Are concrete benches susceptible to efflorescence, and how is it managed?

Concrete benches are indeed susceptible to efflorescence, a common issue where white, powdery salt deposits form on the surface due to water seepage and mineral leaching. This occurs when moisture dissolves salts within the concrete and carries them to the surface, leaving behind unsightly stains after evaporation.

To manage efflorescence, proper sealing is crucial. Applying a high-quality penetrating sealer helps prevent water absorption, reducing the likelihood of salt migration. Regular cleaning with a mild acid solution (like vinegar or commercial efflorescence removers) can dissolve existing deposits. Additionally, ensuring proper drainage around the bench minimizes prolonged water exposure.

For long-term prevention, use low-alkali concrete mixes and cure the bench properly during installation. If efflorescence persists, professional cleaning or resealing may be necessary. With proactive care, concrete benches can remain durable and visually appealing for years.