Kilfrost SF50 Inhibitor is a concentrated, water-soluble liquid blend of corrosion inhibitors and pH buffers, specifically designed to provide long-lasting protection in multi-metal closed-circuit water systems while helping to maintain energy efficiency. Its formulation is based on modern Organic Acid Technology (OAT) and is completely free from borates, silicates, phosphates, nitrates, heavy metals and harmful amines.
Unlike conventional products, the proprietary blend of corrosion inhibitors in SF-50 forms a protective monolayer on metal surfaces, preventing corrosion without the use of gelatin silicates, toxic nitrites, or mutagenic borates. SF50 Inhibitor contains no CMR substances (Carcinogenic, Mutagenic, or Reprotoxic), making it a safer and more sustainable choice.
The effectiveness of Kilfrost SF50 Inhibitor has been tested to and exceeds the ASTM D1384 standard, providing reliable corrosion protection for long periods and ensuring the longevity and efficiency of air conditioning, heating and other closed-circuit water systems.

Warning
Causes skin irritation. (H315)
Causes serious eye irritation. (H319)
Always read and follow the information on the product label.
Safety data sheet available for professional user on request.
Contains:
Sodium 4(or 5)-methyl1H-benzotriazolide, Sodium 1Hbenzotriazolide



