Superwool Plus engineered for superior chemical resistance and zero crystalline silica formation

Superwool® Plus offers the same benefits as the other membersof the Superwool family but with improved handling strength andenhanced thermal properties. Superwool®Plusis manufacturedfrom pure raw materials using a new manufacturing technology.In addition to enhanced thermal properties, large nuisance dustparticles have been effectively eliminated making the product softto the touch and less irritating during use.

Superwool®PlusBlanket is made of long Superwool fibres having the same chemical formulation as the original and wellproven Superwool 607®product. It is available in a wide range of thicknesses and densities. It exhibits outstanding insulatingproperties at elevated temperatures.

Superwool®PlusBlanket has excellent thermal stability and retains its original soft fibrous structure up to its maximum continuous use temperature. Superwool®Plusis needled fromboth sides and possesses high strength, before and after heating. Superwool®PlusBlanket contains neither binder nor lubricant and does notemit any fumes or smell during the first firing. Superwool®Plusis flexible,easy to cut and shape and easy to install. (CAS number: 329211-92-9).

Classification Temperature

With Superwool® Plus, the consistent use of pure raw materials in all our factories Globally has lead to the 4% shrinkage temperature rising from>1100°C to >1200°C. For this reason, the classification temperature isnow given as 1200°C in line with the EN1094 norm.

Superwool® 607® has been proven over many years to withstand continuous use in an oxidising atmosphere at 1000°C. This temperature is quoted as the Maximum Continuous Use temperature. For applicationsabove 1000°C, Thermal Ceramics recommends Superwool®607HT®whichhas a classification temperature of 1300°C

For further information, contact your local Thermal Ceramics division.

Typical Applications

  • Power generation especially HRSG duct insulation
  • Chimney insulation
  • Process heater linings
  • Pipe wrap
  • Annealing furnace linings
  • Furnace and kiln back-up insulation
  • Storage heater insulation
  • Domestic oven insulation
  • Alutomotive exhaust heat shields
  • Aluminium transfer launder covers
  • Welding stress relief

Main Properties

  • Colour:
  • Specific gravity:
    64, 96, 128, 160 kg/m3
    (4, 6, 8, 10) lbs/ft3
  • ensile strength:
    128 kg/m     375 kPa

High TemperaturePerformance

Permanent linear shrinkage after 24hours isotherm heating at 1200°C <1%

Thermal Conductivity(ASTM C-201)

Following the decision by the European standards committee to withdraw the Thermal Conductivity test according to ENV1094 as being inaccurate, Thermal Ceramics has decided to quote all Thermal Conductivity data according to the well established ASTM C201 method.

Chemical Composition

  • SiO2:
  • CaO:
  • MgO:
  • Other:


  • Exceptional thermal insulating performance, compared with industry standards
  • Free of binder or lubricant
  • Thermal stability
  • Low heat storage
  • Good resistance to tearing
  • Flexible and resilient
  • Immune to thermal shock
  • Good sound absorption
  • Exonerated from any carcinogenicclassification under nota Q of directive 97/69EC

Availability & Packaging

Superwool PlusBlankets are packed in cartons, 1260 x 940mm pallet + stretchable film.

Densities marked •and width of 1220mm are available upon request (subject to minimum order requirements). *Denotes non-standard product - available upon request.