Polypropylene plastic is a cost-feasible and versatile polyolefin first polymerized in 1954. At the time, it meteorically rose in popularity because of one feature – a density lower than all other industrial plastics. Today, polypropylene accounts for over 16% of the world’s plastic production, which is among the highest for anyone plastic. This is not surprising, since polypropylene finds applications in numerous industries – from automotive to textiles, from packaging to medical supplies. This article looks at various aspects of the wondrous plastic that is polypropylene. So, let us dive into polypropylene, its properties, its contribution to the world, and its potential in 3D printing applications.