Peeling issue on PVC Coated Webbing
Apr 01, 2025
Leave a message
Peeling issue on PVC Coated Webbing
Peeling in PVC coated webbing is a common phenomenon, primarily due to the inherent limitations of PVC's adhesion to nylon, which is often used as the inner layer.
PVC is valued for its durability, flexibility, and resistance to moisture and chemicals. However, it lacks natural adhesion to fabrics like nylon. The smooth surface and chemical structure of nylon further hinder bonding, making peeling or delamination likely over time, especially under stress or environmental exposure.
Nylon, known for its strength and abrasion resistance, serves as an ideal core material for coated webbing.
Yet its non-porous surface complicates adhesion to coatings like PVC without specialized treatments.
Key factors contributing to peeling
1. Environmental Conditions
- Temperature extremes: High temperatures soften PVC, weakening adhesion; low temperatures make it brittle, causing cracks.
- Moisture/chemical exposure: Prolonged contact degrades PVC's adhesive properties.
2. Mechanical Stress
- Frequent friction, tension, or bending during use gradually weakens the bond.
Solutions to improve adhesion:
1. Surface Treatment for Nylon/ polyester webbing
- Plasma treatment: Enhances surface energy for better PVC adhesion.
- Chemical etching: Roughens the nylon surface to improve bonding.
2. Adhesive Enhancements
- Specialized adhesives: Use primers or heat-activated adhesives tailored for PVC-nylon bonding.
3. Optimized Coating Techniques
- Multi-layer coating: Apply PVC with intermediate adhesive layers.
- Precision heat sealing: Ensure proper temperature and pressure during manufacturing.
4. Quality Control Measures
- Adhesion testing: Conduct rigorous strength tests during production.
- Environmental simulation: Test durability under heat, cold, and moisture.
Conclusion
While peeling is common in PVC nylon coated webbing, the above methods can mitigate the issue.
Note that additives or treatments may alter the webbing's properties.
For higher durability, consider alternatives like TPU or silicone-coated webbing, though these options may involve higher costs.
Contact us for more information or free samples.
Email: sales03@gh-material.com
Mobile: (0086)15220576187