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Scientific Perspective
The global refrigerated logistics industry faces a dual challenge: maintaining strict temperature stability for sensitive goods (like bio-pharmaceuticals and frozen foods) while simultaneously reducing fuel consumption and carbon footprints. Traditional insulation methods, primarily using standard Polyurethane (PU) foam or Extruded Polystyrene (XPS), require substantial thickness to achieve low U-values. This reduces the cargo space inside a reefer box and adds significant deadweight to the transport fleet. Vacuum Insulation Panels (VIPs) represent a major leap in thermal science, offering thermal conductivities that are 5 to 10 times lower than conventional insulation options.
At the center of a VIP is a porous core material—typically either fumed silica or fiberglass—which is evacuated and sealed inside a gas-tight envelope. By drawing a deep vacuum, gas conduction inside the core is virtually eliminated. Solid thermal conduction is also restricted by the minimal contact points of the nanoscale core structure. Thermal radiation is further minimized by opacifiers blended into the core material. The resulting thermal conductivity ($\lambda$) can reach as low as 0.0035 to 0.004 W/m·K. Compared to polyurethane foam which typically tests around 0.022 W/m·K, VIPs allow fleet operators to achieve the same or better thermal performance with a fraction of the insulation thickness.
However, implementing VIP technology inside the harsh, vibration-heavy environment of a refrigerated truck chassis requires careful engineering. Panels are subject to torsion, impact, thermal cycling, and moisture exposure. This is why leading companies rely on custom laminates, hybrid foam-VIP panel designs, and advanced edge seal protections to prevent puncture and protect the vacuum integrity over a multi-year service lifespan.
Engineered Custom Solutions
Product Details: Size: Customized | Thickness: 5-20mm. Engineered to prevent battery thermal propagation and optimize battery pack temperatures in electric vehicles.
Product Details: Size: Customized | Thickness: 5-50mm. Designed for thermal efficiency in high-temperature tanks, reducing heat loss by up to 40%.
Specialized elevator fireproof door thermal insulation systems engineered to meet international safety criteria under high-temperature conditions.
Custom shapes and sizes designed to fit complex vehicle contours and refrigeration units without losing vacuum integrity.
Flexible thermal insulation blankets designed for cylindrical pipes, industrial exhausts, and complex curved piping geometries.
Premium low thermal conductivity parameters for building envelopes, offering superior insulation values in minimal profile depths.
Engineered core and barrier film panels for vaccine storage boxes and cold chain logistics systems requiring multi-day temperature hold times.
Large-format fumed silica VIP panels designed for cold storage rooms and heavy-duty truck trailer panels.
About Zerothermo Technology
Zerothermo Technology Co., Ltd., a subsidiary of the CBVAC Group, is a national high-tech enterprise. Our headquarters is located in the Beijing Economic-Technological Development Area, with our primary production base in Nanchong City, Sichuan Province. This facility stands as one of China’s largest and most advanced production centers for vacuum technology application products.
We leverage decades of research and development to produce high-performance vacuum insulation panels, fireproof microporous insulation materials, and specialized components. Our state-of-the-art facilities ensure that every panel is manufactured to exact standards, providing consistent thermal performance across all logistics and industrial sectors.
Special sizes (beyond typical ANSI/ASME/DIN standards) produced according to client drawings or technical parameters.
Square, oval, and other custom shapes, ranging from oversized diameters (above 60 inches) to micro precision flanges.
Designed to maintain tight seal requirements in high-vacuum systems and manufacturing applications.
Market Insights
As logistics and transportation systems expand globally, sourcing managers must find a balance between high-end technical specifications and cost-efficiency. China has established itself as the global hub for VIP production due to integrated raw material supply chains, automated manufacturing facilities, and strict quality control measures. Rather than sourcing core components and barrier laminates from disparate regions, Chinese factories like Zerothermo integrate the entire process. This keeps costs competitive while maintaining trace-ability across all stages of production.
The primary cost driver in premium VIP panels is the core material. Fumed silica, known for its longevity and resistance to thermal aging compared to fiberglass, is abundant in China. Chinese manufacturers have developed proprietary formulations that optimize fumed silica density, improving mechanical stability while maintaining low overall thermal conductivity. Working directly with integrated factories allows global purchasers to secure consistent material quality, even during high-volume production runs.
A vacuum panel is only as reliable as its barrier film. Modern Chinese VIP producers use high-barrier multi-layer laminate films containing layers of metalized polyester (PET) or ethylene vinyl alcohol (EVOH). These films limit the diffusion of water vapor and atmospheric gases into the evacuated core. The resulting leak rates are kept under $1 \times 10^{-12} \text{ mbar·l/s}$, ensuring a service lifespan of 15 years or more under typical operating conditions.
Precision and consistency are critical when sealing vacuum panels. Leading facilities utilize automated, multi-chamber vacuum packing systems that monitor sealing temperatures, pressures, and cycle times in real time. This minimizes human error, resulting in consistent thermal performance and high quality across production batches.
Why Work With Us
Our manufacturing and quality assurance processes follow strict international criteria, guaranteeing reliable performance in global applications.
Our engineering team can design specialized panel geometries, customized cutouts, and hybrid PU/VIP configurations to match your exact requirements.
Equipped with large-scale production facilities in Sichuan, we handle major fleet and construction orders efficiently, maintaining reliable lead times.
We work with established logistics networks to ensure secure packaging and reliable transport for international shipments.
We work closely with clients from initial concept and design optimization through to full-scale manufacturing, providing engineering support and quality verification at every step.
Real World Application
Vacuum Insulation Panels are used across a wide range of industries where temperature stability is critical. Standard insulation materials are often too bulky or inefficient to meet modern energy-saving requirements. By utilizing VIPs, companies can achieve high thermal performance within compact spaces, helping to reduce energy use and carbon footprints in commercial and industrial settings.
In addition to cold chain logistics, VIPs are increasingly utilized in building envelope designs for green construction, high-temperature industrial piping, and custom cold storage units. The high thermal resistance helps maintain target internal temperatures with thinner wall profiles, making them highly suitable for space-constrained urban retrofits and high-density transportation fleets.
Maintaining temperature-controlled shipping environments for biological products and vaccines.
High-efficiency thermal wall systems designed to support energy savings and green building targets.
Thermal shielding designed to handle heat retention in industrial kilns, piping networks, and appliances.
Specialized lightweight insulation solutions designed for mobile living spaces and modular cabins.
Pharmaceutical Cold Chain: Safe transport of vaccines and biologics requires reliable temperature control, often in ultra-low ranges ($-70^\circ\text{C}$ to $-20^\circ\text{C}$). Utilizing fumed silica VIPs in shipping containers provides reliable passive temperature maintenance for up to 120 hours, helping to safeguard product quality throughout transit.
Architecture and Buildings: Modern building codes require low U-values to reduce operational energy use. Standard insulation materials require thick profiles, reducing usable internal space. Incorporating vacuum insulation panels into wall assemblies allows designers to meet strict energy standards with thin profiles, making them highly suitable for historic retrofits and high-value urban developments.
Industrial High-Temperature Systems: High-temperature industrial equipment requires reliable thermal protection. Nanostructured microporous insulation blankets can withstand continuous operating temperatures up to $1000^\circ\text{C}$, reducing outer shell temperatures and protecting nearby electronics and operators from heat exposure.
Proven Deployments
Industry Insights & Updates
Committed to supporting sustainable building practices, Zerothermo Technology focuses on the development of high-efficiency insulation solutions to promote industrial energy conservation.
Purchasing Knowledge Base
Fumed silica VIPs generally maintain vacuum integrity and insulation performance for over 15 years in typical transport environments. The nanoscale pore structure of fumed silica is less prone to aging compared to fiberglass cores, making it a reliable option for long-term fleet service.
VIPs are typically integrated within a hybrid sandwich panel assembly. They are surrounded by a protective layer of polyurethane (PU) foam and enclosed by glass-reinforced plastic (GRP) or aluminum outer skins. This configuration protects the vacuum envelope from direct impacts and vibrations.
No, VIPs cannot be cut, drilled, or modified after fabrication, as puncturing the outer envelope will loss the vacuum seal and reduce the panel's insulating performance. All sizes, shapes, and cutouts must be detailed during the design phase so the panels can be custom-manufactured to fit.
Fumed silica cores offer a very small pore size, allowing them to maintain low thermal conductivity ($\approx 0.004 \text{ W/m·K}$) even under partial vacuum losses. Fiberglass cores can achieve lower initial thermal conductivity ($\approx 0.002 \text{ W/m·K}$) under deep vacuum, but require a high vacuum level that is more sensitive to aging and gas penetration over time.
To reduce thermal bridging, panels are typically installed in a staggered double-layer configuration, or joints are filled with low-conductivity materials like polyurethane foam or aerogel strips. This helps maintain a continuous thermal barrier across the entire assembly.
Get in Touch
We provide integrated vacuum insulation solutions tailored to your technical requirements. Contact us to discuss your project specifications and obtain a quote.
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