In industrial boilers, air preheaters, and economizer tubes, acid condensation can occur when flue gas temperatures fall below the acid dew point, especially during low-load operation or startup/shutdown cycles. This condensation, combined with moisture and chloride salts (NaCl), can generate aggressive acids such as HCl and H₂SO₄. These acidic conditions accelerate metal degradation, corrosion under insulation (CUI), and reduce heat transfer efficiency, ultimately leading to higher maintenance costs and unplanned downtime.

emisspro® AC-SERIES is a high-hardness, anti-acid, and anti-alkali protective coating engineered to withstand these extreme environments. It provides excellent resistance against aggressive chemicals including salt,  hydrochloric acid, and sulfuric acid, making it particularly suitable for air preheater and economizer tube applications.

Formulated with advanced inorganic polymer chelation technology (Si-O-Si bonding), the coating forms a dense, stable protective layer that delivers

1. Strong Adhesion to metal substrates
2. Long-term durability in chemically aggressive settings
3. High-temperature resistance up to 250 ˚C