METALGUARD® H50

METALGUARD H50 Heat Transfer Fluid additive package is formulated for use with both ethylene or propylene glycols. METALGUARD H50 mixes readily with glycols at temperatures as low as 50oF (10°C). METALGUARD H50 may be used to make finished heat transfer fluids for closed-loop systems, water-based HVAC systems, process heating and cooling systems, and more.

The inhibitors in METALGUARD H50 protect all metals found in heat transfer fluid systems. These inhibitors control the corrosion of metals, help prevent scaling and fouling of heat transfer surfaces and buffer the pH to maintain it in the optimum operating range. The inhibitor system is based on a high-phosphate, multi component formulation which makes METALGUARD H50 equivalent in terms of functionality and performance to the very best national brands available. The finished fluid has a recommended operating temperature range of -60oF to +350oF (-50°C to 120°C), and can be used to provide both freeze and burst protection for systems which may be exposed to very low temperatures.

METALGUARD H50 provides outstanding corrosion protection for copper, brass, solder, steel, and cast iron and aluminum. Finished fluids made with METALGUARD H50 meet or exceed industry standards when tested according to ASTM D1384 and D8040 methods. It is compatible with most plastics, elastomers and types of rubber. METALGUARD H50 also contains tolytriazoles to protect copper, brass and solder. A very effective buffering system neutralizes acids formed by the normal thermal and oxidative degradation of glycols, thus maintaining the pH in its optimum range.

Finished fluids containing METALGUARD H50 may be formulated to any concentration. Water used to dilute the fluid can be low-hardness, city water or well water, although the use of deionized water is best. It is recommended that water with no more than 170 ppm hardness be used to dilute the concentrate or be used as make-up water. Higher hardness levels may cause excessive inhibitor consumption, scale deposits, and metal pitting.