Blow molding can be found around you and you don’t even know it. The soda that your drinking has a plastic bottle, which was blow-molded. This process can be used to manufacture plastic products. The process involves heating a plastic tube (known as a preform or parison) to its melting point and then putting that into the cavity of a mold.

They then use compressed air to inflate the molten plastic like a balloon so that it takes the shape of the mold but is hollow inside. The amount of plastic used and the air pressure determines how thick the final product is.

You can make just about any hollow plastic container with blow molding, but the process isn’t limited solely to bottles. Here are some commonly blow-molded products:

• Construction Barrels and Barriers
• Stadium Seating
• Coolers
• Fan Housing
• Toys and Sporting Goods
• Watering Cans