By setting the water temperature generally between 13-17°C, mold temperature can be controlled more precisely, suitable for scenarios where high precision and production efficiency are needed. The temperature of the molten plastic as it leaves the barrel, the temperature of the mold itself, and even the way heat is distributed across the mold all play a role in determining the final quality, dimensional accuracy, and surface finish of your parts. In this guide, we'll explore the key. In the injection molding process, mold temperature is one of the most powerful — and most underrated — process variables you can control. For example, polypropylene often uses 200–250°C, while polycarbonate may require 280–320°C. Temperature affects material viscosity and flow behavior.
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