pakkasnesteet

Pakkasnesteet, commonly known as antifreeze, are a type of liquid additive used in cooling systems of internal combustion engines and other machinery to prevent freezing and overheating. The primary function of antifreeze is to lower the freezing point and raise the boiling point of water, thereby expanding the operational temperature range of the cooling fluid.

The most common active ingredient in antifreeze is ethylene glycol or propylene glycol. These glycols are soluble in water and their presence disrupts the formation of ice crystals. When mixed with water, they create a solution with a significantly lower freezing point than pure water, preventing the coolant from turning to ice in cold weather and potentially damaging engine components.

Furthermore, antifreeze increases the boiling point of the coolant. This is crucial in hot weather or under heavy load, as it prevents the coolant from boiling and turning into steam, which would lead to a loss of cooling efficiency and potential overheating.

Beyond their temperature regulation properties, modern antifreeze formulations also contain additives that provide corrosion inhibition. These additives protect the various metal components within the cooling system, such as the radiator, water pump, and engine block, from rust and other forms of degradation. They can also contain anti-foaming agents and lubricants to ensure the smooth operation of the water pump.

Antifreeze is typically mixed with water in a specific ratio, often 50/50, to achieve optimal performance across a wide range of temperatures. The exact concentration depends on the climate and the manufacturer's recommendations for the specific engine or equipment. It is important to use the correct type of antifreeze recommended for the vehicle or machinery, as different formulations may not be compatible or provide the necessary protection.