In the classic injection molding process, the plastic (usually in the form of granules) is liquefied (plasticized) and then injected under high pressure into a mold (injection mold).

After a predetermined cooling time, the finished part is removed. Tools can have one or any number of mold nests.

With this process, molded parts can be produced cost-effectively in large quantities.

In multi-component injection molding, also known as 2K (component) or 3K injection molding, components can be made from several different plastics.

This process combines the different materials into a single molded part. Materials that are either transparent or colored or have different degrees of hardness can be combined.