The LEXAN PK2870 datasheet provides FDA‑compliant polycarbonate material properties, processing parameters, and mechanical specifications.
LEXAN PK2870 is a polycarbonate material from GE Plastics that meets FDA specifications with color restrictions, suitable for drinking‑water, extrusion, and blow‑molding applications. The sheet lists melt flow rate, density, water absorption, and optical properties.
Processing guidelines include drying at 240‑250 °F for 46 h (basic) up to 48 h (maximum), screw speeds of 15‑50 rpm, melt temperatures of 610‑650 °F, mold temperatures of 150‑200 °F (injection) or 180‑240 °F (injection), and back‑pressure of 50‑100 psi. Mechanical and thermal performance data such as flexural strength, impact values, and heat deflection temperature are also provided. This manual is written in Chinese.
| Melt Flow Rate (MR) | 2.5 |
|---|---|
| FDA Compliance | Yes (color restrictions apply) |
| Drying Temperature | 240‑250 °F |
| Drying Time (basic) | 46 h |
| Drying Time (maximum) | 48 h |
| Screw Speed | 15‑50 rpm |
| Melt Temperature (injection) | 610‑650 °F |
| Mold Temperature (injection) | 150‑200 °F |
| Back Pressure | 50‑100 psi |
The melt flow rate (MR) is 2.5.
Yes, it complies with FDA specifications, but only with color restrictions.