ASTM D6862 Resistance-to-Peel Strength of an Adhesive
The determination of the resistance-to-peel strength of an adhesive is conducted using the ASTM D6862 test method. The test is performed between one rigid adherend and one flexible adherend. The test of ASTM D6862 is also explicitly designed to measure the elasticity of the adhesives.
TRUSTED BY
Precision-driven testing for dimensional accuracy and compliance
- Overview
- Scope, Applications, and Benefits
- Test Process
- Instrumentation
- Results and Deliverables
Overview
ASTM D6862 is the most common method for determining the 90-degree peel resistance of adhesives. This test method is used to determine the resistance-to-peel strength of an adhesive bond between a rigid and a flexible adherend, tested at approximately 90 degrees under specified preparation and testing conditions.
This test method plays a critical role in acceptance and quality control testing. The thickness of the adherends significantly affects the test values. As a result, the thickness of the adherends used to make the test specimens shall be specified in the material specification.
Scope, Applications, and Benefits
Scope
ASTM D6862 test method is used to determine the resistance-to-peel strength of an adhesive. If the adhesive’s cohesive strength is low, even strong glues may perform poorly. In labs and businesses, the test method is used for acceptability and quality control testing. Furthermore, because the 90-degree peel test often yields the lowest peeling force, it is among the most popular.
Applications
- To determine how an adhesive behaves under real peeling stress.
- For product development during the formulation and optimization of a new adhesive system.
- For quality control and assurance to ensure batch-to-batch consistency of adhesives.
- Different industrial applications, such as automotive, electronics, and packaging.
Benefits
- Quantitative measurement.
- It helps engineers select the right adhesive for specific applications.
- Long-term performance of bonded assemblies.
- Product safety and customer satisfaction.
Testing Process
Sample Preparation
& Bonding Adhesive is applied to the selected substrate and bonded under specified conditions.
1Specimen Cutting & Conditioning
Bonded samples are cut into uniform test strips and conditioned prior to testing.
2Test Setup & Mounting
Specimen is mounted on UTM with ASTM D6862 fixture at the required peel configuration.
3Peel Testing & Data Collection
Peel force is applied at a constant rate while force data is continuously recorded.
4| Parameter | Details |
|---|---|
| Specimen Types | Bonded adhesive strips or laminates prepared with flexible-to-rigid or flexible-to-flexible substrates |
| Grip Separation | As required to accommodate specimen length and ensure steady-state peeling |
| Test Speed | Constant crosshead speed as specified in the test method or agreed test plan |
| Force Accuracy | The load measurement system meets ASTM accuracy requirements |
| Strain Measurement | Not applicable; peel force measured as force per unit width |
| Test Output | Average peel force per unit width (N/mm or N/m) and peel force vs displacement curve |
Instrumentation Used for Testing
- Universal Testing Machine (UTM) – Applies controlled peel force at a constant rate
- Load Cell – Measures peel force accurately
- Peel Test Fixtures / Grips – Holds bonded specimens at specified peel angle
- Crosshead Speed Controller – Maintains the required test speed
- Data Acquisition System / Software – Records force–displacement data
Results and Deliverables
- Determines the adhesive’s peel strength.
- Peel strength is defined as the average force required to remove the adhesive from the substrate.
- The test is performed at a 180° peel angle.
- Results are expressed as force per unit width.
Frequently Asked Questions
The test ensures adhesives meet bonding performance requirements, helping in quality control, product reliability, and material selection for laminates, tapes, films, and other bonded systems.
A universal testing machine (UTM) with appropriate peel fixtures is used to apply a controlled peel force at a specified angle and rate.
Peel strength depends on adhesive type, substrate material, surface preparation, coating thickness, curing conditions, peel angle, and testing speed.
Case Studies
In-depth examination of genuine material testing solutions
Dopant and ultra-low concentration elemental analysis using Scanning…
Dopant and ultra-low concentration elemental analysis using Scanning…
EELS analysis of gate and channel is performed on fin field-effect transistors (finFETs). Scanning transmission electron...
Read Case StudyAnalysis of degradation of PVC pipe using Fourier…
Analysis of degradation of PVC pipe using Fourier…
Introduction PVC is the polymer primarily used to make pipes for plumbing, drainage, and electrical conduits....
Read Case StudyNano-scale roughness measurement of Si-wafers by Atomic Force…
Nano-scale roughness measurement of Si-wafers by Atomic Force…
Nano-scale surface roughness is a critical parameter in fabricated thin-films that are used in optics, solar...
Read Case Study
Request a Quote
Submit your material details and receive testing procedures, pricing, and turnaround time within 24 hours.
-
Quick Turnaround and Hasslefree process -
Confidentiality Guarantee -
Free, No-obligation Consultation -
100% Customer Satisfaction
