What are two common reasons plastic components are used for industrial work?

• A. Lightweight, Flexible
• B. Resist corrosion, Cheap
• C. High strength, Durable
• D. Transparent, Heat resistant

Answer: (B)

Plastics are often chosen for industrial components mainly because they resist corrosion and are inexpensive to produce. In many industrial settings, parts are exposed to moisture, chemicals, or other corrosive environments. Metals can rust or corrode over time, leading to leaks, failures, and higher maintenance costs. Plastics, by contrast, don’t oxidize in the same way and many plastics are inherently resistant to a wide range of chemicals, so components last longer and require less protective coating or treatment.

Cost is the other big factor. Plastics can be molded into complex shapes with relatively low tooling costs and high-volume production, which lowers the per-part cost. Their light weight also reduces shipping, handling, and energy needed during use, contributing to overall savings over the part’s life.

Other properties like lightweight, high strength, or heat resistance can be important for specific applications, but corrosion resistance and cost are the two most broadly impactful reasons plastics are used in industry.