MEG based with organic corrosion inhibitors (Organic Acid Technology). ![]() In the NSL portfolio: GLACIER ANTIFREEZE and GLACIER COOLANT RTU 40 are traditional antifreezes and coolants. Traditional antifreeze is primarily used for older applications. The majority of the market can be divided in main types of antifreeze: In most cases this provides sufficient frost protection for the majority countries, while still providing excellent heat transfer properties. Therefore, most of the standard ‘ready-to-use’ coolants consist of 50% antifreeze and 50% water. But because of the little amount of water, this mixture has severely less heat transfer capabilities and that could cause overheating of the engine. The optimum mixture ratio is a compromise between frost protection and heat transfer capabilities.Īccording to the chart above, the best possible frost protection will be achieved with a mixture of 70% antifreeze and just 30% water. A common modern antifreeze/water mixture is as follows: The frost protection varies with the percentage of antifreeze in water. It consists 90-95% of Mono Ethylene Glycol (MEG) and 5-10% additives.Ĭoolant is a mixture of antifreeze with demineralized water in 50/50% ratio. The difference between antifreeze and coolantĪntifreeze is an undiluted product to produce coolant. When not lubricated wear is increased and noise and leaks are more likely to occur. Lubricant: added for protection of waterpumps and seals.Air is a good insulator, any air that is not released can decrease the coolants ability to absorb and release heat. Anti-foam additive: prevents air bubbles from forming.Corrosion inhibitor: added protection against corrosion and therefore reducing the formation of blockages in the system and/or damages to waterpumps.Water is corrosive to most metals in the systemįor this above three reasons, additives are used to enhance the properties of plain water into a suitable coolant.However, water has some major disadvantages: The best possible liquid to absorb heat and to keep the engine cool is water. The radiator works as a heat-exchanger and the heat is transferred to the outside air. The heat is absorbed by the coolant and transferred to the radiator. ![]() The primary function of the cooling system is to dissipate excess heat that is produced by the engine during operation. These materials have high temperature differences and different flow-rates within the system. The ‘engine cooling system’ is a complex system consisting of many different materials such as rubber hoses, aluminum or copper radiator and cast-iron or aluminum engine blocks. In this article we highlight in short why it is important to pay attention to this fluid and what the main differences are between the fluids in the North Sea Lubricants portfolio. ![]() With winter approaching in Europe, Antifreeze and Coolants generally get some more -well deserved- attention than usual.
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