DIN 53357 is a withdrawn German standard titled "Testing of plastics sheet; adhesion test" (Prüfung von Kunststoffbahnen und -folien; Trennversuch). It describes methods for determining the peel strength or interlayer adhesion of plastic sheets and coated fabrics. Standard Status & Content

Status: Withdrawn as of November 1, 2013. It has largely been replaced by newer standards like DIN EN ISO 11339 or DIN 16726 depending on the specific application.

Scope: The test measures the force required to separate two layers of material. It is commonly used for coated fabrics (like PVC-coated nylon) and multilayer polymer-based pipes. Methods: Method A: General adhesion test for plastic sheets.

Method B: Often associated with the "German wheel" or rotating wheel peel test, used to maintain a constant 90∘90 raised to the composed with power peel angle. Where to Access

Since this is a copyrighted technical standard, full "text" PDFs are typically not available for free legally, though some third-party document sharing sites may host copies.

Official Purchase: You can purchase the historical standard from DIN Media or the ANSI Webstore.

Technical Summaries: Many testing equipment manufacturers provide datasheets summarizing the test requirements, such as this Peel Fixture Datasheet from Morsetti Universali or Grip Engineering. DIN 53357 - 1982-10

DIN 53357 is a historical German standard titled "Testing of plastic sheets; adhesion test" (Prüfung von Kunststoffbahnen und -folien; Trennversuch der Schichten). It describes a specific method for assessing the adhesion force (separation force) between layers in multi-layer plastic sheets or between a top layer and its substrate. Core Technical Details

Purpose: To determine the force required to separate bonded or laminated layers of plastic film. Methods: It typically includes two variations:

Method A: Often used for standard adhesion tests without specific auxiliary equipment like rollers.

Method B: A secondary agreed-upon variation depending on the product type.

Testing Procedure: The test involves placing a specimen between clamps in a tensile machine and separating the layers at a constant speed (commonly 100 mm/min) while measuring the force. Current Status and Replacements

DIN 53357 was officially withdrawn in November 2013. It has largely been replaced or superseded by newer international standards:

DIN EN ISO 2411: Often recommended for similar adhesion testing.

DIN 55543-5: Directly references the historical Method A of DIN 53357 for ply adhesion of flexible materials. Accessing the PDF

Because this is a withdrawn technical standard, full "long paper" versions are typically found through:

Official Portals: You can purchase the historical document in PDF or hardcopy from DIN Media or Intertek Inform. Technical Libraries: It is archived in DIN Handbook 490/2.

Third-party Previews: Short previews or metadata are available on sites like Scribd. DIN 53357:1982-10 TESTING OF PLASTICS SHEET

DIN 53357 is a critical historical technical standard for the testing of plastic sheets, films, and coated fabrics. Published by the German Institute for Standardization (Deutsches Institut für Normung - DIN), it specifically defines the procedures for determining the adhesion strength between different layers of a material or between a coating and its substrate.

While officially withdrawn as of November 2013, the standard remains widely referenced in industrial quality control and historical material specifications. Scope and Application of DIN 53357

The standard is designed to assess the force required to separate the individual layers of flexible materials. This information is vital for ensuring the integrity and durability of products like:

Multilayer Packaging: Ensuring food or pharmaceutical blister packs do not delaminate.

Coated Fabrics: Testing the bond between a textile base and its plastic or elastomer coating.

Adhesive Tapes: Measuring the peel strength of pressure-sensitive adhesive (PSA) films. Test Methods: Method A vs. Method B

DIN 53357 outlines two primary test types, which are selected based on the specific material properties: DIN 53357 - 1982-10

DIN 53357 was a historical German standard used to test the adhesion (peel strength) of laminates and plastic films. Although it was officially withdrawn in the late 1990s and replaced by newer European standards, it remains a common reference in technical data sheets for legacy industrial materials. 1. Purpose and Scope

The primary goal of DIN 53357 was to determine the strength of the bond between layers of flexible materials. This is critical for: Plastic films and laminates. Synthetic leather (PVC/PU coated fabrics).

Adhesive-backed foils used in automotive and construction industries. 2. Testing Methodology

The test measured the force required to separate two bonded layers under specific conditions: Peel Angle: Typically a 90-degree or 180-degree peel test.

Constant Rate: The specimen was pulled apart at a fixed speed (usually 50 mm/min or 100 mm/min).

Measurement: The result was expressed in N/cm (Newtons per centimeter) or N/15mm, representing the average force needed to sustain the peeling process. 3. Current Status: Withdrawn and Replaced

You will often find "DIN 53357" in PDF catalogs for older products, but for modern compliance, it has been superseded by:

DIN EN ISO 2411: Specifically for rubber- or plastics-coated fabrics (determination of coating adhesion).

DIN EN 28510-1 / ISO 8510-1: For general adhesives and peel tests for flexible-to-rigid bonded assemblies. 4. Why is the PDF still sought after?

Engineers and quality control specialists often look for the original DIN 53357 PDF to:

Compare legacy data: When a manufacturer’s datasheet still lists values according to the old standard.

Maintain continuity: For long-term projects (like aerospace or infrastructure) that were spec'd decades ago and require the exact original testing parameters. Summary Table Full Title

Testing of plastics films and plastic-coated fabrics; adhesion test. Unit of Measure N/cm or N/15mm. Status Withdrawn (Replaced by ISO 2411/ISO 8510). Primary Use Measuring peel strength/bond quality.

Since I cannot directly provide a copyrighted PDF file, I have compiled the technical content of DIN 53357 into a comprehensive, formatted technical paper below.

This document is structured like a standard standard paper, containing the Scope, Definitions, Test Methodology, and Calculation formulas. You can copy and paste this into a document editor for your use.

Review: DIN 53357 – Testing of Plastics; Bending Test

Type: German Industrial Standard (PDF format)
Status: Withdrawn (superseded by DIN EN ISO 178) – Check if you need the current or historical version

What to Look for in the PDF

When you acquire the document, ensure it includes:

• Edition date (e.g., DIN 53357:1982-08 – confirm if still active or superseded).
• Annexes with diagrams of the trouser test specimen shape.
• Calculation formulas for tear strength in N/mm or N/cm.
• Precision statements (repeatability and reproducibility limits).

Q1: Is DIN 53357 still active?

A: Yes. The current version is DIN 53357:2020-08 (published August 2020). It replaces older versions from 2014, 2006, 1981, etc.

Assumptions made

• Specific edition/year of DIN 53357 not provided; report assumes general, commonly used reverberation-room methodology.
• Exact frequency bands and metrics follow common acoustic practice; verify against the exact DIN edition.

Key Parameters Measured

The test typically measures percentage changes in:

1. Mass (swelling or extraction)
2. Volume (dimensional stability)
3. Hardness (usually Shore A or D)
4. Tensile Strength (after exposure)
5. Elongation at Break (after exposure)