In the field of cold chain logistics, the choice of insulation materials directly determines refrigeration efficiency, operational costs, and cargo safety. Kejia XPS extruded polystyrene foam boards stand out among numerous insulation materials due to their core feature of a closed-cell honeycomb structure, making them an excellent solution for cold storage, refrigerated vehicles, and cold chain packaging.

1. Thermal insulation: The "magic wand" in low-temperature environments

   Key data: The insulation effect of 20mm-thick XPS is approximately equivalent to that of 50mm EPS or 120mm cement perlite. Under low temperature conditions of -20℃, the thermal conductivity of ordinary XPS can still be maintained within 0.025 W/(m·K), while ordinary materials have already "broken down". This means that for the same insulation effect, XPS is thinner, lighter, and more space-saving - for refrigerated vehicles and cold storage facilities where every inch of space is precious, this translates into direct economic benefits.

2.Moisture and Water Resistance: Cold Chain High-Humidity Environments

What is the most feared for cold storage? Condensation, water absorption, and freeze-thaw damage.

The closed cell rate of XPS is as high as over 99%, with a volumetric water absorption rate of ≤1% and a water vapor permeability coefficient of only 63 ng/(Pa·m·s).

3.Compressive strength: the "tough nut" in heavy-load environments

When the density of XPS does not exceed 40kg/m³, its compressive strength can reach 350-700 kPa, and it is almost unaffected when immersed in water. The insulation for cold storage floors generally requires a compressive strength of ≥200kPa, while high-quality XPS specifically designed for cold storage can achieve a measured compressive strength of over 500kPa, fully capable of withstanding repeated crushing by forklifts.

4. Lightweight and Space Efficiency: The "Invisible Dividend" of Cold Chain Transportation

With the same insulation effect, its weight is only 1/3-1/2 of traditional materials, and the required thickness is 30%-50% thinner than that of traditional materials.

For refrigerated vehicles, every 1kg reduction in self-weight means an additional 1kg of cargo can be transported. For cold storage facilities, a 30% thinner insulation layer means a larger effective storage capacity. XPS can also be easily cut into irregular shapes, adapting to complex structures such as refrigerated vehicle bodies and cold storage corners, reducing installation gaps and improving space utilization.

5. Durability: "Long-termism" that remains unwavering for 30-50 years

This is the underestimated advantage of XPS: its insulation performance maintains over 95% of its initial value after 5 years of use, and still maintains over 80% after 50 years - this is the only insulation material that can achieve this:

（1）. Stable chemical properties, no aging, no decomposition, no mildew;

（2）. Operating temperature range: -50℃ to +75℃, covering the full temperature range from freezing (-18℃ and below) to refrigeration (0-4℃).

Compared to polyurethane: over time, the components evaporate, leading to a decrease in both insulation and flame retardancy, and the material becomes brittle and powdery - this is the truth behind why PU cold storage "uses more and more electricity as it ages".

6. Fire Safety: Class B1 Flame Retardant, the Baseline Guarantee for Cold Chain Scenarios

Fire prevention is a rigid demand in cold chain environments where chemicals such as disinfectants and defrosting agents are present.

The XPS flame-retardant type can achieve a B1 level of flame resistance (self-extinguishing upon removal from a fire), meeting the GB8624-2012 standard. Unlike PU, which experiences a significant decline in insulation performance after the addition of flame retardants, and where the flame retardants can evaporate over time without producing toxic or harmful gases during combustion.

7. Environmental Protection and Construction: Standard Equipment for a Green Cold Chain

Guangdong Kejia Energy-saving Technology Co., Ltd. specializes in XPS extruded boards and composite boards, ensuring your business is worry-free and assured.