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MAFTEC™ thermal insulation shaped products

Thermal insulation material characterized by high-temperature durability, low heat capacity, and ease of processing that allows cutting with a utility knife

MAFTECTM insulation products are a product lineup made by processing our core product, MAFTECTM Blanket.
Insulation blocks are produced by cutting and laminating MAFTECTM Blanket under compression, and show excellent energy-saving performance through their thermal insulation properties and low heat capacity due to the nature of inorganic fiber insulation products. In addition, MAFTECTM contains extremely little shot (non-fibrous particles) and exhibits high tensile strength under high temperatures. In furnace insulation, the formation of insulator gaps during use is a significant issue because it greatly reduces heat retention and durability. However, blocks made with our materials maintain high-temperature cushioning properties resulting from our proprietary fiber manufacturing method, and a major advantage is that they do not develop gaps (do not fall off) during use.

In addition, new products include skid post blocks and burner tiles, which use MAFTECTM Blanket as the base material and are molded with an inorganic binder.
Both products feature the resistance to cracking and lightweight, low heat capacity characteristics derived from the Blanket, and they are currently used in steel heating furnaces and other applications, with further expansion of use expected in the future.

MAFTEC™ insulation products
*These are products manufactured by customers using our Blanket.

Basic Information

Main Applications

  • Steel heating furnaces
  • Semiconductor heat treatment furnaces
  • Various metal heat treatment furnaces
  • Ceramic firing kilns
  • Hot air generators and ducts

Product features

  • Low thermal shrinkage that prevents gaps during use life
  • Low shot content achieved through a proprietary fiber manufacturing method
  • Durability that maintains performance over long periods
  • High tensile strength in high-temperature environments
  • Low heat capacity that contributes to energy savings

Quality Information

Name MAFTECTM Blanket MLS* MAFTECTM Blanket MLS-2**
6pcf 8pcf
Max. Use Temperature (℃) 1600
Bulk Density (kg/m3) 100 130 150
Chemical composition Al2O3:SiO2 72:28(w/w)
Loss on ignition (%) ≦0.1
True density (g/cm3) 3.1
Average fiber diameter (μm) 5~7
Shot content (%) 0~2
Specific heat (J/kg.K) 1.1×103~1.2×103
Thermal conductivity
(W/m•K)
at 600℃ 0.15 0.14
at 1000℃ 0.29 0.28
at 1200℃ 0.41 0.39
Heating linear shrinkage (%) 1400℃×24h ≦1 ≦1
1600℃×24h 1
* MLS grade: a product with excellent dimensional stability at high temperatures (general-purpose)
**MLS-2* grade: a product that combines flexibility, rebound properties, and cushioning (custom-made: for automotive applications)
Note: The values mentioned above are representative, not guaranteed.

Standard Dimensions

MAFTECTM Blanket MLS grade
Bulk Density (kg/m3) Thickness (mm) Width (mm) Length (m) Quantity (sheets/box)
100(6pcf) 130(8pcf)
6 610 3.6 10
36 1
12.5 610 3.6 6
21.6 1
25 610 3.6 3
10.8 1
25 610 3.6 3
7.2 1
* MAFTECTM Blanket MLS-2* grade is a custom-made product. For details, please contact us through the email form.

Manufacturing Sites

MAFTEC Joetsu Plant

MAFTEC Joetsu Plant

Main Products
MAFTECTM Blanket/Bulk/thermal insulation products, MAFTEC OBMTM

Founded in 1985

1 Fukudamachi, Joetsu-shi, Niigata 942-0032, Japan

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MAFTEC Sakaide Plant

MAFTEC Sakaide Plant

Main Products
MAFTECTM Blanket

Founded in 2006

1 Bannosucho, Sakaide-shi, Kagawa 762-0064

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Download Materials

Download the MAFTECTM product brochure here

Product Information Brochure

Contact Us

For product inquiries and sample requests, please click here

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