Sabic LEXAN™ PC Resin PK2870
Plastic Granules
SABIC Lexan PK2870 UV-stabilized
LEXAN™ PK2870 resin is a 2.5 MFR branched polycarbonate, MVR of 2. High viscosity. For blow molding, with high melt strength and high impact resistance. Excellent candidate for water bottle applications. Available in transparent colors only.
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Density: 1.2 g/cm³ (ISO 1183)
- Melt Flow Rate (300°C/1.2 kg): 2.5 g/10 min (ASTM D1238)
- Melt Volume Rate (MVR, 300°C/1.2 kg): 2 cm³/10 min (ISO 1133)
Mechanical Properties
- Tensile Stress, Yield: 65 MPa (ISO 527)
- Tensile Stress, Break: 70 MPa (ISO 527)
- Tensile Strain, Yield: 7 % (ISO 527)
- Tensile Strain, Break: >70 % (ISO 527)
- Tensile Modulus: 2350 MPa (ISO 527)
- Flexural Stress, Yield: 95 MPa (ISO 178)
- Flexural Modulus: 2300 MPa (ISO 178)
Impact Properties
- Izod Impact, Notched (23°C): 75 kJ/m² (ISO 180/1A)
- Izod Impact, Notched (-30°C): 55 kJ/m² (ISO 180/1A)
- Charpy Notched Impact, 23°C: 70 kJ/m² (ISO 179/1eA)
- Charpy Notched Impact, -30°C: 50 kJ/m² (ISO 179/1eA)
- Charpy Unnotched Impact, 23°C: NB (ISO 179/1eU)
Thermal Properties
- Vicat Softening Temperature (B/50): 149°C (ISO 306)
- Heat Deflection Temperature (0.45 MPa): 145°C (ISO 75/Bf)
- Heat Deflection Temperature (1.8 MPa): 130°C (ISO 75/Af)
- Thermal Conductivity: 0.2 W/m-°C (ISO 8302)
Optical Properties
- Light Transmission (2.54 mm): 88 % (ASTM D1003)
- Haze (2.54 mm): <0.8 % (ASTM D1003)
- Refractive Index: 1.586 (ISO 489)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 Hours
- Melt Temperature: 320–345°C
- Mold Temperature: 80–115°C
- Maximum Moisture Content: 0.02 %
Superior Impact Resistance
This LEXAN PK2870 resin offers outstanding toughness, significantly reducing breakage and failure in demanding use. It ensures your finished products, like water bottles, withstand drops and impacts, leading to lower return rates and higher customer satisfaction.
High Melt Strength
The high viscosity and melt strength of LEXAN Resin PK2870 provide excellent parison control and sag resistance during extrusion blow molding. This results in more consistent wall thickness, higher production yields, and complex part geometries with greater ease.
Food-Contact Compliant Clarity
With high light transmission (88%) and low haze, this material provides crystal-clear transparency ideal for consumer packaging. Its compliance with food contact regulations in most jurisdictions makes LEXAN PK2870 a trusted and safe choice for beverage containers.