Which coating uses finely ground pigment or resin particles that are electrostatically charged and sprayed onto a surface to resist wear?

Which coating uses finely ground pigment or resin particles that are electrostatically charged and sprayed onto a surface to resist wear?

• A. Powder coating
• B. Painting
• C. Plastic coating
• D. Surface finishing

Answer: (A)

Powder coating relies on finely ground pigment or resin particles that are electrostatically charged and sprayed onto a surface. The electrical charge makes the particles cling to the grounded surface, giving an even, uniform coating without solvents. After application, the part is heated so the powder melts, flows, and cures into a hard film that resists wear and holds up under use. This differs from liquid painting, which uses solvent-based coatings applied by brush or spray and can run or require thinner layers. The term plastic coating is broad and doesn’t specify the electrostatic spraying or curing process, and surface finishing is a general umbrella term for various final surface treatments rather than a specific coating method.

Powder coating relies on finely ground pigment or resin particles that are electrostatically charged and sprayed onto a surface. The electrical charge makes the particles cling to the grounded surface, giving an even, uniform coating without solvents. After application, the part is heated so the powder melts, flows, and cures into a hard film that resists wear and holds up under use.

This differs from liquid painting, which uses solvent-based coatings applied by brush or spray and can run or require thinner layers. The term plastic coating is broad and doesn’t specify the electrostatic spraying or curing process, and surface finishing is a general umbrella term for various final surface treatments rather than a specific coating method.