How to prevent efflorescence on concrete outdoor ottoman surfaces?

Efflorescence, the white powdery residue that forms on concrete surfaces, can mar the appearance of your outdoor ottoman. To prevent this issue, start by using high-quality, low-alkali concrete mixes for construction. Apply a penetrating sealer designed for concrete outdoor furniture to block moisture absorption, which is the primary cause of efflorescence. Regularly clean the ottoman with a mild detergent and soft brush to remove dirt and salts before they accumulate. Ensure proper drainage around the furniture to prevent water pooling. If efflorescence appears, scrub it with a vinegar-water solution (1:3 ratio) or a commercial efflorescence remover, then reseal the surface. For long-term protection, reapply sealant every 1-2 years depending on climate conditions. These steps will maintain your ottoman's aesthetic appeal while extending its lifespan.