Introduction to Plastic Drums

Plastic drums are bulk containers manufactured primarily from raw materials such as polyethylene, polypropylene, and polyethylene terephthalate (PET) through blow molding and injection molding processes. They are primarily utilized for the packaging and transport of liquid and solid goods across sectors including chemicals, pharmaceuticals, and food products.

Plastic drum specifications range from 0.25 liters to 220 liters; featuring a seamless design, they are engineered to meet the packaging requirements for hazardous materials. High-density polyethylene (HDPE) drums are generally capable of withstanding temperatures ranging from -40°C to 60°C. These containers are characterized by their lightweight nature, moisture resistance, and corrosion resistance; furthermore, the use of non-toxic HDPE materials ensures compliance with food packaging standards. While suitable for storing chemicals containing acids, alkalis, and oils, they are strictly prohibited from holding highly volatile substances such as fuming sulfuric acid or liquid ammonia. Standard plastic drums should not be used to store flammable liquids such as gasoline; specifically, the use of insulating containers-such as those made of plastic-for storing flammable liquids is strictly prohibited, as is the unauthorized mixing of contents (e.g., using a plastic drum that previously held hydrochloric acid to store hydrogen peroxide). In practical usage scenarios, idle plastic drums require proper handling: after draining any accumulated water, they should be stored upside down or kept sealed with a lid. In June 2025, two national standards were officially released and implemented: GB/T 45451.1-2025, *Packaging Plastic Drums-Part 1: Removable Head (Open-Top) Drums with Nominal Capacities of 113.6 L to 220 L*, and GB/T 45451.2-2025, *Packaging Plastic Drums-Part 2: Non-Removable Head (Closed-Top) Drums with Nominal Capacities of 208.2 L to 220 L*. These standards establish regulatory guidelines for key technical parameters regarding large-capacity plastic drums, including nominal capacity, dimensional tolerances, closure mechanisms, and residual liquid levels. Furthermore, the industry has secured relevant patents in areas such as leak-proof structural designs and pneumatic lid-sealing devices.