■ Anti-freezing solution, also named coolant, can prevent the radiator burst and the engine cylinder block or cover damage due to coolant freezing during vehicle’s parking in cold winter. It mainly designed to protect the normal and good operation of engine and to circulate in the engine water tank, and thus plays a role in the freezing, boiling, rust and corrosion prevention. Generally, anti-freezing solution is in red, green or blue, so as to facilitate the leakage observation or to be distinguished from other engine liquids in case of confusion.
■ The main component of anti-freezing solution on the market is ethylene glycol featured by its high boiling point and low freezing point. Anti-freezing solution is not subject to either season or region. Nevertheless, freezing point and boiling point work as its two primary indicators. Many people may believe that anti-freezing solution only applies to winter season but the fact is that it shall be used throughout the year.
■ Working as a kind of coolant containing special additives, anti-freezing solution presents the anti-freeze performance in winter, the anti-boiling performance in summer, the anti-incrustation performance throughout the year, the corrosion resistance, and other excellent properties.

■ This product adopts the polyester-graded ethylene glycol with a purity of up to 99.9%, whose most significant feature is freezing resistance as compared with water. Moreover, ethylene glycol has a high boiling point, a low volatility, a moderate viscosity, a small temperature-dependent variability, and a good thermal stability.

In addition to anti-freezing property, anti-freezing solution also features the following advantages:

■ Corrosion Resistance: Engine and its cooling system are made of metals, including copper, iron, aluminum, steel and solder. Those metals will be corroded after a long period of contact with water at a high temperature. However, causing no corrosion to engine cooling system, MASUMA anti-freezing solution presents a corrosion resistance feature in stead.

■ Rust Resistance: Corrosion and rust prevention performance is of significant importance because the long-term corrosion to metal parts will result in a large amount of rust and then gradually erode the metal plate and cause leakage in a severe scenario. It has a direct relevance to the service life of vehicle cooling system. Featured by its condensation, overheating, rust and corrosion resistance, MASUMA anti-freezing solution protects all metal surfaces of refrigeration systems, including those aluminum components.

■ Water Incrustation Resistance: More than half of the vehicle cooling systems on the road contain water scale that seriously compromises their cooling system performance. Therefore, owners should first clean up the scale and rust spot in their water tanks before replacing anti-freezing solution. A clean-up tank will bring forth a better cooling performance after the injection of MASUMA anti-freezing solution.

■ Its operating boiling point is as high as 131℃ (At a tank pressure of 15 psi) and thus can effectively prevent liquid evaporation and boiling. Its ultra-low freezing point (-35℃) can provide an extraordinary freezing-resistant protection for water tank.

■ Corrosion prevention through unique technology： The unique ion film passivation technology is adopted to form a dense oxide protection film on the metal surface, so as to effectively prevent electrochemical corrosion from cooling system.

■ Safe and environmentally friendly endurable protection： This anti-freezing solution contains no boron, amine or nitrite components, complies with environmental requirements in a better way, effectively reduces the consumption of anti-corrosion components, and presents an extended service life.

■ A higher purity by multi-layer filtration： This product adopts the dual-stage reverse osmosis filtration and the polyester-graded ethylene glycol with a purity of up to 99.9%, thus effectively preventing water scale from incrustation.

■ Highly efficient heat dissipation through incrustation inhibition and boiling prevention： It not only presents excellent scale removal, incrustation inhibition and silicate stability performance, and prevents flocculation, deposition and pipeline clogging, but also has good anti-bubble and anti-boiling performance, so as to keep the cooling system at a high heat dissipation efficiency.

■ The new coolant should be filled in a cold engine until the highest mark "MAXT" in the fluid reservoir. Then, maintainer tightens the cover, starts the engine, idles it to the normal temperature and shuts it down. When engine temperature drops, maintainer checks if the liquid level in the fluid reservoir remains at the "MAXT" scale. Otherwise, the coolant should be supplemented to its appropriate level accordingly.

Anti-freezing Solution Quality Criteria

■ Anti-freezing solution quality can be measured in two aspects as follows: The first criterion is the anti-freezing effect; the freezing point of water is 0°C; the freezing points of anti-freezing solutions in ordinary type can reach -15°C or -25°C while MASUMA anti-freezing solution can reach -35°C or so. This is a key indicator of anti-freezing solution quality. The second criterion is its boiling point; the boiling point of water is 100°C; the boiling points of anti-freezing solutions in ordinary type are above 108℃ while the operating boiling point of MASUMA anti-freezing solution is up to 131°C; namely, the lower the freezing point is and the higher the boiling point is, the greater the temperature difference will be and the better the anti-freezing solution quality will be.

■ In replacing the anti-freezing solution, maintainer is suggested to operate the pump for a fully empty condition, and then rinse the tank with tap water, circulate the water thoroughly and then empty the tank again.
■ Anti-freezing solution is generally replaced after the vehicle has been driving for 2 years or 40,000 kilometers. It should be noted during the replacement that anti-freezing solution varies upon vehicles, so owners shall choose the right anti-freezing solution according to their own models. Different anti-freezing solutions cannot be used in a mixed way unless there is an extreme circumstance. Otherwise, the mixture is prone to chemical reaction, precipitation or bubble formation, thus substantially compromising the corrosion, incrustation, boiling, freezing and rust prevention performance.