Skip to main content

Din 53357 Pdf [updated]

Technical Report: DIN 53357 (Adhesion Testing of Plastic Sheets and Films)

DIN 53357 is a historical German technical standard established by the Deutsches Institut für Normung (DIN) that provides a consistent methodology for testing the mechanical adhesion properties of plastic sheets and films. While currently withdrawn, it remains a critical reference for quality assurance in industries such as packaging and manufacturing where laminated or coated materials are widely used. 1. Scope and Application

The primary purpose of DIN 53357 is to measure the bond strength or ply adhesion of laminates made from flexible materials.

Adhesion Testing: Evaluates how well different layers of a material (e.g., in multi-layer packaging or adhesive tapes) are bonded together.

Material Types: Specifically designed for plastic films, sheets, and laminated structures where layer separation (delamination) is a potential failure mode.

Quality Control: Manufacturers use this standard to verify that materials meet performance criteria for durability and functionality. 2. Testing Methodology

The standard defines procedures for the layer separation test (Trennversuch der Schichten).

Method A: A common variant of the test often performed without a roller to determine the force required to peel layers apart.

Calculation: Bond strength is typically calculated as an average based on several measurement points (often 10) spread evenly across a specified measuring distance.

Performance Metrics: Results are often expressed in units such as Newtons per width (e.g., 96N/5cm) to quantify the force needed for separation. 3. Current Status and Successors

As of October 1982, the definitive version of the standard was DIN 53357:1982-10. However, it has since been withdrawn and replaced by newer international and local standards to align with global trade requirements.

Withdrawal Date: The standard was formally withdrawn in November 2013. Recommended Successors: din 53357 pdf

DIN EN ISO 2411: Specifically for rubber- or plastics-coated fabrics.

DIN 55543-5: Specifically for the testing of packaging films. 4. Technical Considerations

When interpreting results from DIN 53357, technical laboratories like Innoform Testservice note that:

Bending Stiffness: The inherent stiffness of the laminate layers can influence the measured bond strength. Directly comparing results from laminates with different stiffness levels can lead to misinterpretation of the actual adhesive bond.

Environmental Factors: Tests may be conducted across varying temperature ranges (e.g., -40°C to +120°C) to simulate real-world usage environments. 5. Document Availability

Though no longer an active standard, the historical document is still accessible for research and legacy compliance: Formats: Available in PDF and Hardcopy. Languages: Typically published in German and English.

Procurement: Can be purchased through technical standards libraries like DIN Media or Intertek Inform.

DIN 53357:1982-10 TESTING OF PLASTICS SHEET - Intertek Inform

DIN 53357 is a withdrawn, legacy technical standard used to measure the adhesion strength of plastic sheets, laminates, and coated fabrics through methods like the 90-degree German Wheel Peel Test. While inactive since 2013, it remains a common reference in industry for quality control, often replaced in modern testing by standards such as DIN EN ISO 2411. For more details, visit DIN Media. DIN 53357-A (accredited) - FILK Test Lab

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). Technical Report: DIN 53357 (Adhesion Testing of Plastic

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. Overview DIN 53357 was a German standard specifically

DIN 53357: Testing of Leather – Determination of Tear Strength

Standard Classification: German Standard (DE) ICS Code: 59.140.30 (Leather and furs) Status: Superseded (Largely replaced by ISO 3377, but still referenced in legacy specifications and specific regional supply chains).

Overview

DIN 53357 was a German standard specifically describing the bending test for plastics and elastomeric materials. It defined how to determine flexural properties such as bending strength, bending modulus, and deflection behavior.

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)

How to Perform a DIN 53357 Test (Overview)

To understand the value of the PDF, you need to know the test procedure. Here is a step-by-step summary:

8. Calculation and Expression of Results

Calculate the tear strength for each specimen using the formula:

$$T = \fracF_maxt$$

Where:

Report the results as:

  1. Individual tear strength values for each specimen.
  2. The arithmetic mean of the values.
  3. The direction of the test relative to the backbone (parallel or perpendicular).

2. Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this standard:

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.

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