What is the difference between cast aluminum waterproof tanks and plastic waterproof tanks?

There are differences between cast aluminum waterproof boxes and plastic waterproof boxes in multiple aspects, including materials, performance, cost, and application. Here are some of their main differences:
1. Materials
Cast aluminum waterproof box: Made of aluminum alloy casting, with metallic properties.
Plastic waterproof box: usually made of plastic materials such as polypropylene, polycarbonate, or ABS.
2. Strength and durability
Cast aluminum waterproof box: It has high strength and impact resistance, good durability, and can withstand large mechanical and environmental pressures.
Plastic waterproof box: The strength and impact resistance are relatively low. Although the performance of modern engineering plastics has greatly improved, they are generally not as durable as cast aluminum boxes.
3. Corrosion resistance
Cast aluminum waterproof box: Aluminum has natural anti-corrosion properties, but in some extreme environments, additional anti-corrosion coatings may still be required.
Plastic waterproof box: It has good resistance to most chemicals and corrosive environments, especially suitable for humid or chemically corrosive environments.
4. Weight
Cast aluminum waterproof box: Heavy, increasing the difficulty of installation and handling.
Plastic waterproof box: Lightweight, easy to install and transport, especially suitable for portable applications.
5. Cost
Cast aluminum waterproof box: The manufacturing cost is high, especially for casting and processing complex shapes.
Plastic waterproof box: Generally speaking, the material and manufacturing costs are low, the production efficiency is high, and it is suitable for large-scale production.
6. Appearance and Design
Cast aluminum waterproof box: It can have high aesthetics and texture, and is suitable for use in situations where aesthetics and high-end feel need to be displayed.
Plastic waterproof box: It has more flexibility in appearance design and can easily achieve various colors and shapes, but its texture may not be as good as cast aluminum boxes.
7. Application scenarios
Cast aluminum waterproof box: commonly used in application scenarios that require high strength and durability, such as outdoor equipment, industrial control boxes, etc.
Plastic waterproof box: commonly used in application scenarios that require anti-corrosion, lightweight, or low cost, such as electronic device casings, portable devices, etc.
Overall, the choice of waterproof box depends on specific application requirements and environmental conditions.