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Glastherm® HT 250 HQ - ASTM

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Characteristics

  • Low thermal conductivity and extremly high heat resistance
  • Fibre-reinforced composite material developed for applications in field of thermal insulation (max. continuous operating temperature 250°C)
  • Reduces Heat Loss

Technical Specifications Glastherm® HT 250 HQ - ASTM

Test MethodUnitGuideline Value
Standard ColorLight Green
Maximum Service Temp.°C400
Continuous Use Temp.°C250
Test MethodUnitGuideline Value
Flexural StrengthASTM D 790psi87,000
Compressive Strength @RTASTM D 695psi87,000
Compressive Strength @356°F / 180°CASTM D 695psi72,500
Test MethodUnitGuideline Value
Coefficient of Thermal Expansion Across ThicknessASTM D 696(in./in.°C) x 10-511.6
Coefficient of Thermal Expansion Across SurfaceASTM D 696(in./in.°C) x 10-51.3
Thermal ConductivityASTM C 1771.54
Test MethodUnitGuideline Value
DensityASTM D 792lbs/ft3125
Water AbsorptionASTM D 570% by wt.<0.10
Thickness Toleranceinches+/-0.004
Test MethodUnitGuideline Value
Electrical Strength - Perpendicular S/T in AirASTM D 149Vpm300

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