While EPS has long been valued for its insulation performance and low cost, it presents clear limitations:
- Difficult to recycle in many regions
- Bulky and inefficient in storage and transport
- Growing regulatory pressure
At the same time, companies such as TemperPack are accelerating the development of fiber-based insulation, signaling a broader shift in the industry.
Among the emerging alternatives, natural fiber materials such as wool and recycled cotton are gaining attention.
From a technical perspective:
Thermal Performance
Natural fibers trap air within their structure, providing effective insulation comparable to traditional materials in many short- to mid-range shipping scenarios.
Flexibility & Packing Efficiency
Unlike rigid foam, fiber insulation can conform to different box sizes, improving space utilization and reducing shipping costs.
Sustainability
Wool and recycled fibers offer a more environmentally friendly profile, with better end-of-life options compared to EPS.
However, challenges remain, including:
- Consistency of material density
- Moisture management
- Standardization across applications
Our approach focuses on optimizing fiber density, layering structure, and cooling configuration, enabling wool-based insulation systems to deliver stable performance in real-world cold chain conditions.