Can Powder Coating Prevent Rust on Metal Bathroom Fixtures?
Can Powder Coating Prevent Rust on Metal Bathroom Fixtures?
When it comes to metal bathroom products—like towel racks, shower caddies, or faucets—powder coating is an excellent solution for rust prevention, provided the process is done correctly.
How Powder Coating Works
Unlike traditional liquid paint, powder coating is applied as a dry powder through an electrostatic process and then cured under heat. This creates a hard, continuous physical barrier that is significantly thicker and more durable than spray paint.
Why It’s Effective for Bathrooms:
Moisture Resistance: The cured finish is non-porous, meaning it seals the metal away from the high humidity and steam typical of bathrooms.
Corrosion Protection: It protects the underlying metal (usually steel, aluminum, or brass) from oxidation.
Durability: It is highly resistant to chipping and scratching. Since rust often starts where paint has flaked off, this durability is key to long-term protection.
The “Catch”: Pre-treatment is Critical
While the coating itself is waterproof, its effectiveness depends entirely on the surface preparation. For maximum rust resistance in “wet zones,” the metal should undergo:
Sandblasting or Chemical Cleaning: To remove all oils and existing oxidation.
Priming: Using a zinc-rich primer before the color coat adds an extra layer of cathodic protection.
