SoliBoard HT-Grade

SoliBoard HT-Grade

SoliBoard™ HT-Grade

Our standard Refractory Ceramic Fiber based SoliBoard™ product range consists of 3 types, with a classification temperatures of 1260°C till 1430°C. Manufactured using our Ultra Low Shot technology these boards are delivering a better performance compared to traditional refractory ceramic fiber based boards. SoliBoard™ can be used for a wide range of application in refractory linings or in domestic appliances.

SoliBoard HT-grade stands out with its unique composition. By using our 1300°C rated SoliBulk HP-grade fibers, we have increased the classification temperature of SoliBoard HT-grade to 1400°C without the need for zirconia. SoliBoard HT-grade is manufactured with selected inorganic and organic fillers to deliver high strength and performance in refractory linings and secures minimum shrinkage to temperatures close to classification temperature.

SoliBoard HT-Grade

Datasheets, Media & Downloads


SoliBoard RCF STD Datasheet EN


SoliBoard X Grade MSDS


Introducing Vulcor’s SoliBoard range, manufactured on our state-of-the-art production line, a result of years of expertise and engineering excellence. Our manufacturing process sets us apart from the competition, and here’s why:

SoliBoard is produced on our continuous board line, measuring approximately 400 meter in length and a fixed production width of 1200 mm. This cutting-edge line, established in 2019, incorporates the latest standards and utilizes low-energy consumption drying technology, a unique advantage in our industry. This enables us to deliver exceptional quality while maintaining high output capabilities.

Our highly efficient drying technology reduces energy consumption by 50% compared to conventional forced air drying methods. It empowers us to manufacture uniform, lightweight, low shot, and stable boards up to 100 mm in thickness, consistently meeting the highest standards of 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 HT-grade stands out with its unique composition. By using our 1300°C rated SoliBulk HP-grade fibers, we have increased the classification temperature of SoliBoard HT-grade to 1400°C without the need for zirconia. In result, SoliBoard HT-grade is an unique and economical attractive alternative to the SoliBoard ZR-grade and other types of RCF-Zr based boards.

SoliBoard is produced with a very tight thickness tolerance and offer unparalleled flatness. As a result the SoliBoard, compared to other types of board, offers better machining characteristics in CNC cutting. With SoliBoard you can easily tailor the board into a precision machined shapes for domestic boilers and heater.

Vulcor provides an extensive range of high-temperature board products, including:

  • Standard boards
  • Inorganic binder boards which give lower LOI% and off-gassing
  • High-strength series with superior green strength and post-firing strength
  • Special series made from mixed fiber chemistries, often utilizing highly temperature-resistant PCW fibers, for the most demanding applications.

All standard board formulations include a small amount of organic binder to enhance cold handling strength, which burns out during the initial firing at approximately 250°C.


  • 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
  • Insulation in tunnel kiln and holding furnaces for the ceramic industry
  • Lining combustion chamber for gas fired boilers and heaters
  • General technical insulation of furnaces and technical installations


Boards from high temperature Refractory Ceramic Fiber (RCF) insulation wool and selected fillers.

Temperature range

SoliBoard HT-grade has a classification temperature of 1400°C and advised for maximum continuous use at 1260°C.

The maximum continuous use temperature provided on the website is a guideline and only applicable in a clean oxidizing atmosphere.

Product range

SoliBoard is part of an extensive product range supplied by Vulcor Insulation. Vulcor Insulation is supplying insulation solutions from cryogenic to high temperature applications. All products offered by Vulcor are manufactured in house or sourced from exclusive trusted 3rd party partners.

Technical support

Vulcor Insulation provides specifiers and customers with guidance on all aspects of the materials selection for their application, the installation and compliance with relevant regulations and performance standards.

For additional information about product performance or to identify the recommended product for your application, please contact the team at Vulcor Insulation.



SoliBoard HT-grade is manufactured in a density of 280 to 320 kg/m3 and in a standard thickness range from 6 till 100 mm.

SoliBoard is available in standard dimensions of 1200x1000 mm and 1000x600 mm, supplied in carton boxes with a height of approximately 120 mm (based on thickness) or in project pack without carton boxes. Please refer to the provided list for packaging details of SoliBoard in the standard carton boxes.

Thickness Per carton box (1000x600 mm) Boards per pallet (1000x600 mm) Per carton box (1200x1000 mm) Boards per pallet (1200x1000 mm)
6 20 560 20 280
10 12 336 12 168
13 10 280 10 140
15 8 224 8 112
20 6 168 6 84
25 5 140 5 70
40 3 84 3 42
50 2 72 2 36
60 2 56 2 28
75 1 46 1 23
100 1 36 1 18


Properties measured Standard Unit SoliBoard HT-grade
Grade RCF
Colour off-white
Classification temperature °C 1400
Continuous use temperature °C 1250
Density kg/m3 280 - 320
Modules of Ruprutre EN 993-6
Unfired kPa ≥ 750
Compressive strength (unfired) EN ISO-8895
@ 5% deformation kPa ≥ 140
@10 % deformation kPa ≥ 180
Loss on ignition wgt% < 8
Permanent linear shrinkage EN 1094-7 %
@1300°C < 3
Thermal conductivity ASTM C201 W/mK
@200°C 0,06
@400°C 0,08
@600°C 0,12
@800°C 0,15
@1000°C 0,21