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What is SiC?

The BM catalysts premium range of DPFs is made using silicon carbide as opposed to cordierite which is used in the standard range of DPFs. It is a compound of Silicon and Carbide. Also known as Carborundum, it is a material widely used in applications that require high thermal or strength endurance. It is mass produced as a powder which can be bonded together using heat to form a ceramic.

SiC has a wide variety of uses within several industries thanks to its low production cost and high heat and strength endurance. From sealants, car brakes, plates and clutches to furnaces, abrasive machinery, engineering and structural supports in nuclear power stations.

Properties of SiC

  • High thermal conductivity
  • Low thermal expansion
  • Thermal shock resistant
  • Semiconductor
  • Extremely Hard
  • Corrosive resistant
  • Does not melt at any known pressure
  • One of the strongest known materials – Second to Diamond.

Why we use SiC in our Premium Range

It has a melting point of 2700°C so is extremely unlikely to melt during regeneration. It has to be made from small segments fixed together with special cement to enable it to cope with heat expansion. It also boasts 99% filtration efficiency and are commonly used in O.E and catalysing DPFs.


Our range of SiC DPFs is offered with a 3 year warranty against manufacturing defects. Over 50% of our standard range of DPFs is available in the premium range, which is denoted by the “P” suffix. The range covers a magnitude of vehicles including:

  • Alfa Romeo
  • Chrysler
  • Citröen
  • Fiat
  • Ford
  • Hyundai
  • Mazda
  • Mercedes
  • Mini
  • Mitsubishi
  • Nissan
  • Peugeot
  • Renault
  • Saab
  • Seat
  • Suzuki
  • Vauxhall
  • Vaulkswagen
  • Volvo