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SAE Type IV fluids are formulated to prevent ice build-up when applied to clean aircraft during frozen precipitation, such as snow, freezing precipitation, such as freezing drizzle or frost conditions or when these conditions are forecasted. Type IV fluid can also reduce deicing time and reduce the amount of fluid required to remove ice accumulation when used in conjunction with a Type I fluid. When applied after Type I deicing fluid, Type IV fluid will offer greater “holdover” protection times and use less fluid.
SAE AMS 1428 Type IV Aircraft Deicing/Anti-Icing Fluid
Ethylene Glycol-Based Fluid
UCAR™ Endurance EG106
Propylene Glycol-Based Type IV Aircraft Anti-Icing Fluids
UCAR™ FlightGuard AD-49
UCAR™ FlightGuard AD-480