Polyethylene sheets are classified as semi-finished and prefabricated materials used to create more complex parts and structures. Notably, some types of polyethylene sheets can be welded using special welding machines, enhancing their versatility and functionality. Typically produced in thicknesses ranging from 3mm to 30mm, polyethylene sheets are utilized in manufacturing polyethylene tanks, coatings, industrial parts, and various other structures. They offer several advantages, including excellent chemical resistance, high abrasion and corrosion resistance, and good durability. Additionally, they resist solvents, petroleum products, acids, and bases effectively, making them an excellent solution for combating chemical and physical corrosion, as well as for use in water storage tanks.
Types of Polyethylene Sheets
The production process of polyethylene sheets yields various grades, each categorized accordingly:
- LDPE (Low-Density Polyethylene): Thickness 86 microns
- MDPE (Medium-Density Polyethylene): Thickness 125 microns
- HDPE (High-Density Polyethylene): Thickness 250 microns
Applications of Polyethylene Sheets
Polyethylene sheets can be directly used in manufacturing parts or for coating other components. Their primary limitation is at high temperatures; they soften above 90°C and may swell or allow solvent penetration when exposed to certain chemicals like xylene at 85°C. However, they perform well at temperatures below 60°C and down to as low as -50°C, maintaining excellent chemical resistance. The low weight and density of polyethylene are additional benefits, reducing the weight of structures by up to 70% compared to metal. This makes polyethylene sheets a suitable alternative to steel in chemical industries, especially in corrosive and saline environments.
Polyethylene sheets are also used to manufacture water storage tanks. Approved by all health organizations, polyethylene is safe for storing drinking water and foodstuffs, ensuring no changes in taste or color while maintaining water quality and safety. These tanks meet the strictest global standards for potable water tank and sanitary storage.
Features of Polyethylene Sheets
- Impact Resistance at Low Temperatures: Due to their good elasticity, polyethylene sheets resist impacts even at low temperatures.
- Excellent Chemical Resistance: They withstand a wide range of acids and bases, making them ideal for surface coatings.
- Flexibility: Polyethylene sheets under 10mm thickness have good formability when heated.
- Insulation: They are non-conductive and provide excellent electrical insulation.
- Material Quality: ABtank uses top-grade materials, resulting in bright-colored sheets suitable for decorative interior applications.
- Moderate Hardness: The hardness of polyethylene sheets is balanced, making them suitable for cutting and machining. They are ideal for part fabrication and modeling.
- Waterproof: Polyethylene sheets are impermeable to water but allow the passage of oxygen and carbon dioxide.
- Color Variety: Available in transparent and various colors, with black sheets providing good UV protection.