Excelfrax Microsporous Insulation 1800 Board Unifrax Corporation′s Excelfrax® product line, based on advanced microporous insulation technology, is a family of products which all exhibit superior insulating characteristics. Excelfrax microporous insulation is composed of inorganic oxides, primarily fumed silica Silicates and opacifiers are added to improve the material performance.
Microporous materials are very efficient insulation products. These products actually have thermal conductivity values lower than still air. This performance is based on the ability of microporous insulation to block the three modes of heat transfer (i.e.. conduction, convection, and radiation).
Excelfrax 1800 Board is a high-temperature, rigid, microporous material specifically designed for applications where a strong, highly efficient insulating material is required. Excelfrax 1800 Board is available in thicknesses up to 2′′ and can be field fabricated to meet specific application requirements. In order to protect the material from wetting agents and to aid in handleability, Excelfrax 1800 Board is available with several covering options:
No covering
Edge protection with glass scrim
Full encapsulation with glass scrim or aluminum foil
Excelfrax 200 VIP Insulation Unifrax Corporation′s Excelfrax® product line, based on advanced microporous insulation technology, is a family of products which all exhibit superior insulating characteristics. Excelfrax microporous insulation is composed of inorganic oxides, primarily turned silica Silicates and opacifiers are added to improve the material performance.
Microporous materials are very efficient insulation products These products actually have thermal conductivity values lower than still air. This performance is based on the ability of microporous insulation to block the three modes of heat transfer (i.e. conduction, convection, and radiation).
Excelfrax® 200 VIP is a Vacuum Insulation Panel (VIP) designed to provide superior insulation at temperatures between -20°F and +190° F. This advanced thermal insulation provides extremely low thermal conductivity by drastically reducing the heat transfer due to convection and conduction. The graph on page 2 details the thermal conductivity of Excelfrax 200 VIP.
Excelfrax 200 VIP uses a similar mechanism as a thermos bottle to achieve low thermal conductivity. In a thermos bottle, the double cavity walls are completely evacuated, which leaves virtually no gas available for heat transfer due to convection or conduction.
Welded in polyethylene (PE) film under vacuum, the exceptionally low thermal conductivity values of Excelfrax 200 VIP are due to extremely low inner pressure. Its superior insulating value provides equipment designers and users with significant advantages, such as :
Design flexibility by reducing insulation space requirements in appliances
Increased volume in commercial and domestic refrigerators
Reduction in package size and weight of insulated shipping containers
Increased volume for cargo in insulated snipping containers
Allows for longer shipping times/distances for temperature-controlled transportation systems
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