Outdoor sofa cushions can develop a slimy film due to moisture, mildew, and dirt buildup. To keep them fresh and clean, follow these practical tips:

1. Regular Cleaning: Wash cushions with mild soap and water every few weeks. Use a soft brush to scrub away dirt and rinse thoroughly. Allow them to dry completely before use.

2. Proper Storage: Store cushions in a dry, ventilated area when not in use. Consider using waterproof storage bags or bins to protect them from rain and humidity.

3. Use Protective Covers: Invest in weather-resistant cushion covers to shield them from moisture and UV rays. Remove and wash covers regularly.

4. Mildew Prevention: Spray cushions with a vinegar-water solution (1:1 ratio) or a commercial mildew-resistant spray to inhibit slime formation.

5. Elevate Cushions: Place cushions on raised surfaces or furniture with good airflow to prevent moisture buildup underneath.

By following these steps, you can extend the life of your outdoor cushions and keep them free from slimy film.