a-de.md"
generated: { by: "process:cmc-datasheets/0.1.0", at: "2026-09-23T15:59:09Z" }
sources:
  - id: "pdf"
    resource: "https://datasheets.cmc.de/pdf/mp-1221-003a-en.pdf"
    title: "Technical Data Sheet MP 1221-003A"
    author: "CMC Klebetechnik GmbH"
    last_modified: "2022-06-15T13:18:04Z"
---

# MP 1221-003A – Technical Data Sheet

[PDF data sheet (binding)](/pdf/mp-1221-003a-en.pdf) · [Deutsche Version](/mp-1221-003a-de.md)

Issued: 2022-06

## Product description

The adhesive tape MP 1221-003A consists of a black coloured PET film and a temperature resistant acrylic adhesive.

| Property | Value |
|---|---|
| Backing material | polyester (PET) |
| Colour | black opaque |
| Substrate thickness in mm | 0.025  10% |
| Total thickness in mm | 0.045  0.005 |

## Adhesive properties

| Property | Value |
|---|---|
| Type of adhesive | acrylic |
| Adhesive strength in N/cm according to internal method PV 1006-32 (180° peel from steel) | ≥ 1.5 |

## Thermal properties

| Property | Value |
|---|---|
| Temperature performance (max.) in °C | 130 |
| Short term temperature performance in °C (ca. 1 hour) | 175 |
| Insulation class according to IEC 60085 | B |

## Electrical properties

| Property | Value |
|---|---|
| Breakdown voltage based on IEC 60243-1 in Veff. | ca. 5'000 |

## Mechanical properties

| Property | Value |
|---|---|
| Tensile strength in N/cm | ≥ 35 |
| Elongation at break in % | ≥ 80 |

## Other properties

| Property | Value |
|---|---|
| Protective liner | none |

---

*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.*