What are the best methods for preventing efflorescence on concrete outdoor chairs?
Efflorescence, the white powdery residue that forms on concrete surfaces, can be a common issue for outdoor chairs. To prevent it, start by using high-quality, low-alkali concrete mixes during manufacturing. Apply a penetrating concrete sealant to block moisture absorption, which is the primary cause of efflorescence. Regularly clean your chairs with a mild acid solution (like vinegar and water) to dissolve existing deposits. Ensure proper drainage around the furniture to avoid water pooling. For long-term protection, reapply sealant every 1-2 years and keep the chairs covered during wet weather. These steps will help maintain the appearance and durability of your concrete outdoor furniture.