To prevent a ceiling light with a iron edge from rusting, here are some tips you can follow:
Keep it clean: Regularly clean the light fixture with a soft cloth and mild soap solution. This will prevent the buildup of dust, dirt, and moisture that can lead to rust.
Apply a protective coating: Apply a protective coating to the iron edge of the fixture. This will create a barrier between the metal and the elements, preventing rust from forming.
Avoid moisture: Avoid installing the fixture in areas with high humidity or moisture, such as a bathroom or near a pool. If this is not possible, make sure to keep the area well-ventilated to prevent moisture buildup.
Use a dehumidifier: If you live in an area with high humidity, consider using a dehumidifier to reduce the moisture level in your home. This can help prevent rust from forming on the light fixture.
Check for leaks: Regularly check the ceiling for any leaks that may be dripping onto the light fixture. Fixing any leaks promptly will help prevent rust and other damage to the fixture.