According to the survey, more than 50% of global automotive engine cooling systems from failure! This shows the importance of reasonable matching antifreeze. Sold on the market most of antifreeze is ethylene glycol as the main raw material of the product, then add the right amount of organic or inorganic salts to achieve the role of corrosion and rust. 



 To measure the merits of antifreeze are the following two points: first frost effect, freezing point of water is 0 ℃, ordinary type of antifreeze can reach -40 ℃, and high-quality antifreeze should be able to reach about -60 ℃, This is a calibration is an important indicator of quality antifreeze; the other is the boiling point of antifreeze and water boiling point is 100 ℃, and the antifreeze be at least above 108 ℃, which means that the lower the freezing point, boiling point higher, in which the temperature larger, relatively speaking, the better the quality antifreeze. 



 Of course, these two indicators to measure only one aspect of antifreeze, corrosion and rust performance is extremely important, because for a long time generated by the corrosion of metal parts a lot of rust, a serious will gradually wear caused by metal corrosion leakage, This is directly related to the life of automotive cooling systems, most common antifreeze is basically by adding organic or inorganic salt to solve this problem, and high-quality anti-freeze has a chemical reaction with low-power-point technology for production, with stable Asia silicate (phosphate-free), and adopted strict hot surface aluminum corrosion ASTMD 4340 test, it can control the amount of hard water deposits, and to the cooling system provides excellent corrosion protection, it is different from the existing sold on the market type of conventional glycol-based antifreeze. Can be said to have been completely out of the traditional production process of antifreeze, the antifreeze is a new technology and the latest 6580 to reach U.S. standards. Its advantages are: anti-condensation, overheating, rust and corrosion protection for all cooling system metal surfaces, including aluminum parts. Will not damage the radiator hoses, gaskets and other rubber components, but also can prevent too much foam, to prevent the water hardness caused by calcium and magnesium precipitation, thus avoiding congestion at the end and part of the formation of hot spots. Heavy-duty diesel engines and can be used to purchase additional cooling without additives (SCA), with all grades of ethylene glycol antifreeze and auxiliary additives compatible, can also be used for all non-aluminum or aluminum water-cooled parts of the various types of passenger cars, small cars and heavy vehicle's cooling system. 



 Another point is that anti-fouling resistance. According to the survey, 70% of the vehicle cooling system gave birth to scale and rust, seriously affect the function of the cooling system heat up! Most owners believe that antifreeze should be used in the winter, other seasons you can use tap water, in fact, this is a misunderstanding. We all know that hard water contains large amounts of alkaline material, after separation by heating into a scale, attached to a metal surface inside the radiator, if not its regular cleaning, a thick scale will severely affect the cooling system function, leading to boil, water, or even stick cylinder, bush-burning. Therefore, we should replace the antifreeze in the tank before the first point in the scale and rust to clean up. Tank cleaning agent to select one of the double-effect cleaning rust cleaning agents better, now has two products on the market, one of the early products, in addition to remove scale than any other function, while the other is more advanced in high-end products, of course, referred to here is not the price of high-grade, and now there are many very good new products is very reasonable in price, is the high cost of multi-function products, in addition to scale with the clean-up, rust functions, but also lubricate and protect the cooling system because antifreeze circulating in the cooling system in the process, these lubrication protection agents will be attached to the metal surface, forming a protective membrane, the water and the outside material is completely isolated to prevent cooling Health scale and the internal structure of the system again within the cooling system corrosion of metal parts. Cleaning up after a good tank, then add antifreeze effect is better. Under normal circumstances antifreeze should be changed every two years, two years after the antifreeze because the indicators have reached less than the original care requirements, so should be replaced, in order to save a little money do not be busy work, or Tam missed the changeover time, allowing you more harm than good. 



 Finally, we also need to remind you about, a world authoritative body of the certification testing is also very important. Currently, more authoritative testing standards are: lightweight aluminum cylinder automobile engine testing standards ASTM D3306 and heavy-duty cast iron wet type cylinder automotive engine test standard ASTM D4985. Previously, respectively, these two standards compatibility of different types of antifreeze is not strong, the composition of the silicate material easily gumming, clogging the cooling system, reducing the circulation of liquid transfer efficiency; In addition, since phosphate is easy formation in hard water scale and rust, so a new generation of products has gradually been replaced. Currently on the market the latest high-quality antifreeze should meet the ASTM D3306 and D4985 are two standards, and comply with American Society of Testing and Materials hot surface aluminum corrosion test standard D4340, SAE J1034 and J1941 standards of automotive manufacturers and national recognition