Author: Site Editor Publish Time: 2025-09-05 Origin: Site
As an indispensable material in applications such as carbon fiber composites, electronic tags, tapes and medical dressings, the peeling performance of release paper directly affects the demolding effect and final use experience of the product. This article will explore the release force test standards and methods of release paper in depth, and combine specific application scenarios to provide practical technical references for procurement and R&D.
If you need to purchase or wholesale high-quality release paper, please contact professional release paper supplier Revolve CF, email: HarveyXu@revolve-cf.com, official website: https://www.revolve-cf.com.
Peel strength refers to the force required to tear the release paper from the surface of the adhesive material, usually expressed in Newton value per unit width (N/25mm or N/in). The peeling force should not be too large or too small:
Excessive peeling force: not conducive to automated peeling, increasing equipment load;
Excessive peeling force: may cause premature detachment during storage and transportation, affecting product quality.
| Type | Description |
| Initial peeling force | The result of peeling test immediately after lamination |
| Maintaining peeling force | The peeling value measured within a certain period of time (such as 24h) after lamination |
| Constant temperature peeling force | The peeling force tested at a certain temperature (such as 70°C), reflecting thermal stability |
| Wet heat peeling force | The peeling force measured in high humidity and high temperature environment, testing environmental adaptability |
In order to ensure the stability and controllability of release paper products, it is necessary to refer to the internationally accepted test standards.
| Standard Number | Standard Name | Scope of Application |
| ASTM D3330 | Pressure-Sensitive Tape Peel Adhesion Test | Tape and release paper |
| FINAT FTM 1 | 180 degree peel strength test | Self-adhesive material peel test |
| GB/T 2792 | Adhesive tape 180° peel strength test method | Chinese national standard |
| ISO 8510 | Rubber or plastic material peel strength test method | Wide international applicability |
| Standard | Typical Peel Angle | Test Method | Remarks |
| ASTM D3330 | 180 degrees | Manual/automatic peeling | Commonly used for tape and release paper |
| FINAT FTM1 | 180 degrees | Constant speed peeling | Widely used in Europe |
| GB/T 2792 | 180 degrees | Width 25mm sample | Mainstream testing method in China |
Different release papers have different requirements for peel force, so the test method also needs to be reasonably selected according to the application scenario.
Equipment requirements:
Peel tester (such as Instron, Labthink, etc.)
Standard tape
Temperature control environment (standard 23±2°C, humidity 50±5%)
Test process:
Apply the standard tape to the surface of the release paper to be tested;
Leave it for a certain time (such as 20 minutes) to make it stable;
Peel at an angle of 180 degrees and a speed of 300mm/min;
Record the average and maximum peel force values.
| Abnormal Situation | Possible cause | Solution suggestion |
| Peeling force is too large | Uneven coating of release agent/Poor material matching | Optimize coating process/Replace suitable release agent |
| Peeling force is too small | Insufficient adhesion of release layer | Increase thickness of release coating or adjust surface tension |
| Uneven peeling | Unstable coating equipment/Paper fiber breakage | Check equipment tension control system |
Release paper is widely used in many industries, and different industries have different requirements for its peeling performance.
During the production and demolding process of carbon fiber prepreg, the peeling force of release paper needs to be kept at a medium level to ensure smooth detachment after high temperature curing.
| Application Type | Recommended Peel Force Range (N/25mm) |
| Carbon fiber prepreg | 0.3 - 0.8 |
| Baking release paper | 0.5 - 1.0 |
There are high requirements for low peel force and low residue to avoid skin damage or label deviation.
| Application Direction | Recommended Peel Force |
| Medical dressing | 0.1 - 0.3 N/25mm |
| Electronic label | 0.2 - 0.5 N/25mm |
It is necessary to select high, medium or low peel force release paper according to the purpose.
| Ape Type | Peel Force Requirement |
| Double-sided tape | Medium (0.5 - 1.2) |
| Strong adhesive sealing tape | High peel force (>1.5) |
| Label printing release paper | Low peel (<0.5) |
Choosing the right release paper supplier is crucial for product quality control. It is recommended to refer to the following aspects:
Suppliers with ASTM, FINAT, and GB/T standard testing equipment can provide more accurate and stable product data support.
Different uses correspond to different peel forces. High-quality suppliers such as Revolve CF support customized release force parameters according to customer process conditions.
Enterprises with large-scale production capabilities and standardized warehousing management can provide wholesale and stable supply to ensure that the project is not delayed due to out-of-stock.
The release force test standards and methods of release paper are important technical bridges connecting R&D, production and application. Correctly understanding and mastering the peel force test method can not only improve product quality stability, but also help optimize production efficiency.
If you are looking for a professional release paper supplier, Revolve CF will be a trustworthy partner.
Contact: HarveyXu@revolve-cf.com
Official website: https://www.revolve-cf.com
