High temperature insulation bulk wool

DALFRATHERMĀ® RCF high temperature bulk wool is based on our Ultra Low Shot technology, delivering the highest fibre density. These refractory ceramic fibres (RCF) bulk wool products are designed to achieve the highest possible thermal insulation value and yield in secondary processing.

The DALFRATHERMĀ® range of high temperature RCF bulk wool products are available in different types for specific applications; lubricated, non-lubricated and chopped. They are developed to meet the most stringent requirements and reduce heat loss and overall energy consumption.

Further Information


  • Raw material for Vacuum Forming process;
  • Raw material for insulating castables, mastics and coatings;
  • Filling and stuffing of voids and gaps in furnace lining;
  • Injected/blown fibre in double wall chimneys;
  • Long fibres for yarn production (textiles);
  • Furnaces and technical installations


  • Excellent insulation performance;
  • High handling strength;
  • Unaffected by most chemicals;
  • Excellent thermal stability;
  • Resistant to thermal shock

Please note
All physical and mechanical values are averages based on standard production and tested according to internal procedures. The typical values are given for guidance. The figures can change dependent on the test methods used. If a particular value is of prime importance for a specification, please consult Promat Technical Department.