ULTEM™ Resin 2312 PEI Resin
Plastic Granules
ULTEM™ Resin 2312
ULTEM™ Resin 2312 is a 30% milled glass filled, enhanced-flow Polyetherimide (PEI) resin from SABIC. It is designed for high-temperature engineering applications requiring high stiffness, dimensional stability, flame resistance, and electrical insulation performance.
Typical property data
Physical Properties
Specific Gravity: 1.51 (ASTM D792)
Water Absorption, 23°C / 24 hrs: 0.18% (ASTM D570)
Water Absorption, 23°C / Saturated: 0.98% (ASTM D570)
Mold Shrinkage, Flow, 3.2 mm: 0.3–0.4% (SABIC Method)
Mold Shrinkage, Cross-Flow, 3.2 mm: 0.45–0.55% (SABIC Method)
Melt Flow Rate, 337°C / 6.6 kgf: 10.1 g/10 min (ASTM D1238)
Mechanical Properties
- Tensile Stress at Break, Type I, 5 mm/min: 103 MPa (ASTM D638)
- Tensile Strain at Break, Type I, 5 mm/min: 3.5% (ASTM D638)
- Tensile Modulus, 5 mm/min: 5990 MPa (ASTM D638)
- Flexural Stress at Break, 2.6 mm/min, 100 mm span: 179 MPa (ASTM D790)
- Flexural Modulus, 2.6 mm/min, 100 mm span: 6550 MPa (ASTM D790)
- Izod Impact, Notched, 23°C: 32 J/m (ASTM D256)
- Izod Impact, Reverse Notched, 3.2 mm: 309 J/m (ASTM D256)
Thermal Properties
Glass Transition Temperature, Tg: 217°C
Heat Deflection Temperature, 1.82 MPa, 6.4 mm, Unannealed: 207°C (ASTM D648)
Coefficient of Thermal Expansion, -40°C to 150°C, Flow: 2.3E-05 1/°C (ISO 11359-2)
Coefficient of Thermal Expansion, -40°C to 150°C, Cross-Flow: 2.7E-05 1/°C (ISO 11359-2)
Relative Temperature Index, Electrical: 170°C (UL 746B)
Relative Temperature Index, Mechanical with Impact: 170°C (UL 746B)
Relative Temperature Index, Mechanical without Impact: 170°C (UL 746B)
Electrical Properties
Relative Permittivity, 1 kHz: 3.7 (ASTM D150)
Relative Permittivity, 1 MHz: 3.49 (ASTM D150)
Comparative Tracking Index, UL PLC: 4 PLC Code (UL 746A)
Hot-Wire Ignition, HWI PLC 1: ≥3 mm (UL 746A)
Hot-Wire Ignition, HWI PLC 2: ≥0.81 mm (UL 746A)
High Amp Arc Ignition, HAI PLC 3: ≥3 mm (UL 746A)
High Amp Arc Ignition, HAI PLC 4: ≥0.81 mm (UL 746A)
High Voltage Arc Track Rate, PLC: 0 PLC Code (UL 746A)
Arc Resistance, Tungsten PLC: 7 PLC Code (ASTM D495)
Flame Characteristics
Glow Wire Flammability Index, 1.5 mm: 960°C (IEC 60695-2-12)
Glow Wire Ignitability Temperature, 1.5 mm: 875°C (IEC 60695-2-13)
UL Recognized Flame Class Rating: 94V-0 at ≥0.81 mm (UL 94)
5VA Listing: Available
Processing Parameters
- Drying Temperature: 150°C
- Drying Time: 4–6 hrs
- Drying Time, Cumulative: 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 high-temperature electrical, automotive, aerospace, industrial, and precision molded components.