Metal furniture can be finished or treated with various processes, and one common method is zinc coating, often referred to as galvanization. However, the exact finishing or coating process can depend on the intended use and desired properties of the furniture. Here's a breakdown of common metal finishes:
1. Zinc Coating (Galvanization):
● Hot-dip galvanizing: The metal is submerged in molten zinc, which forms a protective layer on the surface. This is a very durable finish and is typically used for outdoor furniture or items exposed to moisture and harsh environments.
● Electrogalvanizing: Zinc is applied through an electroplating process, which creates a thinner coating compared to hot-dip galvanizing. This method can be used for indoor metal furniture, providing some corrosion resistance.
2. Powder Coating:
● A popular finish for metal furniture, powder coating involves applying a dry powder to the metal and then curing it with heat. It provides a smooth, durable, and scratch-resistant surface that can come in various colors.
3. Chrome Plating:
● Often used for a shiny, reflective finish, chrome plating provides a sleek, durable surface that resists rust and corrosion. This is commonly used for modern, industrial-style furniture.
4. Anodizing (for Aluminum Furniture):
● For aluminum furniture, anodizing involves an electrochemical process that thickens the oxide layer on the metal, providing improved corrosion resistance and surface hardness.
5. Painting:
● Metal furniture can also be painted with protective coatings that offer aesthetic appeal and protect the metal from corrosion, though these coatings may not be as durable as zinc or powder coating.
In summary, while zinc treatment (galvanization) is a common method for making metal furniture corrosion-resistant, not all metal furniture is finished or iodized with zinc. The type of finish used depends on factors like the environment in which the furniture will be used (indoor vs outdoor), desired appearance, and durability requirements.
