As the cold chain logistics and food preservation industries rapidly develop, the choice of insulation sandwich panels for cold storage becomes crucial. Currently, there are two main types of cold storage insulation sandwich panels on the market: Polyurethane sandwich panels, AKA PU or puf sandwich panels and Expanded Polystyrene (EPS) sandwich panels. We will compare the advantages and disadvantages of these two materials in detail based on industry trends over the past decade.
Advantages of puf panel for cold room：
1. Excellent Insulation Performance: PU cold storage sandwich panels or puf panel for cold room are renowned for their superior insulation performance. Their thermal conductivity is low, at about 0.024 W/m·K, compared to EPS panels' 0.039 W/m·K. This lower thermal conductivity means better insulation, helping to reduce the energy consumption of cold storage and lower operating costs.
2. High Structural Strength: PU cold storage sandwich panels or puf panel for cold room typically have a density between 40-42 kg/m³, much higher than EPS panels' 20-30 kg/m³. This gives PU cold storage panels higher mechanical strength and better compressive performance, making them more durable and longer-lasting in cold storage construction.
3. Excellent Fire Performance: Modern PU cold storage panels or puf panel for cold room often use flame-retardant materials, achieving a B1 or grade B in UL 723 standard (hardly flammable) fire rating, whereas standard EPS panels have poor fire performance, only reaching a B3 or fail in UL 723 standard (flammable) rating. The higher fire rating of PU cold storage panels provides greater safety, especially in cold storage environments with strict fire safety requirements.
PU sandwich pannel EPS
Advantages of EPS Cold Storage Panels：
Lower Cost: EPS sandwich panels have lower production costs, making their market price relatively cheaper. This is an important consideration for cold storage construction projects with limited budgets.
Industry Trend Analysis：
In the past decade, with the increase in energy conservation, emission reduction, and environmental awareness, PU cold storage panels or puf panel for cold room have gradually occupied a larger market share. Their excellent insulation performance and longer service life make PU cold storage sandwich panels outstanding in energy efficiency and long-term cost control. Additionally, with technological advancements, the production process of PU cold storage sandwich panels has been continuously improved, reducing production costs and further enhancing their market competitiveness.
Moreover, the standards and safety regulations for cold storage construction have become increasingly stringent in recent years, especially regarding fire safety. The excellent fire performance of PU cold storage sandwich panels gives them an advantage in meeting these new standards, which is a key factor driving their market share growth.
Conclusion：
In summary, although EPS cold storage panels have certain advantages in terms of cost and ease of installation, PU cold storage sandwich panels stand out in the field of cold storage construction with their superior insulation performance, higher structural strength, and excellent fire performance. Considering industry trends, PU cold storage sandwich panels have a brighter market outlook in the future, especially in modern cold storage construction that emphasizes energy efficiency and safety, their advantages will become more prominent.
