SoliPaper™ ULS®-Grade LowPac

SoliPaper ULS®  LOWPAC is our industrial grade low bio persistence fiber paper made from our SoliWool ULS bulk fiber and special selected fillers. Compared to our standard SoliPaper ULS,  the LOWPAC grade is manufactured with a lower density and tighter thickness specification. SoliPaper ULS LOWPAC is only available in Jumborolls which are optimized for conversion by high volume gasket cutting. SoliPaper ULS-grade LOWPAC has a classification temperature of 1200°C and is recommended for use up till 1050°C.


One of the comments when customers start working with our standard SoliPaper ULS-grade is, that it was much stronger and rigid than standard LBP fiber papers. This is the result of our high fiber index, Generation III fiber, and higher density. In some applications this high strength and density was not required which led to the development of the SoliPaper ULS-grade LOWPAC, an industrial grade paper with a lower density and tighter thickness specification. As the SoliPaper ULS-grade LOWPAC (like the normal SoliPaper ULS) is manufactured based on our SoliWool ULS, it also has a classification temperature of 1200°C and is recommended for use till 1050°C continuously.

ULS® stands for Ultra Low Shot technology and SoliPaper ULS is manufactured from true Generation III ultra clean and fine SoliWool fiber. Utilizing an optimized production process to manufacture uniform, lightweight, low shot and flexible paper-like products, we are able to create a product with a smooth surface, close dimension tolerances, exceptionally low dust, high handling strength, better thermal insulating performance and retains its flexibility after compression. SoliPaper ULS-grade LOWPAC is very flexible, but offers a high tensile strength as result of the high fiber index. It is particulary suited to all applications requiring further processing (laminated composites, die-cutting, rolling, folding).

All products in the SoliWool ULS fibers product range, like the SoliPaper ULS LOWPAC, have been tested at the Fraunhofer institute and meet the requirements specified under NOTE Q of European Regulation 1272/2008. All SoliWool ULS fiber products are therefore exonerated from labelling requirements in Europe. Vulcor is REACH compliant and has completed Fraunhofer certification for the SoliBlanket ULS product range.

SoliPaper ULS-grade LOWPAC is part of the SoliPaper product range. With a variety of three Refractory Ceramic Fiber (RCF) grades, a high strength paper, the PCW based paper, and the famous ‘ULS’ Low Bio Persistence Fiber grade we are offering one of the most extensive ranges of high temperature fiber paper products in the market today. With our  different chemical compositions we are able to provide a solution to nearly every atmosphere or temperature.


  • High fiber index
  • Low shot technology
  • Excellent insulation performance
  • High handling strength
  • Close dimensional tolerance
  • Smooth surface and low dust
  • Easy die-cutting for high temperature gaskets
  • Excellent thermal stability
  • Exonerated of carcinogenic classification under Note Q

Typical applications

  • Filler for expansion joints between pre-casted shapes and IFB linings
  • Gasket for domestic appliances
  • Thermal insulation in automotive heat shields
  • Non-ferrous molten metal handling
  • General technical insulation of furnaces and
    technical installations

More information including Data sheets can be found here

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