Ceramic fibre products / Ceramic fibre substitute materials

SILCAPACK and SILCABLOCK are lightweight construction systems of ceramic fibre blanket strips which are laid at right angles to the steel jacket. This produces a brushlike arrangement of the fibres and high resistance to abrasion.

With SILCAPACK it is a matter of strips of ceramic fibre mats, in which the fibres are arranged incoherently. The strips are precut to the insulating layer thickness of the refractory lining. At installation the SILCAPACK strips are pressed together to the desired bulk density and are glued to expanded metal as lamella strips with SILCADUR-B90 adhesive.

SILCABLOCK modules are prefabricated fibre modules which are precompressed to bulk densities of 130 to 180 kg/m³ from fibre strips and are enclosed with tapes or cords or with a gauze material.

Thanks to their flexibility the systems can be matched very simply to every geometrical shape of the steel structure, e.g. pipe elbows, flue gas connections, dished boiler heads etc.

In systems with high flow speeds, e.g. with flue gas lines or burning chambers, the lining surface can be protected against erosive removal of the fibres with SILCADUR coating. In the case of chemical loading, we recommend that you contact our Technical Department.

The fibre module systems SILCAPACK and SILCABLOCK are also manufactured from the different SILCAWOOL fibre qualities which are not classified as hazardous materials by reason of their reduced bio-persistency.


Our EG safety data sheet will inform you on the protective measures to be taken when handling ceramic fibres as well as on the related health risks.

Mounting on sheet metal

For retention and reinforcement of the adhesive, an expanded metal grid is welded to the sheet metal. The installation of the SILCAPACK strips or SILCABLOCK modules is then carried out with SILCADUR B90 adhesive.

Gluing to concrete or masonry

When gluing to concrete or masonry, care must be taken that the substrate is load-bearing. Refractory concrete must be first fired. Gluing to these substrates is carried out with SILCADUR B165S adhesive.

Special features

  • low accumulation of heat
  • high resistance to heat shock
  • very variable in terms of shape
  • rapid and economic installation
  • low thermal shrinkage
  • high resistance to abrasion
  • low bulk density