SoliBlanket ZR-Grade

SoliBlanket ZR-Grade

SoliBlanket™ ZR-Grade

Our standard Refractory Ceramic Fiber blanket range consists of 2 types with a classification temperature of 1260°C and 1430°C. SoliBlanket ZR-grade is our high temperature RCF blanket and has a classification temperature of 1430°C, recommended for use in temperatures up till 1300°C continuously. Together with the SoliBlanket X-grade (which is rated at 1260°C) these two product fill the majority of the applications where Refractory Ceramic Fiber Blankets are still required.

SoliBlanket ZR-grade is setting a new standard for a classic RCF-Zr blankets. Manufactured using the latest spinning technology it is delivering a better performance than any other traditional refractory ceramic fiber blankets. You can feel the difference by just working with the product, but the technology behind is doing much more than that. Better thermal insulation, higher strength and more resiliency when converting to fiber modules.


SoliBlanket ZR-Grade

Datasheets, Media & Downloads


SoliBlanket RCF Datasheet EN


SoliFelt / SoliPaper ZR Grade MSDS


To differentiate our classic RCF-Zr blanket from the competition offering we ensure the high classification temperature by the chemical composition. This means we have a tight control on the zirconia contents of our blankets, and we benefit from the use of our ULS spinning technology.

As a result Soliblanket ZR-grade is stronger, feels more comfortable to handle and provides better thermal insulation. During installation the benefit of our advanced spinning process offers a higher resiliency after compression. This is particularly important when making fiber modules or in case the blanket (strip) is installed perpendicular to the main fiber orientation, or in easier words; stack(bonded).

SoliBlanket ZR-grade is part of the SoliBlanket product range. With a variety of four Refractory Ceramic Fiber (RCF) grades and the famous ‘ULS®’ Low Bio Persistence Fiber grade we are offering one of the most extensive ranges of high temperature fiber blankets in the market today. With our  different chemical compositions we are able to provide a solution to nearly every atmosphere or temperature.


  • Proven technical solution
  • Low shot technology
  • Excellent insulation performance
  • High handling strength
  • Unaffected by most chemicals
  • Excellent thermal stability
  • Resistant to thermal shock

Typical applications

  • Thermal insulation for lining stacks and chimneys
  • Blanket for module making
  • Furnace lining in Ceramics and Glass
  • Thermal insulation for Petrochemical Industry
  • Refractory lining for Steel Treatment
  • General technical insulation of furnaces and technical installations.


Blanket from high temperature Refractory Ceramic Fiber insulation wool.

Temperature range

SoliBlanket ZR-grade has a classification temperature of 1430°C.

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

Product range

SoliBlanket 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.


All SoliBlanket products from the Standard Grade RCF range are available in densities from 64 to 160 kg/m3 and in a standard thickness range from 6 till 50 mm.

SoliBlanket is standard supplied in shrink wrap plastic film, and can be supplied in carton boxes (except 6 mm blanket which is only available with 4 rolls per carton box). The blankets in shrink wrap are placed on a heat treated export pallet with 24 rolls per pallet. Please refer to list below for availability of densities and dimensions.

Length (mm) Width (mm) Thickness (mm) 64 kg/m3 96 kg/m3 128 kg/m3 160 kg/m3
5500 610 6 X
14640 610 13 O X X X
9760 610 19 O O O O
7320 610 25 X X X X
4880 610 38 X X X
3660 610 50 X X X
Standard item X
On request O


Properties measured Standard Unit SoliBlanket ZR-grade
Grade RCF
Colour white
Classification temperature °C 1430
Continous use temperature °C 1300
Density kg/m3 96 128
Tensile strength EN 1094-1 kPa 65 90
Permanent linear shrinkage EN 1094-1 %
@1300°C < 2
@1400°C < 3
Thermal conductivity ASTM C-201 W/mK
@200°C 0,05 0,05
@4000°C 0,09 0,08
@600°C 0,13 0,12
@800°C 0,20 0,18
@1000°C 0,28 0,25
@1200°C 0,32
Chemical composition ISO 12677 %
SiO2 48 - 51
AI2O3 34 - 37
ZrO2 14 - 17
Fe2O3 < 0,2
Other < 0,25