MAINTAIN FRICOFIN ESK is a versatile, concentrated engine coolant, suitable for all year round use in the cooling systems of internal combustion engines. It protects engine cooling systems from corrosion all year round and can provide frost protection down to minus 33°C. MAINTAIN FRICOFIN ESK incorporates the latest corrosion inhibitors and is free from nitrites, amines and phosphates (NAP) to give minimum foaming and freedom from hard water scale build-up. MAINTAIN FRICOFIN ESK surpasses the requirements of BS6580; 1992 and ASTM D4985. A 50% concentration is recommended for maximum freezing and corrosion protection.