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Multi-Layer Insulation (MLI) and Composite Multi-Layer Insulation (CMI) Technology for Spacecraft and Industrial Applications including Semiconductor, Cryogenic, and High-Temperature Systems
Multi-Layer Insulation (MLI) | Lightweight Vacuum-Compatible Thermal Control Blankets
Our Multi-Layer Insulation (MLI) technology was developed to overcome the extreme conditions faced by spacecraft and satellite missions, including vacuum environments with no convection, steep thermal cycling, and continuous radiation exposure. In these harsh conditions, all heat transfer occurs through radiation and conduction, requiring passive thermal control systems that can perform reliably without adding significant weight or bulk.
Our MLI systems achieve this by combining multiple reflective layers with precision engineered spacer materials, suppressing both radiative and conductive heat transfer. The result is high thermal resistance in an ultra lightweight, compact design that is fully vacuum compatible, low outgassing, and flame retardant, meeting UL 94-V0 classification for safety and reliability in space hardware.
Key Technology Features of MLI
- Optimized reflective-layer design for maximum thermal resistance
- Ultra-lightweight, compact build with full insulation performance
- Vacuum-compatible and low-outgassing for space hardware
- Spacer layers engineered to minimize conductive heat paths
- Stable performance under extreme temperature swings and radiation
- Proven in multiple national space projects with sustained in-orbit performance
Multi-layer insulation (MLI) blanket designed for spacecraft thermal protection
Composite Multi Layer Insulation(CMI) Technology and Multipurpose Polymer Insulation (MPI)| Cryogenic and Industrial Insulation
Composite Multi-Layer Insulation(CMI) applies performance principles proven in space to terrestrial environments that require vacuum compatibility, extreme temperature resilience, mechanical durability, lightweight construction, moisture resistance, and fire safety compliance. CMI combines multiple reflective and spacer layers in composite configurations to address not only conduction and radiation, but also convection heat transfer present in industrial environments. The technology maintains reliable performance under wide temperature fluctuations and ensures long-term stability for demanding applications, even where operating conditions may require consideration of sub-zero cryogenic ranges or high temperatures encountered in industrial processes.
For industrial markets, we offer the Multipurpose Polymer Insulation (MPI) product line, developed from CMI technology to meet the exacting requirements of complex equipment and process systems. MPI is engineered for a precise fit to equipment geometry while ensuring moisture resistance, vibration tolerance, and quick removal for inspection or maintenance. Its modular composite design allows optimization of thermal, mechanical, and weight characteristics according to each system’s temperature range, environmental exposure, and maintenance needs. In low-temperature ranges, MPI does not suffer from the hardening or cracking issues found in conventional polymer insulations, while in high-temperature ranges, it overcomes the fragility and limitations of traditional ceramic-based insulations, providing a new concept of thermal insulation.
These solutions are applied in vacuum semiconductor tools, cryogenic transfer lines, LNG and hydrogen pipelines, and high temperature industrial systems, consistently delivering high thermal efficiency, operational stability, and durability under demanding operating conditions.
MPI Pipe Insulation
MPI Panel Insulation
Multipurpose Polymer Insulation(MPI) Product Line | Advanced Industrial Thermal Insulation with High Durability, Low-Particulate Performance, and Polyimide-Based High-Temperature Stability
The MPI(Multipurpose Polymer Insulation) product family was developed from Composite Multi-Layer Insulation(CMI) technology to provide advanced thermal insulation solutions across diverse industrial environments. With a foundation of wide temperature operability and reliable insulation performance, the industrialized MPI line has expanded into specialized models tailored to distinct applications. MPI-S offers enhanced durability as a melamine foam–based insulation with reinforced surfaces, MPI-SP incorporates polyimide films for extended high-temperature thermal insulation, and MPI-L delivers low-particulate insulation blankets for cleanroom applications. Together, these models form a comprehensive portfolio capable of supporting semiconductor equipment insulation, LNG pipeline insulation, hydrogen pipeline insulation, vacuum chamber thermal insulation, and cryogenic insulation in both industrial and energy systems.
MPI-S: Standard Industrial Insulation
MPI-S is the standard industrial model developed to overcome the brittleness and performance limitations of conventional melamine foam. Highly cross-linked thermoset resin structure ensures stable insulation performance by minimizing deformation from curing, shrinkage, and expansion in open-cell configurations. Furthermore, through reinforced surface treatment, it achieves higher rigidity, moisture resistance, and long-term stability. This compact layered insulation ensures reliable performance across cryogenic and moderate temperature ranges while meeting UL 94 V-0 flame-retardancy and self-extinguishing standards. As a result, in cryogenic conditions below –100℃, MPI-S exhibits enhanced insulation efficiency compared to conventional polymer foams, maintaining stable performance without hardening or cracking.
Key Features
- Standard industrial insulation blankets for piping and process systems
- Nano-scale 3D thermoset resin network for stable, high-performance insulation
- Reinforced surface treatment for durability and moisture resistance
- Compensation for open-cell limitations with reflective outer layer and sealing tape
- Reflective outer layer and sealing tape to address open-cell limitations
- Operating temperature range: −200℃ to +250℃ (recommended ≤200℃)
- Improved thermal performance below −100℃
- Low outgassing insulation with stable performance under thermal cycling
- Long service life with minimal maintenance requirements
Panel Type MPI-S
MPI-SP: High-Temperature Performance Insulation
MPI-SP was developed to extend high-temperature insulation performance by incorporating polyimide film layers with superior thermal stability into the MPI-S matrix. The design also integrates an air-gap insulation layer, which suppresses convection and further enhances thermal resistance, broadening the operating range of MPI-S. Therefore, this composition provides high thermal resistance and stable operation up to 400℃. Depending on customer performance requirements, the design can be tailored to ensure reliable operation below this maximum temperature limit. With no particulate emission, very low moisture absorption, and minimal performance change over time, MPI-SP provides long-service insulation that ensures user and worker safety.
Building on this platform, the MPI-SPR variant integrates reflective films, which further suppress radiative heat transfer and convection, delivering enhanced shielding performance for semiconductor process equipment, exhaust insulation blankets, and heat shields operating under sustained high thermal loads.
Key Features
- Extended thermal insulation from cryogenic −200℃ up to 400°C
- Polyimide film-integrated design for superior thermal resistance and low thermal conductivity
- Air-gap insulation design to suppress convection and extend MPI-S performance
- Optional infrared-reflective insulation wrap (MPI-SPR) for enhanced radiation shielding
- No particulate emission, very low moisture absorption, and stable long-term performance
- Certified UL 94 V-0 flame-retardant insulation with self-extinguishing performance
Panel Type MPI-SP
MPI-L: Low-Particulate Insulation
MPI-L is an advanced version of MPI-S designed to minimize particulate emissions for cleanroom and semiconductor equipment applications. Retaining the broad temperature performance of the original model, MPI-L is engineered as a low-particulate insulation blanket that supports energy efficiency while meeting contamination control requirements. Its removable insulation jacket design ensures easy installation and maintenance without compromising performance, making it suitable for display manufacturing and vacuum chamber insulation covers in precision-driven environments.
Key Features
- Low-particulate insulation blankets for cleanrooms and contamination-sensitive facilities
- Maintains the full thermal insulation performance of MPI-S, including long-term stability and low moisture absorption, with enhanced cleanliness.
- Stable under vibration and extreme temperature cycling
- Ideal for semiconductor equipment insulation, display manufacturing, and vacuum chamber insulation covers
- Operating temperature range: −200℃ to +200℃
Comparison of Multipurpose Polymer Insulation(MPI) Product Lines
| Category | MPI-S | MPI-SP | MPI-L |
|---|---|---|---|
| Characteristics | Standard industrial thermal insulation with nano-scale 3D thermoset melamine foam structure for improved cryogenic efficiency | Polyimide film-integrated thermal insulation covering extended high temperature, air-gap insulation design to suppress convection, low moisture absorption, fugitive dust-free and stable over time | Low-particulate performance thermal insulation blankets, long-term stability and safe handling |
| Operating Temperature | -200℃ to +250℃ (recommended ≤200℃) | -200℃ to +400℃ | -200℃ to +200℃ |
| Key Materials & Structure | Compact layered melamine foam with reinforced thermoset structure | Polyimide-enhanced multilayer insulation wraps with integrated air-gap layer and optional reflective film (MPI-SPR) | Compact layered melamine foam with low particulate emission |
| Fire Safety | UL94 V-0 FMVSS 302 SE | UL94 V-0 FMVSS 302 SE | UL94 V-0 FMVSS 302 SE |
| Applications | Vacuum jacketed piping, cryogenic insulation, removable insulation blankets, LNG and hydrogen pipelines | Semiconductor equipment insulation, vacuum chamber thermal insulation, high-temperature industrial insulation, heat shields | Cleanroom insulation covers, semiconductor process tools, display equipment insulation |
Applications of Space-Proven Multi-Layer Insulation Technology in Space, Semiconductor, Cryogenic, Industrial, and Specialty Systems
Our insulation solutions leverage space proven multi-layer thermal control technology, adapted for demanding industrial environments. By integrating lightweight reflective layer construction with advanced spacer materials, these systems deliver stable thermal performance across diverse applications, from orbiting satellites to high vacuum manufacturing tools, cryogenic pipelines, and compact specialty systems, while meeting strict operational, safety, and durability requirements.
Multi-Layer Insulation(MLI) for Spacecraft and Satellites
Spacecraft and satellite systems operate in a vacuum with no convective heat transfer, requiring insulation that can suppress both radiative and conductive heat flow under steep thermal cycles and continuous radiation exposure. Our space-proven multi-layer insulation has been applied in major Korean satellite missions, demonstrating reliable thermal control in orbit.
It incorporates reflective-layer spacing optimized for orbital environments, ensuring optical stability for sensitive payloads, preventing thermal distortion of structural components, and maintaining alignment-critical systems over extended missions. These blankets meet strict low-outgassing and flame-retardant requirements demanded by satellite hardware, and can be integrated with secondary thermal control components such as heat pipes, Secondary Surface Mirrors (SSM), and Optical Solar Reflectors (OSR) to further enhance thermal stability and maintain precise thermal balance from launch through long-term operation in space.
Our Multi-Layer Insulation (MLI) Applied in a Space Project
Common Industry Applications: satellite payload thermal blankets, spacecraft component insulation, optical instrument thermal covers
Removable Heating Jackets and Thermal Blankets for Semiconductor Equipment
Semiconductor manufacturing equipment, particularly those used in vacuum processes such as deposition and etching, require precise temperature control to ensure product consistency, prevent contamination, and minimize particle generation.
To address this, our custom-fitted thermal blankets and heating jackets are engineered for complex equipment geometries, providing stable thermal performance across high-temperature and cryogenic zones while withstanding mechanical vibration and cleanroom requirements. Designed for rapid, tool-free removal, they enable maintenance without prolonged downtime, supporting energy efficiency and process stability in high-volume fabrication lines. Retrofitting options are available for existing systems without compromising equipment performance.
MPI-L insulation applied to semiconductor scrubber
Removable MPI-L insulation jacket details
Common Industry Applications: etching chamber insulation jackets, CVD tool thermal covers, vacuum pump heat blankets, cryogenic transfer line insulation for semiconductor fabs
Cryogenic Pipe and Tank Insulation for LNG and Hydrogen Storage
Cryogenic transfer and storage systems for LNG and liquid hydrogen face continuous boil-off risks from even small thermal leaks. Long runs of piping, complex bends, and multiple support points require insulation that sustains low thermal conductivity under severe temperature gradients.
Accordingly, our cryogenic insulation blankets combine multi-layer reflective barriers with moisture-resistant vapor layers, preventing both heat ingress and ice formation. Custom fabrication to pipeline geometry ensures tight seams, minimal installation time, and durability through repeated loading, transport, and storage cycles, maintaining product integrity and reducing operational losses.
Cryogenic Pipe Insulation
Common Industry Applications: LNG pipeline insulation, hydrogen fueling station lines, cryogenic storage vessel blankets
High-Temperature Industsrial Insulation for Furnaces, Reactors, Pipes, Ducts, and Heat Exchangers
Power generation and heavy industrial systems operate under sustained high-heat conditions, where thermal efficiency, safety, and maintenance access are equally critical. Space is often limited, requiring insulation that delivers high resistance in a compact form while withstanding vibration and mechanical stress.
Therefore,our Composite Multi-Layer Insulation designs employ tightly engineered reflective and spacer layers to suppress radiative and conductive heat transfer without excessive thickness. Proven in field installations, these solutions have demonstrated stable performance from cryogenic ranges (below –150°C) up to 400°C, delivering improved thermal efficiency, lowering surface temperatures for enhanced safety compliance, and maintaining performance under continuous vibration and thermal cycling. Lightweight construction reduces structural load, while custom-fitted fabrication accommodates complex geometries without rigid mold requirements and allows easy removal for maintenance.
MPI-SPR applied to industrial heat exchanger
Common Industry Applications: furnace wall insulation blankets, reactor vessel insulation covers, high-temperature duct wraps, industrial heat exchanger insulation, steam pipeline thermal jackets, kiln wall insulation blankets, incinerator shell covers
Specialty and Commercial Insulation for RVs, Camping, Portable Equipment, and Thermal Storage
Compact and commercial environments from Recreational Vehicle (RV) insulation, camping shelters, and portable enclosures to specialty containers and thermal storage units require insulation that manages condensation, blocks heat transfer, and resists moisture under all-weather operation. These systems often involve irregular geometries and strict weight limitations.
Our flexible composite insulation blankets provide high thermal resistance through lightweight layered construction that conforms to complex shapes. The design allows quick installation and removal without degrading performance, delivering energy efficiency, comfort, and durability across diverse climates and usage conditions.
Application of MPI in camper modules