---
type: "Technical Data Sheet"
title: "CMC 29650, 29651 – Technical Data Sheet"
description: "CMC 29650 and CMC 29651 are fluorosilicone coated polyester films which are often used as a liner for pressure sensitive adhesives."
resource: "https://datasheets.cmc.de/pdf/cmc-29650-29651-en.pdf"
tags: ["pet", "ca. 0.050 mm"]
language: "en"
product: "CMC 29650, 29651"
product_family: "cmc"
document_date: "2021-11"
status: "stable"
translation: "/cmc-29650-29651-de.md"
generated: { by: "process:cmc-datasheets/0.1.0", at: "2026-09-23T16:15:39Z" }
sources:
  - id: "pdf"
    resource: "https://datasheets.cmc.de/pdf/cmc-29650-29651-en.pdf"
    title: "Technical Data Sheet CMC 29650, 29651"
    author: "CMC Klebetechnik GmbH"
    last_modified: "2021-11-18T14:37:18Z"
---

# CMC 29650, 29651 – Technical Data Sheet

> CMC 29650           one side release CMC 29651           both sides release

[PDF data sheet (binding)](/pdf/cmc-29650-29651-en.pdf) · [Deutsche Version](/cmc-29650-29651-de.md)

Issued: 2021-11

## Product description

CMC 29650 and CMC 29651 are fluorosilicone coated polyester films which are often used as a liner for pressure sensitive adhesives. Because of the special highly repellent fluoropolymer coating the material is usually also suitable as a cover for silicone adhesive tapes. However due to the numerous different adhesives available for adhesive tapes the suitability of the material for the respective application should carefully be checked by the end customers themselves.

| Property | Value |
|---|---|
| Substrate material | PET |
| Colour | colourless |
| Substrate thickness | ca. 0.050 mm |
| Density | 1.40 g/cm³ |
| Shrinkage MD / TD (machine direction) / (transverse direction) 30 min at 150°C | up to ca. 1.8% / 1.2% |

## Coating properties

```text
                                                      fluorosilicone on one side       (CMC 29650)
 Type of coating                                      fluorosilicone on both sides     (CMC 29651)
```

| Property | Value |
|---|---|
| Release force based on FTM 10 measured with 3M tape 1280 | ca. (5 - 25) g/in |

## Mechanical properties

| Property | Value |
|---|---|
| Tensile strength | ≥ 19 kg/mm² |
| Elongation at break | ca. (60 - 150)% |

## Other properties

| Property | Value |
|---|---|
| All information transferred from the original data sheets of our suppliers. | 11/21 |

---

*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.*