Outdoor cushions can accumulate stubborn mastic residue from adhesives or sealants, making them look dirty and unkempt. Fortunately, removing this sticky mess is easier than you might think. Here’s a step-by-step guide to restore your cushions to their original condition.

1. Scrape Off Excess Mastic – Use a plastic scraper or an old credit card to gently lift away as much residue as possible without damaging the fabric.

2. Apply a Solvent – Rubbing alcohol, vinegar, or a specialized adhesive remover can break down the mastic. Test a small area first to ensure no discoloration occurs.

3. Scrub Gently – Dip a soft brush or cloth in the solvent and work it into the residue in circular motions. Avoid harsh scrubbing to prevent fabric damage.

4. Rinse and Dry – Wipe the area with a damp cloth to remove any leftover solvent, then let the cushion air-dry completely before use.

For tougher stains, a mixture of baking soda and water can act as a gentle abrasive. Regular maintenance will keep your outdoor cushions looking fresh and free from stubborn residues.