SoliBoard™ HS X-Grade

SoliBoard HS X-Grade is the High Strength version of our general purpose 1260°C rated refractory ceramic fiber (RCF) board. SoliBoard HS X-grade is manufactured from a our SoliBulk X-grade with selected inorganic and organic fillers to deliver high strength and performance in refractory linings. Compared to our standard boards the SoliBoard HS X-grade is typically 2x stronger than the standard SoliBoard X-grade. SoliBoard HS X-grade is performing in applications where standard boards do not deliver enough compressive strength, fail on modulus of rupture or are to weak for detailed machining. SoliBoard HS X-grade is extremly suitable for further CNC machining to the finest level of detail. 


SoliBoard HS X-grade is the High Strength version of our standard SoliBoard X-grade. With a typical density of 450 kg/m3, using the benefits of our Generation III, Ultra Low Shot fiber technology and advanced engineering, the SoliBoard HS X-grade is providing a solution in applications where standard boards would not be acceptable from a strength and handling perspective.

SoliBoard HS X-grade is manufactured on our continuous board line which has a total length of approximately 300 meter and a production width of 1200 mm. This line was set up in 2019, and is not only fully PLC controlled, but also equipped with robots to minimize manual labor. Our board line is equipped with the latest drying techniques, and is enabling double side surface treatment. This allows us to not only secure the highest quality, but also allows us to be competitive at high output.

Next to that we utilize a highly efficient drying technique which does not only reduced our energy consumption with 50 % compared to conventional forced air drying, but also allows us to manufacture uniform, lightweight, low shot and stable board up to a thickness of 100 mm at high consistency, quality and performance. In a world where reducing energy consumption and minimizing CO2 emissions is part of sustainable environmental drivers, it is good to realise that we have already taken the first step.

SoliBoard HS X-grade is taking great benefit of the Ultra Low Shot spining technology, which is commonly used for the production of our fiber products. SoliBoard is produced with a very tight thickness tolerance and offer unparalleled flatness.

Vulcor is offering one of the most extensive product ranges in high temperature board products. We offer a complete series of standard boards, a high strength series which is both offering higher green strength as better strengh after first firing, and a special series which are manufactured from mixed fiber chemistries (typically using very high temperature resistant PCW fibers) for the most demanding applications.


  • Low shot technology
  • Excellent insulation performance
  • High handling strength
  • Resistant to erosion from high gas velocities
  • Can be used in direct flame contact
  • Low shrinkage
  • Excellent thermal stability
  • Resistant to thermal shock

Typical applications

  • Thermal insulation for furnace linings
  • High temperature back-up insulation for ladles and torpedo cars
  • Tundish and launder covers in the casting of various alloys
  • Back-up insulation in melting furnaces and
    protection of burners for the glass industry
  • Lining combustion chamber for gas fired boilers and heaters
  • General technical insulation of furnaces and
    technical installations

More information including Data sheets can be found here

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