Barnacle Buster Concentrate QtA safe, non toxic, and biodegradable marine growth remover. Specifically formulated to meet an industry wide need for a fast, safe, and cost effective alternative to mechanical cleaning of water cooled equipment. Can safely be recirculated through sea water cooling systems, dissolving barnacles, zebra mussels, calcium, rust, lime and all other mineral deposits. Most applications can be completed within 4 hours! Concentrate: Dilution ratio is 4: 1