High-temperature insulation has always required a balance of thermal performance, durability, handling, and safety. As industrial requirements have evolved, so have the materials engineered to meet them.
Insulfrax® LT Blanket represents the continued advancement of low bio-persistent (LBP) alkaline earth silicate (AES) fiber technology, combining the advantages of AES insulation with improved thermal and physical performance.
Manufactured from AES wool, Insulfrax LT is designed for demanding heat-management applications. The fiber is considered low bio-persistent and is designed to allow rapid clearance from the lung following inhalation.
Insulfrax® LT was developed as an evolution of the earlier Insulfrax-S product, with improvements designed to raise the performance of the material across several important characteristics.
These improvements matter in real-world installations. Alkegen’s proprietary fiber technology creates spun fibers with lower shot content, producing a flexible, needled blanket with improved handling and tensile strength as well as lower thermal conductivity.
The result is insulation that can deliver strong thermal performance while remaining lightweight, flexible, resilient, and easier to handle in demanding industrial environments.
Temperature capability remains central to the Insulfrax® LT value proposition. The material has a classification temperature of 1200°C (2192°F), a continuous-use temperature of 1100°C (2012°F), and a melting point above 1330°C (2426°F).
Insulfrax® LT is also completely inorganic and will not generate smoke or fumes during use. Combined with low thermal conductivity, low heat storage, thermal-shock resistance, and good sound absorption, these characteristics make the blanket suitable for a broad range of high-temperature insulation requirements.
These properties are becoming increasingly relevant as data centers place greater emphasis on thermal management and fire protection. Insulfrax® LT can provide a high-temperature insulation solution for appropriate applications where temperature resistance, thermal control, and noncombustible inorganic material characteristics are important.
The opportunity also extends beyond the data center itself to the infrastructure required to power it.
As facilities require substantial, reliable power generation capacity, Heat Recovery Steam Generators (HRSGs) can become part of the supporting energy infrastructure. Insulfrax LT is specifically suited for HRSG duct insulation, along with gas and steam turbines, turbine exhausts, silencer panels, boilers, and duct insulation.
Insulfrax® LT demonstrates how AES fiber technology continues to advance. Improvements in thermal conductivity, fiber quality, strength, handling, and flexibility expand what low bio-persistent insulation can deliver.
For industries facing increasingly demanding heat-management requirements, including the rapidly expanding data center and power-generation markets, Insulfrax LT provides a proven next step in the evolution of high-temperature AES insulation.