High-Density Polyethylene (HDPE) requires a specific core temperature for optimal thermoforming.
For example, a 0.250-inch HDPE sheet requires a core temperature of approximately 280°F (137.8°C).
It’s important to note that this is the temperature required at the core of the material, not at the material surfaces.
To achieve this core temperature, the temperature differential on both sheet surfaces must be calculated.
Always refer to the specific manufacturer’s guidelines for the most accurate information as the ideal thermoforming temperature can vary based on the specific formulation and thickness of the thermoforming HDPE sheet.