If your outdoor bench cushions have developed mildew, don’t worry—it’s a common issue, especially in humid or shady areas. As a manufacturer of outdoor benches, we recommend a gentle yet effective cleaning process that preserves the fabric and foam beneath.

Step 1: Remove and brush off loose debris. Take the cushions off the bench and use a soft-bristled brush to remove any dirt, leaves, or spores. Do this outdoors to avoid spreading mildew indoors.

Step 2: Prepare a mild cleaning solution. Mix one cup of white vinegar with one gallon of warm water. Vinegar is a natural antifungal that kills mildew without harsh chemicals. For tougher stains, add a tablespoon of baking soda to the mixture.

Step 3: Scrub gently with a sponge or soft brush. Dip the brush into the solution and work it into the mildewed areas with circular motions. Avoid aggressive scrubbing that might damage the fabric’s water-resistant layer.

Step 4: Rinse thoroughly with clean water. Use a garden hose with a spray nozzle to rinse away all soap residues. Leftover vinegar or baking soda can attract dirt if not fully removed.

Step 5: Dry completely in direct sunlight. Sunlight is a natural disinfectant that kills remaining mildew spores. Place the cushions upright or on a clean, dry surface. Ensure no moisture remains in the seams or foam, as trapped moisture leads to new mildew growth.

Prevention tip: After cleaning, apply a fabric protector spray designed for outdoor use. This creates a barrier against moisture and mold. Also, store cushions in a dry, ventilated area when not in use for extended periods.

By following these steps, you’ll restore your bench cushions to a clean, fresh state and extend their lifespan. If the mildew persists or the fabric appears damaged, consult your bench factory for replacement parts or specialized cleaning products.