Alkaline earth silicate fiber mat 1300 ° C


1300 ° C KFT


Alkaline earth silicate fiber


Mat (blanket)
SKU: N/A Category:

Insulation properties

Exceptional insulation properties.


Temperature resistance

High temperature resistance up to 1300 ° C.


Temperature change

High resistance to temperature changes.


Our alkaline earth silicate fiber mat 1300 ° C combines excellent thermal insulation with increased application temperature. The needled alkaline earth silicate fiber mat 1300 ° C is manufactured using our unique know-how in proven technology and offers both a classification temperature of 1300 ° C and an application limit temperature of 1200 ° C. The alkaline earth silicate fiber mat 1300 ° C is made from alkaline earth silicate wool (AES) and can be effective solutions for a variety of applications in a wide range of temperatures. The alkaline earth silicate fiber mat 1300 ° C is completely inorganic, binder-free and therefore retains its strength, flexibility and thermal properties in numerous applications, without any occurrence of smoke or steam.


  • High temperature resistance (up to 1300 ° C)
  • Low thermal conductivity
  • Good thermal shock resistance
  • High tensile strength and elasticity
  • Light weight
  • Excellent flexibility
  • Low heat storage


Mats (blankets) made of high temperature wool are needled lightweight mats made of ceramic (ASW / RCF) or biosoluble (AES) high temperature wool (HTW) and represent an effective solution for a wide range of thermal insulation applications. They are characterized by excellent insulating properties, high resistance to chemicals, elasticity and dimensional stability. They are exclusively inorganic and therefore no smoke or vapors are generated when exposed to heat. They are available in a wide range of densities and thickness combinations, making them one of the most versatile product groups on the market.


Alkaline earth silicate fiber high temperature wool (AES Alkaline Earth Silicate Wool) consist of a mix of amorphous fibers that melt and then rapidly solidify a combination of silicon dioxide SiO2 and calcium oxide (CaO) with or without magnesium oxide (MgO). The fiber can be refined with other additives or a change in the material mix (addition of zirconium oxide (ZrO2) have a temperature resistance of up to 1260 ° C.

Product variations


Roll goods

Fiber mats are sold as roll goods as standard. The roll length depends on the selected thickness. As a standard width, we have 610mm wide rolls from stock. Double widths are available on request.


Molded parts

We manufacture molded parts according to your specifications. The roll goods are made using

  • Water jet
  • Punching
  • Plotting

brought into the right shape for you.


Fiber modules

We manufacture fiberModules which are designed for the insulation requirements of industrial furnaces, kilns and heaters.


Chemical Analysis 
SiO2: 72,0 – 78,0
CaO + MgO: 21,0 – 27,0
Other oxides:  <3.0


Physical Properties
Colour: White
Classification temperature (° C): * 1300
Application limit temperature (° C): 1200
Mean fiber diameter (μm) 3,6


Permanent linear shrinkage (%) after 24 hours
1300 ° C: 3,4
Volume weight (kg / m³) 96 128 160
Thermal conductivity (W / mK)
200 ° C 0,07 0,06 0,06
400 ° C 0,11 0,10 0,09
600 ° C 0,17 0,16 0,15
800 ° C 0,26 0,23 0,21
1000 ° C 0,36 0,31 0,29
1200 ° C 0,56 0,49 0,45
Tensile strength (kPa) 44 58 62

Further products

Gasser - trade in foundry and
Stahlwerksbedarf Gesellschaft mbH