To effectively clean mildew off plastic urban outdoor furniture, start by creating a simple yet powerful cleaning solution. Mix equal parts white vinegar and water in a spray bottle, as vinegar's acidity naturally kills mildew spores. For stubborn mildew growth, add a tablespoon of baking soda to enhance the cleaning power.
Apply the solution generously to the affected plastic surfaces, ensuring complete coverage of all mildewed areas. Let it sit for 10-15 minutes to penetrate and break down the mildew. Use a soft-bristled brush or non-abrasive scrub pad to gently scrub the surface, working in circular motions to lift the mildew without scratching the plastic.
After scrubbing, rinse thoroughly with a garden hose or bucket of clean water. For persistent mildew stains, create a paste using baking soda and water, apply it directly to the stains, and let it sit for 30 minutes before scrubbing and rinsing.
To prevent future mildew growth, ensure furniture dries completely after rain or cleaning. Consider using furniture covers during wet seasons and apply UV-protectant sprays designed for outdoor plastic furniture. Regular maintenance cleaning with mild soap and water can also help prevent mildew buildup.
Always test any cleaning solution on a small, inconspicuous area first to ensure it doesn't damage or discolor your specific plastic furniture. With these methods, your urban outdoor plastic furniture will remain mildew-free and looking fresh throughout the seasons.