TECH Loose Wool HT

TECH Loose Wool HT

TECH Loose Wool HT

Loose stone mineral wool for high-temperature industry applications

TECH Loose Wool HT is the lightly-bonded stone mineral wool roll for insulation of dead spaces, joints, industrial  mattresses fillings or other areas where preformed insulation materials cannot be used.

TECH Loose Wool HT can be flexibly used for service temperatures up to 700°C. The thermal performance will be dependent on the stuffing density and direction of the fibers towards heat source.    

Product Performances & Benefits

  • High service temperatures
  • Fire Reaction
  • Nuclear Plant Quality
  • High Flexibility
  • Improved Logistics


Technical characteristics in compliance with applicable regulations.This section features all the technical characteristics required for references standards: EN 14706, ASTM C411, EN 12667, EN 13787, ISO 10456, EN 13501-1, ASTM E84, AGI Q132, EN 13468, ASTM C795, EN 1609, EN 14303 and ISO 9001.

Thermal conductivities*


50 100 150 200 300 400

λD [W / (m.k)]

0.041 0.046 0.054 0.063 0.073 0.082

* Indicative values for a homogeneous density of around 100 kg/m3. Values may vary according to density and stuffing quality.

Maximum Service Temperature

Tmax = 700 °C under 500 Pa

Specific Thermal capacity

1,03 [kJ/(kg•K)]

Behaviour in fire

  • Non combustible; Euroclass A1
  • Fire Spread Index = 0; Smoke Development Index = 0 

Chemical behaviour

  • AS-Quality
  • Do not contribute to corrosion of stainless steel
  • Produced without addition of silicone
  • No short term water absorption by partial immersion (WS1)


Other information

Quality, Health & Environment

  • CE-marked according to EN 14303
  • ISOVER is certified according to EN ISO 9001 and EN ISO 14001

Delivery Form / Standard Dimensions / Packaging

Please contact your local ISOVER dealer. All dimensions require minimum order quantities.