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SoliBlanket™ HA-grade is a unique high‑alumina, melt‑spun refractory ceramic fiber composition. Higher alumina levels are typically difficult to process into fibers, but our advanced spun‑fiber technology makes this possible. Compared to zirconia containing compositions, an alumina–silica system offers superior stability and enhanced resistance to alkali attack.
SoliBlanket™ HA-grade is a 1370°C classification blanket delivering high mechanical strength and improved insulation performance. In high-alkali environments, such as aluminium remelt furnaces, it provides excellent resistance to chemical attack. This results in longer service life and greater reliability under harsh operating conditions. Vulcor continuously listens to market requirements and translates them into innovative solutions.
SoliBlanket HA-grade is an unique product which is only offered by Vulcor Insulation. In normal production operations a spun fiber with such high alumina contents would be hard to manufacture. Typically, these type of high alumina blankets are offered in a ‘blown’-fiber technology which create a high shot, and pretty low quality blanket. Utilizing our unique Ultra Low Shot technology we have been able to offer you this new product in a much improved version to what has been supplied in the market today.
The high classification temperature is the result of the high alumina content of the fiber. The SoliBlanket HA-grade has a classification temperature of 1370°C and is engineered to perform in a wide range of applications up till 1200°C continuously.
The Soliblanket HA-grade is stronger, feels more comfortable to handle and provides better thermal insulation than ‘blown’ fibers in a similar chemical composition. During installation our ULS technology fiber products offer a higher resiliency after compression, which 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 HA-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.
| Properties measured | Standard | Unit | SoliBlanket | HA-grade |
|---|---|---|---|---|
| Grade | RCF | |||
| Colour | white | |||
| Classification temperature | °C | 1370 | ||
| Continous use temperature | °C | 1200 | ||
| Density | kg/m3 | 96 | 128 | |
| Tensile strength | EN 1094-1 | kPa | 65 | 90 |
| Permanent Linear Shrinkage | EN1094-7 | % | ||
| @1200°C | < 2 | |||
| Thermal conductivity | ASTM C-201 | W/mK | ||
| @200°C | 0,07 | 0,06 | ||
| @400°C | 0,11 | 0,09 | ||
| @600°C | 0,15 | 0,13 | ||
| @800°C | 0,22 | 0,19 | ||
| @1000°C | 0,31 | 0,28 | ||
| Chemical composition | ISO12677 | % | ||
| SiO2 | 49 - 52 | |||
| AI2O3 | 48 - 51 | |||
| Fe2O3 | < 0,1 | |||
| Other | < 0,25 |
From our early start, we introduced a tight shrinkwrap packaging solution for SoliBlanket, being among the first to bring this concept to the market. Today, this approach is widely adopted, confirming its clear advantages.
Shrinkwrap packaging for blankets improves on-site efficiency and usability. Its compact form enables easier handling and smoother transport through confined spaces such as furnace manholes. It also reduces fiber dust exposure, offers better short-term weather resistance, and eliminates bulky packaging waste; resulting in faster and cleaner installation.
The concept also delivers significant logistics benefits. By optimizing pallet configuration, 24 rolls can be loaded instead of 20, allowing up to 25% more product per truck or container. This reduces transport costs and lowers the overall carbon footprint per delivered product.
Although plastic packaging has environmental considerations, we have minimized the impact by using film with recycled content. The result is a balanced solution combining operational efficiency with improved sustainability.
SoliBlanket is supplied in this optimized packaging wherever possible. On special request we still supply the carton boxes, and so do we supply our 6 mm rolls.
SoliBlanket is always supplied on ‘one-way’ pallets to optimize the required time for (un-)loading. A 40′ HC container loads a total of 520 rolls (21 pallets of 24 rolls + 1 pallet of 16 rolls) palletized and wrapped for easy and quick unloading.
Please refer to the list below for availability and standard dimensions of the blankets, other sizes are available on request.
| Length (mm) | Width (mm) | Thickness (mm) | 96 kg/m3 | 128 kg/m3 |
|---|---|---|---|---|
| 14640 | 610 | 13 | O | |
| 9760 | 610 | 19 | O | |
| 7320 | 610 | 25 | X | X |
| 4880 | 610 | 38 | O | O |
| 3660 | 610 | 50 | X | X |
| Standard item | X | |||
| On request | O |
2300°F
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2550°F