SoliBoard ZR-Grade

SoliBoard™ ZR-Grade

SoliBoard ZR-Grade is our highest rated Refractory Ceramic Fiber (RCF) based board with a classification temperature of 1430°C and providing solutions in applications continuously operating till 1315°C. SoliBoard ZR-grade is manufactured using SoliBulk ZR-grade with selected inorganic and organic fillers to deliver high strength and performance in refractory linings. The SoliBoard ZR-grade secures minimum shrinkage to temperatures close to classification temperature as result from the high Zirconia contents and microstructure.

View US Datasheet    View EN Datasheet    View EN MSDS



Vulcor is proud to introduce you our SoliBoard product range, which is manufactured on our state-of-the-art production line, the result of years of combined production knowledge and engineering excellence. It might sound strange to start a product page with an explanation on the manufacturing process, but as this has been a line of break throughs, it also explains why this product is so much different than the competition offering.

SoliBoard 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.

In the SoliBoard product range, SoliBoard ZR-grade is our highest temperature Refractory Ceramic Fiber (RCF) 1430°C rated board and engineered to perform in a wide range of applications up till 1315°C continuously. The secure chemical composition, the excellence of the SoliBulk ZR as main raw material, and the latest production technologies results to a SoliBoard which 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 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


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






Temperature range

SoliBoard ZR-grade has a classification temperature of 1430°C and advised for maximum continuous use at 1315°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 third 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 ZR-grade is manufactured in a density of 320 kg/m3 and in a standard thickness range from 10 till 50 mm (but optional till 100 mm).

SoliBoard is available in the standard dimensions 1200×1000 mm (or 1000×600 mm) which are supplied on carton boxes of approximately 120mm high (based on the thickness of the board). Please refer to the list below for packaging details of the SoliBoard product range, other sizes are available on request.

In the North American market we are supplying our SoliBoard in a standard dimension of 47 1/4×36 inch and from 3/8 up till 2 inch thick.