Technical datasheet

ALTUGLAS™ HT 121

Supplied byTrinseo- Last Updated on Feb 11, 2026

ALTUGLAS™ HT 121 by Trinseo is a PMMA resin. It exhibits very high heat and scratch resistance. It can sustain 100°C in a continuous use. It is available in Africa/ Middle East, Asia-Pacific, Europe and Oceania.
  • It can be processed using extrusion and injection molding.
  • Suitable for automotive/ transportation, lightings (electronics/ electricals), household equipment, building & construction and solar panels.
  • Applications for ALTUGLAS™ HT 121 include doors/ windows, facades, furniture, gift & tableware, toys and urban furniture.
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Benefits

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Compliance

Certifications & Compliance
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Availability

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ALTUGLAS™ HT 121 properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Dielectric Constant0.0 Visible After LoginVisible After LoginVisible After Login
Dielectric Strength0.0 Visible After LoginVisible After LoginVisible After Login
Dissipation Factor0.0 Visible After LoginVisible After LoginVisible After Login
Surface Resistivity0.0 Visible After LoginVisible After LoginVisible After Login
Volume Resistivity0.0 Visible After LoginVisible After LoginVisible After Login

Flammability properties

PropertiesValue & unitTest conditionTest method
Flame rating (UL 94)0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Compressive Strength0.0 Visible After LoginVisible After LoginVisible After Login
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Strength, Ultimate0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Rockwell M0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Unnotched Charpy0.0 Visible After LoginVisible After LoginVisible After Login

Optical properties

PropertiesValue & unitTest conditionTest method
Haze0.0 Visible After LoginVisible After LoginVisible After Login
Refractive Index0.0 Visible After LoginVisible After LoginVisible After Login
Transmittance, Visible0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

PropertiesValue & unitTest conditionTest method
Tensile Strength at Yield0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login
Water Absorption0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
CTE, Linear0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT)0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT)0.0 Visible After LoginVisible After LoginVisible After Login
Specific Heat Capacity0.0 Visible After LoginVisible After LoginVisible After Login
Thermal Conductivity0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

ALTUGLAS™ HT 121 Processing Guidelines

Extrusion Processing Guidelines

PropertiesValue & unitTest conditionTest method
Drying TemperatureVisible After LoginVisible After Login
Drying TimeVisible After LoginVisible After Login
Melt TemperatureVisible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login

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