Low Temperature Insulations: Thin, Powerful, and Lasting

The Ultimate Insulation for Demanding Cold Applications

TT core is a high-performance microporous insulation panel specifically engineered for use in Vacuum Insulation Panels (VIPs). Its exceptional thermal efficiency and space-saving capability are driven by an ultra-low thermal conductivity. The optimized microporous structure, enhanced with opacifiers, suppresses all three modes of heat transfer — conduction, convection, and radiation — pushing thermal performance close to their physical limits under atmospheric pressure.

In precision-controlled environments, cold chain logistics, and commercial refrigeration, space is revenue and energy is cost. Traditional insulation often requires impractical thickness to meet modern performance standards, compromising valuable capacity and operational efficiency.

This is the core challenge that TT core solves. By harnessing the exceptional properties of microporous silica, our technology enables VIPs to deliver radically superior thermal resistance in a fraction of the space. This means you can design thinner cabinet walls for greater storage volume, achieve longer, more stable storage cycles with less energy, and build systems engineered for reliable performance measured in decades, not years.

Our advanced materials are not just components; they are the foundation for building smarter, more sustainable, and more profitable cold environments.

MICROPOROUS SILICA CORE MATERIAL – THE CORE COMPETENCE

Our TT core series microporous insulation panels are the engineered heart of high-performance Vacuum Insulation Panels (VIPs). Designed for demanding cold insulation applications, they deliver unmatched thermal efficiency and reliability.

Formulated with advanced microporous technology, these panels enable VIPs to achieve an initial thermal conductivity as low as 0.004 W/(m•K). With over ten specialized material formulations, we tailor solutions to meet specific thermal, mechanical, and environmental requirements in cold storage, refrigeration, and cryogenic systems.

To ensure seamless integration into your production, we provide precision cutting and wrapping services. For large-volume projects, we offer custom mold design to optimize material yield and minimize waste—helping you enhance manufacturing efficiency while achieving exceptional insulation performance.

Microporous insulation

WHY MICROPOROUS SILICA IS THE SUPERIOR CORE CHOICE

  • Longest Service Life: Our microporous silica core delivers exceptional durability, enabling VIPs to maintain peak performance for 50 years or more—the longest lifespan among core materials.
  • Exceptional Thermal Performance: With a core conductivity of ~0.02 W/(m•K) and a resulting VIP conductivity as low as 0.004 W/(m•K), it achieves superior insulation in a much thinner profile, saving critical space.
  • Excellent Long-Term Stability: Performance remains highly stable under varying temperatures and pressures, effectively extending VIP service life.
  • High-Temperature Resilience: Withstands significantly higher temperatures than organic-based cores, making it suitable for broader applications.
  • Controlled Performance Retention: Even in the rare event of vacuum loss, the nanoporous structure ensures thermal conductivity rises only minimally (e.g., to ~0.020 W/(m•K)), preserving substantial insulation value and system safety.
  • Superior Workability: The rigid, uniform structure allows for clean, precise cutting, enabling custom shapes with neat edges for seamless, low-thermal-bridge installation.
  • Fire Safety: Inorganic and non-combustible, contributing to safer building and appliance designs.
  • Structural Integrity: Maintains shape under moderate compression, preventing collapse and thermal bridging.
  • Health & Environmental Safety: Non-hazardous, REACH-compliant, low in disposal cost, and safe for handling throughout its lifecycle.
Microporous insulation

WHY VIPs WITH FUMED SILICA CORES OFFER THE BEST LIFETIME PERFORMANCE?

While the high-barrier envelope preserves the vacuum, the core material fundamentally determines VIP performance and longevity. As internal pressure gradually increases over time, the degradation rate depends entirely on the core.

Our microporous silica cores are specifically engineered for optimal long-term stability under these conditions (see performance chart). This intrinsic stability, paired with a high-barrier foil (typically limiting pressure rise to <0.5 mbar/year*), ensures the most reliable and durable insulation solution available.

Rate varies with ambient temperature.

Core material Initial pressure Pressure for 8 mW/m.K
Glass fiber 0.01 mbar 1.0 mbar
Fumed silica 0.5 mbar 100 mbar

DURABILITY AND LONG-TERM PERFORMANCE OF OUR VACUUM INSULATION PANELS

As a core material specialist, we also supply complete VIPs featuring our microporous silica core. Each panel is encapsulated in an ultra-high-barrier film and vacuum-sealed, delivering exceptional and consistent thermal performance.

These panels offer key advantages: optimized space and thickness, extended storage cycles, and proven long-term durability. They are self-supporting, pressure-resistant, and easy to install. Through specialized processing and innovative formulations, our VIPs achieve an outstanding and stable thermal resistance (R-value).

TYPICAL APPLICATIONS OF FUMED SILICA LOW TEMPERATURE VACUUM INSULATION PANELS

Superior Performance Icon

Temperature controlled packaging (TCP)

Storage of vaccines, medical, and blood samples

Storage of fresh food or other temperature-sensitive products

Superior Performance Icon

Household appliances

Energy-saving refrigerators

Water heaters

Cold storage units

Heated food display unit

Boilers and warm water storage tanks

Superior Performance Icon

Buildings & Construction

Designed for zero-energy and plus-energy buildings — including flat roofs and floor systems — these microporous insulation solutions deliver outstanding thermal performance.

With their extremely low thermal conductivity, they significantly reduce heat loss and maximize energy efficiency, making them ideal for demanding, space-constrained building applications.

Superior Performance Icon

Cold chain transportation

Cold containers

Refrigerated trucks

Vehicle refrigerator

Other cold storage areas

OUR PRODUCTS FOR LOW TEMPERATURE INSULATION APPLICATIONS

TT core

TT core is a microporous insulation panel optimized for use in Vacuum Insulation Panels (VIPs). The Unicorn VIP core material features a very low density, which results in the...

TT core is a microporous insulation panel optimized for use in Vacuum Insulation Panels (VIPs). The Unicorn VIP core material features a very low density, which results in the lowest possible thermal conductivity, typically around 4 mW/m K. Despite its extremely low density, the panels are easy to handle.

Unicorn offers customized cutting services. For large volume orders, we can utilize customized pressing molds to minimize cutting waste. As an option, the core can be wrapped in non-woven fabric to reduce dust during the evacuation process.

Typical applications:

TT core can be used as the core insulation for Vacuum Insulation Panels (VIP) for:

  • Building and construction industry: insulation of roofs, floors, facades.
  • Temperature controlled packaging(TCP): provide insulation for cool transportation of boxes and packets containing drugs, medicines and vaccines.
  • Household appliances: water heaters, boilers, refrigerators, cold storage units, vending machines, heated food display units.
  • Transport (marine, rail, automotive, aerospace): used to maintain cabin comfort, cold storage areas.

TT core eco

TT core eco is a microporous insulation panel with a cambered edge designed for use in Vacuum Insulation Panels (VIPs). TT core eco can be produced at very low...

TT core eco is a microporous insulation panel with a cambered edge designed for use in Vacuum Insulation Panels (VIPs). TT core eco can be produced at very low densities, which enables it to achieve even lower thermal conductivities than a standard VIP (<4 mW/m K).

The external non-woven fabric provides a dust-proof yet air-permeable cover around the microporous core. As a result, the product can be directly incorporated into your manufacturing process before drying and vacuuming.

TT coolvac

TT coolvac is a high-performance Vacuum Insulation Panel based on a fumed silica microporous core material – TT core series products. The core is sealed in a high-barrier multilayer...

TT coolvac is a high-performance Vacuum Insulation Panel based on a fumed silica microporous core material – TT core series products. The core is sealed in a high-barrier multilayer foil, which contributes to extremely low conductivity (0.004 W/m K) and a long service life of up to 50 years.  TT coolvac offers straight edges and best-in-class stability, ensuring quick and easy installation while minimizing damage-related loss.

In comparison to other core materials VIPs, TT coolvac demonstrates a very low volume increase due to its minimal expansion characteristics. It also maintains a very low initial lambda under normal pressure, enabling cool box manufacturers to achieve very stable and long-lasting service performance during transportation.

Typical applications:

  • Building and construction industry: insulation of roofs, floors, facades.
  • Temperature controlled packaging(TCP): provide insulation for cool transportation of boxes and packets containing drugs, medicines and vaccines.
  • Household appliances: water heaters, boilers, refrigerators, cold storage units, vending machines, heated food display units.
  • Transport (marine, rail, automotive, aerospace): used to maintain cabin comfort, cold storage areas.

FAQ – LOW TEMPERATURE APPLICATION WITH UNICORN MICROPOROUS

What makes fumed silica VIPs superior to traditional insulation?+
Fumed silica VIPs offer 10 times better thermal performance (λ ≈ 0.004 W/m•K) than traditional materials like foam or mineral wool. They achieve the same insulation with 90% less thickness, saving space while meeting high energy standards.
How long do VIPs last, and what happens if the vacuum is lost?+
With proper handling and high-barrier film, VIPs maintain optimal performance for 50+ years. Even if vacuum integrity is compromised, the fumed silica core's microporous structure ensures graceful degradation, retaining significant insulation value (≈ 0.02 W/m•K) unlike other cores.
Are VIPs safe and environmentally friendly?+
Yes. Our VIPs are non-hazardous, REACH-compliant, and free from harmful VOCs. The core is inorganic, non-combustible (Class A fire rating), and generates low disposal costs.
Can VIPs be cut or shaped on-site?+
No. VIPs are factory-sealed units and must be ordered in exact dimensions. On-site cutting breaks the vacuum, permanently compromising performance. We provide custom pre-cut panels for precise installation.
What is the temperature range for your VIPs?+
Our standard VIPs operate reliably between -80°C to +80°C. For higher temperatures (up to +500°C), we offer specialized high-temperature core variants.
Do you offer technical support or performance simulation?+
Yes. We provide free technical consultations, thermal performance simulations (U-value/R-value calculations), and custom engineering support for complex projects.
What types of core material formats can you provide?+
We offer our microporous silica core material in versatile formats to suit different production needs, including standard rectangular panels (up to 1300 mm x 1000 mm), custom pre-cut pieces tailored to your VIP dimensions, and molded shapes for complex geometries. We also provide optional pre-wrapped cores and specialized formulations for enhanced strength, wider temperature ranges, or improved hydrophobicity. Our technical team can recommend the optimal format based on your specific application, performance targets, and integration process.

Discover how Unicorn microporous insulation delivers superior low-temperature performance and space-saving efficiency.

Contact Us for More Information