Blow Molding vs Injection Molding: What’s the Difference?
It is often used interchangeably when discussing molding processes to refer to both blow molding and injection molding. The two processes are alike, but not identical. Both blow molding and injection molding use liquid materials - normally plastics - to fill a mold cavity. By contrast, injection molding creates solid items, whereas blow molding creates hollow ones. In the manufacturing industry, only blow molding is an effective and fast solution for hollow objects.