WATERBURY, Conn. - A solar heat-transfer fluid with improved stability at high temperatures is now available in North America. Hubbard-Hall Inc. has partnered with German-based Clariant Corp. to offer Antifrogen® SOL HT in ready-to-use concentrations, packaged in 5 gallon pails and 55 gallon drums. Previously only available in Europe, the product is said to offer excellent thermal stability while providing the corrosion inhibition required to maintain system performance.

According to the company, Antifrogen SOL HT was developed as an alternative to traditional heat-transfer fluids that experience thermal decomposition at temperatures above 170°C (338°F). Typical glycol based heat transfer fluids on the market today tend to evaporate at high temperatures, which may leave insoluble residues, leading to operating problems or failure of the system, said Hubbard-Hall. Antifrogen SOL HT is designed to withstand short-term stagnation temperatures of greater than 260°C (500°F) without breaking down and forming salt-like scale. In addition, phase separation of Antifrogen SOL HT and water does not occur. The product also provides corrosion inhibition in combined-metal environments.

Antifrogen is a non-hazardous, higher glycol based product with a price comparable to other brand name glycols, said the company. As a premixed, ready-to-use product, Antifrogen SOL HT provides frost resistance in cold climates while maintaining a consistent concentration.

For more information, visit www.hubbardhall.com.

Publication date: 09/13/2010