20-400 Black Semi Ribbed Skirt PP Cap

Our 20-400 Black Semi Ribbed Skirt Polypropylene (PP) Cap features a PP(Polypropylene) Polycone liner. These ribbed Polypropylene (PP) plastic caps have high tensile strength and are made to be durable. Polypropylene (PP) Caps are mainly used in environments that use corrosive chemicals and liquids. This makes it an ideal closure to handle against aggressive products that contain hot temperatures and acids. Our Polypropylene (PP) Cap comes with a natural-colored PP (Polycone liner). This Polycone liner is cone-shaped and placed inside the cap. Once on the container, this liner acts as a wedge that seals the top of the cap with the neck diameter. This creates a tight seal on the bottle to trap out oxygen and prevent leakage. In addition, Polypropylene has great heat resistance with an extremely high melting point of (320 degrees Fahrenheit or 160 degrees Celsius) This item has a 20-400 neck finish. The first number refers to the diameter (in mm), and the second refers to the closure depth, style, and thread. This top is a good fit for any of our great "Matching Products" below.