METALGUARD® H60

Food Grade/USP, Propylene Glycol-Based Heat Transfer Fluid Inhibitor Package

25+ years in coolant additives|Decades of chemical expertise| Global manufacturing and distribution

METALGUARD H60 is an NSF registered food grade heat transfer fluid additive package that is mixed with a USP grade propylene glycol base. It is used where it may come into incidental or accidental contact with food, beverage products or drinking water may occur. For example it could be used in HVAC systems, fire systems, solar heating, refrigeration warehouse floor heating, sidewalk/playing field subsurface heating/cooling, cold room dehumidification systems, cosmetic or pharmaceutical use and it also makes an excellent additive package to make RV storage antifreeze.

METALGUARD H60 contains food grade dipotassium phosphate as its primary inhibitor. All ingredients are classified as GRAS, or generally recognized as safe, by the FDA and acceptable as food additives (FoodAdditives Regulations, Subparts 182 and 184). The regulation for dipotassium phosphate is CFR 182.6285. It also meets Food Chemicals Codex (Fourth Edition).See the bottom of the next page for the regulation.

The METALGUARD H60 inhibitor package contains ingredients that help prevent corrosion of metals, minimizes scaling and fouling of heat transfer surfaces, and buffers the pH to maintain it in the optimum operating range. The inhibitor system is based on a balanced high phosphate formulation and is compatible with all common metals in heat transfer fluid systems and is compatible with most plastic construction materials.

The recommended operating temperature range of METALGUARD H60 is -45oF (-50°C) to +250oF (120°C). The lowest temperature to which the finished product can be exposed depends upon the amount of water with which the concentrated product is mixed (see table on page 2). METALGUARD H60 can be used to provide both freezing protection and burst protection for systems which may be exposed to very low temperatures. Propylene glycol containing METALGUARD H60 may be formulated to any concentration, with deionized water (see next page). METALGUARD