Technical datasheet

Monprene® IN-12990

Supplied byTeknor Apex- Last Updated on Jun 17, 2026

Monprene® IN-12990 by Teknor Apex is a clear/ transparent, light stabilized, sunlight resistant thermoplastic elastomer grade present as pellets. Possesses many useful elastomeric properties of vulcanized rubber and yet can be melt processed. Shows easy processing, faster output, lower cost and recyclability. Exhibits high hardness, low density and low specific gravity. It can be processed using extrusion and injection molding. Monprene® IN-12990 by Teknor Apex suitable for industrial and outdoor applications. Applications also include gaskets, handles, sporting goods and tubing.
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Monprene® IN-12990 properties

Mechanical properties

PropertiesValue & unitTest conditionTest method
300% Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Compression Set0.0 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
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login
Specific Gravity0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

Monprene® IN-12990 Processing Guidelines

Extrusion Processing Guidelines

PropertiesValue & unitTest conditionTest method
Cylinder Zone 1 Temp.Visible After LoginVisible After Login
Cylinder Zone 2 Temp.Visible After LoginVisible After Login
Cylinder Zone 3 Temp.Visible After LoginVisible After Login
Cylinder Zone 5 Temp.Visible After LoginVisible After Login
Die TemperatureVisible After LoginVisible After Login
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Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Back PressureVisible After LoginVisible After Login
Cushion (range)Visible After LoginVisible After Login
Front TemperatureVisible After LoginVisible After Login
Injection PressureVisible After LoginVisible After Login
Melt TemperatureVisible After LoginVisible After Login
Middle TemperatureVisible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login
Molding ShrinkageVisible After LoginVisible After Login
Molding ShrinkageVisible After LoginVisible After Login
Nozzle TemperatureVisible After LoginVisible After Login
Rear TemperatureVisible After LoginVisible After Login
Screw SpeedVisible After LoginVisible After Login