A thorough cleaning at the beginning of the outdoor season will often last throughout the summer.

Always give the chairs a good cleaning before storing them away for the winter.

Move the chairs or other plastic furniture that needs cleaning to the tarp.

White plastic chairs sprayed with all-purpose cleaner and wiped with sponge

The Spruce / Sanja Kostic

Mix a Cleaning Solution

There are several cleaning solutions that work well for white plastic chairs.

Choose one for your cleaning session.

Apply to the mildewed areas and wait about 10 minutes before doing general cleaning.

Materials and tools to clean white plastic chairs

The Spruce / Sanja Kostic

When the chairs are free from dirt and debris, rinse well with a garden hose.

If they are still dingy, move to the next step.

Tip

Do not use any jot down of abrasive cleaner when cleaning white or colored plastic chairs.

White plastic chair with orange garden hose placed on tarp for cleaning area

The Spruce / Sanja Kostic

Gritty cleaners or harsh scrubbing pads will scratch the plastic and allow grime to settle in the groves.

Oxygen bleach is a slow-acting, gentle bleaching agent that removes stains and brightens plastics.

The oxygen bleach and water solution will not harm grass or plants while you clean.

Cleaning solution sprayed on to white plastic chair and wiped with cloth

The Spruce / Sanja Kostic

Stir well to mix and dissolve the powder.

Start at the top and use some elbow grease to help lift embedded soil.

Allow the solution to remain on the chairs for at least 15 minutes to help whiten the plastics.

White plastic chair scrubbed with soft-bristled nylon brush

The Spruce / Sanja Kostic

Leaving it longer will not harm the chairs.

Tips to Keep White Plastic Chairs Clean Longer

Scoop of oxygen-based bleach over bucket of water

The Spruce / Sanja Kostic

Oxygen bleach solution scrubbed on to white plastic chair with sponge

The Spruce / Sanja Kostic

White plastic chair sprayed with water from garden hose

The Spruce / Sanja Kostic