ULTEM™ Resin 2312EPR
Plastic Granules
ULTEM™ Resin 2312EPR High-flow PEI 30% Milled Glass Filled
ULTEM™ Resin 2312EPR is a 30% milled glass-filled high-flow PEI resin. It offers high stiffness, heat resistance, low shrinkage, UL94 V-0 flame rating, internal mold release, and enhanced electroplatability for precision molded parts.
Typical property data
Physical Properties
- Density: 1.48 g/cm³ (ISO 1183)
- Specific Gravity: 1.48 (ASTM D792)
- Mold Shrinkage on Tensile Bar, Flow: 0.4–0.6% (SABIC Method)
- Mold Shrinkage, Flow, 3.2 mm: 0.4–0.6% (SABIC Method)
- Mold Shrinkage, Cross Flow, 3.2 mm: 0.4–0.6% (SABIC Method)
- Melt Flow Rate, 337°C/6.6 kgf: 13.7 g/10 min (ASTM D1238)
- Melt Volume Rate, 360°C/5.0 kg: 14 cm³/10 min (ISO 1133)
- Water Absorption, 23°C/Saturated: 0.9% (ISO 62-1)
- Moisture Absorption, 23°C/50% RH: 0.5% (ISO 62)
Mechanical Properties
- Tensile Stress at Yield, Type I, 5 mm/min: 94 MPa (ASTM D638)
- Tensile Stress at Break, Type I, 5 mm/min: 94 MPa (ASTM D638)
- Tensile Strain at Yield, Type I, 5 mm/min: 2% (ASTM D638)
- Tensile Strain at Break, Type I, 5 mm/min: 2% (ASTM D638)
- Tensile Modulus, 5 mm/min: 6480 MPa (ASTM D638)
- Flexural Stress at Yield, 1.3 mm/min, 50 mm Span: 156 MPa (ASTM D790)
- Flexural Modulus, 1.3 mm/min, 50 mm Span: 5580 MPa (ASTM D790)
- Tensile Stress at Yield, 5 mm/min: 80 MPa (ISO 527)
- Tensile Stress at Break, 5 mm/min: 80 MPa (ISO 527)
- Tensile Strain at Yield, 5 mm/min: 2% (ISO 527)
- Tensile Strain at Break, 5 mm/min: 2% (ISO 527)
- Tensile Modulus, 1 mm/min: 5300 MPa (ISO 527)
- Flexural Stress at Yield, 2 mm/min: 145 MPa (ISO 178)
- Flexural Modulus, 2 mm/min: 5500 MPa (ISO 178)
Impact Properties
- Izod Impact, Unnotched, 23°C: 330 J/m (ASTM D4812)
- Izod Impact, Notched, 23°C: 39 J/m (ASTM D256)
- Instrumented Dart Impact Total Energy, 23°C: 15 J (ASTM D3763)
- Izod Impact, Unnotched, 80 × 10 × 4 mm, +23°C: 25 kJ/m² (ISO 180/1U)
- Izod Impact, Unnotched, 80 × 10 × 4 mm, -30°C: 25 kJ/m² (ISO 180/1U)
- Izod Impact, Notched, 80 × 10 × 4 mm, +23°C: 5 kJ/m² (ISO 180/1A)
- Izod Impact, Notched, 80 × 10 × 4 mm, -30°C: 5 kJ/m² (ISO 180/1A)
- Charpy Impact, V-Notched Edgewise, 23°C: 5 kJ/m² (ISO 179/1eA)
- Charpy Impact, V-Notched Edgewise, -30°C: 4 kJ/m² (ISO 179/1eA)
- Charpy Impact, Unnotched Edgewise, 23°C: 25 kJ/m² (ISO 179/1eU)
- Charpy Impact, Unnotched Edgewise, -30°C: 25 kJ/m² (ISO 179/1eU)
Thermal Properties
- Glass Transition Temperature, Tg: 217°C
- Vicat Softening Temperature, Rate B/50: 216°C (ASTM D1525)
- Vicat Softening Temperature, Rate B/50: 211°C (ISO 306)
- Vicat Softening Temperature, Rate B/120: 213°C (ISO 306)
- HDT, 0.45 MPa, 3.2 mm, Unannealed: 204°C (ASTM D648)
- HDT, 1.82 MPa, 3.2 mm, Unannealed: 199°C (ASTM D648)
- HDT, 0.45 MPa, 6.4 mm, Unannealed: 206°C (ASTM D648)
- HDT, 1.82 MPa, 6.4 mm, Unannealed: 202°C (ASTM D648)
- HDT/Bf, 0.45 MPa, Flatwise, 80 × 10 × 4 mm: 204°C (ISO 75/Bf)
- HDT/Af, 1.8 MPa, Flatwise, 80 × 10 × 4 mm: 192°C (ISO 75/Af)
- CTE, -40°C to 150°C, Flow: 3.2E-05 1/°C (ASTM E831)
- CTE, -40°C to 150°C, Cross Flow: 3.5E-05 1/°C (ASTM E831)
- CTE, -40°C to 150°C, Flow: 3.7E-05 1/°C (ISO 11359-2)
- CTE, -40°C to 150°C, Cross Flow: 3.9E-05 1/°C (ISO 11359-2)
- Thermal Conductivity: 0.32 W/m·°C (ISO 8302)
- Ball Pressure Test, 125°C ± 2°C: Passes (IEC 60695-10-2)
- Relative Temperature Index, Electrical: 105°C (UL 746B)
- Relative Temperature Index, Mechanical with Impact: 105°C (UL 746B)
- Relative Temperature Index, Mechanical without Impact: 105°C (UL 746B)
Electrical Properties
- Comparative Tracking Index, UL PLC: PLC 4 (UL 746A)
- High Voltage Arc Track Rate, PLC: PLC 4 (UL 746A)
- Arc Resistance, Tungsten, PLC: PLC 5 (ASTM D495)
- Hot-Wire Ignition, HWI PLC 1: ≥3 mm (UL 746A)
- Hot-Wire Ignition, HWI PLC 2: ≥1.5 mm (UL 746A)
- Hot-Wire Ignition, HWI PLC 3: ≥0.75 mm (UL 746A)
- Hot-Wire Ignition, HWI PLC 4: ≥0.4 mm (UL 746A)
- High Amp Arc Ignition, HAI PLC 4: ≥0.4 mm (UL 746A)
Flame Characteristics
- UL Recognized Flame Class Rating: UL94 V-0 at ≥0.4 mm (UL 94)
- Ball Pressure Test: Passes at 125°C ± 2°C (IEC 60695-10-2)
Processing Parameters
- Drying Temperature: 150°C
- Drying Time: 4–6 hrs
- Cumulative Drying Time: 24 hrs
- Maximum Moisture Content: 0.02%
- Melt Temperature: 350–400°C
- Nozzle Temperature: 345–400°C
- Front Zone 3 Temperature: 345–400°C
- Middle Zone 2 Temperature: 340–400°C
- Rear Zone 1 Temperature: 330–400°C
- Mold Temperature: 135–165°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Shot to Cylinder Size: 40–60%
- Vent Depth: 0.025–0.076 mm
Use & Applications
- for precision molded parts.