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„Effective Heat and Temperature Control“ is HOBRA’s comprehensive mark, under which all the company’s products and services in refractory and insulation applications are identified. In essence, it is a marketing project which covers everything HOBRA manufactures, offers and supplies in these spheres.

Civil Engineering Glass and Ceramics Engineering Metallurgy and foundry

FLESIBREX® refractory paper is produced using a paper-processing technology from a water suspension consisting of loose aluminosilicate fibres, organic binder and admixtures. The paper is easily workable and sufficiently strong, and it can be wound onto various pipes and curved surfaces.

It is also used as a thermally-insulating material of low thickness in power engineering, mechanical engineering (production of boilers and furnaces), metallurgical production, foundry and electrical industry at temperatures up to 1,100 °C. It serves as expansion insulation (sealing) of refractory masonry joints and refractory structures of high-temperature sets. Another wide application is for thermal insulation of the lining of furnaces, laboratory furnaces and household appliances, as well as for thermal protection in welding or soldering. It is supplied as cut-outs or as a stock of precise dimensions and shapes according to the customer’s drawing documentation.

The paper can be glued to existing ceramic furnace lining by means of Soudal refractory or stove-making putty. Boards of refractory paper should be stored in a dry space (as humidity affects the binder adversely).

FLESIBREX® paper is used for the following applications:

  • Metallurgy
  • Expansion insulation behind brick (concrete) masonry
  • Insulation of mixers, air ducts, etc.
  • Electrical industry
  • High-temperature sealing
  • Hot-air heating bodies
  • Brick-making
  • Car insulation and sealing
  • Expansion component of furnace insulation
  • Other
  • Aluminum metallurgy
  • High-temperature sealing for all applications
  • Fire and heat radiation protection
  • Metallurgy of ferrous and non-ferrous metals
  • Kitchen (“white”) appliances

More detailed information about our refractory paper, including technical data, can be found in the downloadable documents below.

Documents to download:
Refractory Paper FLESIBREX® (264.1KB, .PDF)

Metallurgy and foundry
Glass and Ceramics
Civil Engineering

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