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Stocked Insulation & Safety Items > Insulation Material > Firwin Plus  
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Firwin Plus


Image Firwin Plus uses a patented technology that manufactures high temperature insulation wool with low bio-persistence.

Firwin Plus is an Alkaline Earth Silicate (CAS number: 329211-92-9) offering the same benefits as our standard FWN 1800 but with improved handling strength and enhanced thermal properties.

Firwin Plus
  • Manufactured from pure raw materials using a new manufacturing technology
  • Enhanced thermal properties; large nuisance dust particles have been effectively eliminated making the product soft to the touch and less irritating during use
  • Made of long AES fibers
  • Same chemical formulation as Firwin 1800
  • Outstanding insulating properties at elevated temperatures
  • Offers excellent thermal stability
  • Retains its original soft fibrous structure up to its maximum continuous use temperature
  • Needled from both sides and possesses high strength, before and after heating
  • Contains neither binder nor lubricant and does not emit any fumes or smell during the first firing
  • Flexible, easy to cut and shape and easy to install
  • Low heat storage
  • Good resistance to tearing
  • Immune to thermal shock
  • Good sound absorption
  • Exonerated from any carcinogenic classification under note Q of directive 97/69EC 6




Physical Properties  · Specifications  · Thermal Conductivity (ASTM C-201)

Physical Properties

Colors
White

Thickness
1/4 – 2 in.
6.25 – 50 mm

Density
4, 6, 8, 10 lbs/ft³
64, 96, 128, 160 kg/m³

Linear Shrinkage
@1000ºF [538ºC] 2
@1800ºF [982ºC] 3
@ 2282ºF [1250ºC] -

Tensile strength
128 kg/m³
75 kPa


Specifications

Classification Temperature
  • Rated Temperature 1200ºC / 2192ºF EN 1094 [Continuous use]
  • Proven to withstand Continuous use in an oxidizing atmosphere at 1000ºC.

High Temperature Performance
Permanent linear shrinkage after 24 hours isotherm heating at 1200ºC <1%

Chemical Composition
CaO: 26-32%
MgO: 3-7%
Other: <1%
SiO2: 62-68%


Thermal Conductivity (ASTM C-201)
Mean Temperature W/m.K (BTU in/hr/ft² /ºF)
64kg/m³
4lbs/ft²		 96kg/m³
6lbs/ft²		 128kg/m³
8lbs/ft²		 160kg/m³
10lbs/ft²
200ºC 392ºF 0.06 (0.42) 0.05 (0.35) 0.05 (0.33) 0.05 (0.32)
400ºC 752ºF 0.26 (1.8) 0.09 (0.62) 0.08 (0.55) 0.08 (0.54)
600ºC 1112ºF 0.1 (0.69) 0.14 (0.97) 0.12 (0.83) 0.11 (0.79)
800ºC 1472ºF 0.17 (1.18) 0.21 (1.46) 0.18 (1.25) 0.16 (1.11)
1000ºC 1832ºF 0.38 (2.63) 0.29 (2.01) 0.25 (1.73) 0.22(1.49)





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