Multi-layer ceramic fiber composite insulation are effective products for thermal management, in particular where a maximum temperature reduction must be accomplished with the least amount of weight and in a minimum amount of space.
Fiberfrax® HSA™ Paper Composite Systems are a unique ceramic fiber insulation used in the fabrication of high temperature heat shield. Providing high temperature capability, HSA ceramic fiber is recommended for continuous use temperatures of 1260°C (2300°F), and in some cases short term exposure to the material softening point of greater than 1649°C (3000°F).
Multi-layers of a unique ceramic fiber paper are encapsulated between layers of high temperature woven textile and quilted by lock stitching in one-inch squares. HSA Systems’ excellent thermal resistance properties are related to the core material which is composed of high purity alumina-silica fibers. The fibers have a very fine diameter, and all unfiberized material has been removed. The fibers are randomly oriented to eliminate the need for an organic binder. Small cell structure, combined with the absence of unfiberized particles or loose fill, results in extremely low thermal conductivity. The high fiber index of HSA fibers offers a high resistance to mechanical and acoustical vibration. The material is not prone to settling or breaking down through internal abrasion. The addition of a textile covering and quilting the composite gives it strength, while at the same time allows the system to remain flexible and formable, providing ease of fabrication.
LTC HSA™ Systems is a unique ceramic fiber insulation constructed from multiple layers of ceramic fiber paper encapsulated between an outer covering of high temperature woven textile cloth and parallel stitched to form a flexible insulation pad. Providing very low thermal conductivity and superb high temperature insulation values, the recommended operating temperature of LTC HSA Systems is 1260°C (2300°F).
The excellent thermal resistance properties exhibited by LTC HSA Systems are a result of the unique lightweight ceramic fiber paper core material composed of fine diameter fibers. This core paper has a small cell structure; in addition, all unfiberized particles have been eliminated. This results in very low thermal conductivity and superb high temperature insulation values. The high fiber index results in high resistance to mechanical and acoustical vibration. If wet by water or steam, all LTC HSA Systems thermal and physical properties are restored upon drying. It also exhibits excellent chemical stability and resistance to attack from most corrosive agents. Exceptions include hydrofluoric acid, phosphoric acid and strong alkalies.
Refer to the product Safety Data Sheet (SDS) for recommended work practices and other product safety information.
For additional information on products, properties and performance, typical applications, or to identify the recommended product for your application, see the product information sheet listed above or contact the Unifrax Application Engineering Department at 716-768-6460.