What are the granules in the injection moulding process typically made of?

In the injection moulding process, the granules are typically made of plastic because this method is specifically designed for thermoplastic materials. Thermoplastics are polymers that become pliable upon heating and solidify upon cooling, making them ideal for creating complex shapes through injection moulding.

The process involves melting the plastic granules, then injecting the molten material into a mould. Once it cools, it solidifies into the desired component. The use of plastic granules allows for a wide range of material properties and makes the process efficient for mass production of plastic parts in industries such as automotive and consumer products. This versatility in material selection is crucial as it enables the production of lightweight, durable, and often cost-effective components.