What is Peelable Sponge Foam Paper?
Jul 10, 2025
1. What is Peelable Sponge Foam Paper?
Peelable Sponge Foam Paper is a specialized release paper used in hot-press lamination processes. It typically uses a kraft paper or specialty paper backing, coated with a low-peel polyethylene (PE) film or silicone release coating. This allows for "peelable" properties when separating from hot-melt adhesives, PU foam materials, or thermally laminated surfaces.
This paper is typically sandwiched between the foam material and the press plate, or used for post-molding surface protection, providing anti-sticking, anti-indentation, isolation, and residue-free peeling.
2. Typical Application Scenarios in the Industry
| Application Fields | Purpose of Use |
|---|---|
| Mattress Manufacturing | Isolation between hot - pressed composite sponge layers, anti - adhesion and anti - residual glue |
| PU Foaming Industry | For the separation between molds/equipment and foaming materials |
| Shoe Material Lamination | Avoid adhesion during the lamination of multi - layer materials and improve the yield |
| Automotive Interior | Isolation and surface protection of soft - covered composite materials |
| Electronic Packaging | Clean isolation between anti - static foam and the product surface |
Core Advantages of Peelable Sponge Foam Paper
-Excellent Peelability
Moderate peel force allows for easy tearing after lamination without losing paper fibers or leaving adhesive residue.
-Strong Heat Resistance
Can withstand hot pressing temperatures of 120–180°C without bubbling, curling, or yellowing.
-Clean and Contamination-Free
The clean surface makes it suitable for PU foam and laminating processes requiring high cleanliness.
-High Customizability
We can customize weight, coating thickness, and color based on the width and temperature requirements of our customers' equipment.
-Improved Efficiency and Reduced Waste
Effectively avoids sticking, material waste, and equipment contamination during the lamination process.
Key factors to consider when purchasing Peelable Sponge Foam Paper
| Parameter Name | Suggested Value Range | Application Suggestion |
|---|---|---|
| Paper Grammage | 60gsm - 100gsm | The higher the grammage, the stronger the stiffness, suitable for heavy - load lamination |
| Coating Type | LDPE / HDPE / Release Silicone Oil | Select according to the use temperature and whether release function is needed |
| Coating Thickness | 10μm - 30μm | The greater the hot - pressing pressure, the thicker the coating is recommended to prevent penetration or cracking |
| Peel Force | 5g - 50g / inch | Can be adjusted according to the actual use |
| Surface Treatment | Spraying / Embossing / Smooth Surface | For example, if the foam is embossed, the surface needs to be matched with embossed paper to improve surface adhesion |
| Temperature Resistance Grade | ≥150°C | If higher temperature (>180°C) is needed, special high - temperature base material should be selected |
Comparison of Peelable Sponge Foam Paper vs. Ordinary Release Paper
| Performance Comparison Item | Peelable Sponge Foam Paper | Ordinary Release Paper |
|---|---|---|
| Peeling Performance | Controllable and clean peeling | Difficult or uneven peeling |
| Thermal Stability | Temperature resistance above 150°C | Prone to blistering and edge curling |
| Production Adaptability | Can be customized according to equipment | Size - limited |
| Application Reliability | No fiber shedding and no dust generation | Risk of debris shedding and contamination |
| Cost Control | Slightly higher initial cost, more economical in the long run | Low initial cost, low yield rate and prone to rework |
