what is oxidation?

Comparison of siding: left side labeled 'Oxidized Siding' shows faded, light blue siding; right side labeled 'Oxidation Cleaned' shows the same siding cleaned, with a brighter, more vibrant blue.
View of trees and a blue sky through a mesh screen, with a concrete ledge in the foreground. Text overlay reads 'LANA CAGE OXIDATION RUN OFF'.

If you’ve ever seen how a car’s paint starts to look chalky or faded after years in the sun, you’ve seen oxidation at work. The exact process happens to painted and coated surfaces around your home. Oxidation is a chemical reaction caused by UV rays and weather exposure that slowly breaks down the outer layer of paint or coating. It shows up as a dull, powdery, or chalk-like film. Unlike dirt, mildew, or algae, it cannot be washed away with soaps, pressure washing, or soft washing.

Why Regular Cleaning Doesn’t Work

Oxidation bonds directly to the paint or coating. Standard cleaning methods only remove dirt and organic growth, not oxidation. The proper way to address it is with a specialized acidic oxidation cleaner and careful manual brushing. This process can lessen the chalky appearance and improve the overall look, but results depend on the age and severity of the oxidation.

Where It Appears

Homeowners often notice oxidation on lanai cages and pool enclosures, metal roofing, house siding, gutters, and trim. Sun‑exposed areas are usually the most affected.

My Oxidation Cleaning Service

I do offer oxidation cleaning as part of my services. Some cases can be improved, while others may be too advanced and require repainting. I always inspect the surface during your scheduled cleaning to determine what’s possible. Every oxidation cleaning must follow a complete exterior cleaning first, so the surface is completely clear and ready for treatment.

Honest Expectations

Oxidation cleaning can make a visible difference, but it is not a guaranteed fix. Some surfaces respond well, while others may only see partial improvement. If repainting is the only option, I’ll let you know during inspection so you can make the best decision for your home.

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