Nutec™ Supermag HI Blanket

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Nutec™ Supermag is a high temperature low bio-persistence fiber that utilizes a unique spinning technology to create a special fiber with superior thermal and mechanical properties. This fibre is made from a blend of calcium, silica and magnesium and can be exposed to temperatures up to 2018 oF (1103 oC), which makes it ideal for a wide variety of applications such as refractory linings, thermal insulation, and fire protection. Supermag boasts low thermal conductivity and heat storage, high tensile strength and excellent corrosion resistance.


·        Low Thermal Conductivity

·        Low Heat Storage

·        High Tensile Strength

·        Thermal Shock Resistance

·        Lightweight

·        Excellent Corrosion Resistance


Typical Applications

·        Back-Up Insulation
·        Co-Generation Ducts
·        Aluminum Homogenizing Furnaces

·        Annealing Furnaces
·        Insulation Pads
·        Crude Heaters

·        Stress Relieving
·        Heat Treating Furnaces
·        Expansion Joints



Typical Physical Properties

 Density lb/ft3

 4, 6, 8, 10
(64, 96, 128, 160)

 Max. Short Term Exposure oF (oC)

 Up to 2018 (1103)

 Continuous Use Limit oF (oC)

2012 (1100) 

 Melting Point, oF (oC)

 2320 (1270)

 Typical Chemical Analysis, %









 Linear Shrinkage

 24 Hr at 2012 oF (1100 oC)



Technical Data Sheet

Nutec - Supermag HI Blanket.pdf