For more persistent discoloration, try a paste made from baking soda and hydrogen peroxide. Mix baking soda with enough peroxide to form a thick paste, then apply it to stained areas.
Let it sit for about 20 minutes. The peroxide helps lighten stains while the baking soda adds gentle abrasion. Scrub, rinse thoroughly, and inspect the results.
6. Using Magic Erasers Carefully
Magic Erasers can be very effective on plastic and melamine seats. Made of melamine foam, they work like ultra-fine sandpaper to lift stains.
Dampen the eraser and gently scrub the stain without pressing too hard, as excessive pressure can cause surface wear. Wipe clean afterward with a damp cloth.
7. Enzyme Cleaners for Old Urine Stains
Enzyme-based cleaners are designed to break down organic material, making them ideal for urine-related stains and odors. The enzymes digest the proteins responsible for discoloration.
Apply the cleaner as directed and allow it time to work before scrubbing and rinsing. These products are commonly used by professionals and can be especially effective on older stains.