Toxic substances list: refractory ceramic fibres

Refractory ceramic fibres (RCFs) are amorphous man-made fibres produced from the melting of calcined kaolin clay or a combination of alumina and silica. RCFs are principally industrial products, used as insulating, reinforcing, and fire protection material for furnaces, heaters, kiln linings, furnace doors, metal launders, tank car insulation, and related products designed to be used at high temperature. Major RCF consuming industries include the steel, petrochemical, ceramic, automotive, and primary metal industries.

Risk assessment


This substance is entering the environment from the following source(s):

Strategic options report

Click on the following link to view strategies and actions recommended to manage risks associated with the substance:

  • Strategic Options for the Management of Toxic Substances


Consultation (past and present) on the substance:

  • Refractory Ceramic Fibre Industry - (Completed) (November 09, 2005 to December 08, 2005)


Products Division
Environment and Climate Change Canada
Gatineau, QC K1A 0H3

Telephone: 819-938-4483 or 1-888-391-3426


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