Molding techniques are methods used to shape materials into specific forms. Commonly used in industries like manufacturing and art, these techniques involve pouring a liquid material, such as plastic or metal, into a mold that has the desired shape. Once the material cools or hardens, it takes on the mold's form, allowing for the creation of complex designs and structures. There are various molding techniques, including injection molding, where molten material is injected into a mold under pressure, and blow molding, which is used to create hollow objects like bottles. Each technique has its advantages, making them suitable for different applications and products.