Antifreeze
Floixem® N
Monoethylene glycol base antifreeze
Concentrated , to dilute before use
Biodegradable.
Description and applications
Concentrated monoethylene glycol based antifreeze, must be diluted before use, for applications where there is no possibility of contact with food material.
Biodegradable.
100% organic formulation (OAT) to guarantee the best protection for all types of metals and is compatible with plastics and elastomers normally present in circuits. Aluminium and its alloys are protected from corrosion.
Additives that are not consumed in action, no need to replenish with supplementary packs and no need to check residuals periodically.
Free of hazardous additives such as nitrites, amines, nitrates, borates, benzoates, 2EH.
| Appearance | Transparent Liquid |
| Colour | Fluorescent yellow |
| pH 35% in water at 20ºC | 8.0-9.0 |
Results according with standard ASTM D1384.
| Metal | Floixem® N 33%. | Limit |
| Copper | 1.9 | 10 |
| Soft Solder | 0.3 | 30 |
| Brass | 0.1 | 10 |
| Carbon Steel | 0.2 | 10 |
| Cast Iron | -0.7 | 10 |
| Aluminium | 6.3 | 30 |
Results in mg per core after 336 hours at 88°C with forced aeration and corrosive water. Negative results indicate a weight gain of the core due to the formation of a stable protective layer.
 |
 |
 |
|---|---|---|
| 5 Kg. | 4 | 128 |
| 10 Kg. | – | 60 |
| 20 Kg. | – | 36 |
| 230 Kg. | – | 2 |
| 1100 Kg | – | 1 |
.Floixem® N is available in concentrated form, to dilute with water according to the desired protection temperature
| % Volume Floixem® N | Freezing Temperature (°C) | Protection Temperature (°C) | Burst Temperature (°C) |
|---|---|---|---|
| 20% | -9 | -11 | -13 |
| 25% | -12 | -15 | -17 |
| 30% | -16 | -19 | -22 |
| 35% | -20 | -24 | -27 |
| 40% | -25 | -29 | -32 |
| 45% | -31 | -33 | -37 |
| 50% | -38 | -41 | -45 |
| 55% | -45 | -49 | -53 |
The freezing temperature is the temperature at which the first ice crystal appears and coincides with those displayed by a refractometer. The breaking temperature is the temperature at which the entire product is frozen and there is an increase in volume and pressure that endangers the integrity of the system. Between the two temperatures above, there is a mixture of ice crystals and unfrozen glycol that flows without increasing in volume; the mid-point between the freezing and breaking temperatures is called the protection temperature.
A minimal proportion of 20% is required to ensure the additives are in an adequate proportion for protecting the system. Dilutions above 55% are not recommended.
In new installations it is recommended to rinse with water to remove particles, grease and flux residues (especially if they contain borax, chlorides or fluorides).
It is recommended to purge the circuit avoiding air pockets.
Teflon tape or hemp is recommended for sealing the
threaded joints. Check the compatibility of other products with mono ethylene glycol before use.
Monoethylene glycol and its dilutions are not compatible with zinc as it dissolves it. If galvanized pipe is present in the system, a whitish solid will appear at the beginning of the operation. Once removed, the resulting carbon steel will be protected by Floixem® N and no further precautions are necessary.
The mixing water must be drinking water with a maximum salt content of 100 ppm chloride.
The maximum recommended temperature for closed circuits is 180ºC.
Prolonged periods at temperatures above 180ºC may reduce the useful life of the product due to degradation of the monoethylene glycol.
In open circuits or where there is oxygen intake (valves, automatic fillings, etc.) the maximum temperature is lower. In case of doubt, consult the technical department
Precautions
Harmful if swallowed.
Store in original containers tightly closed and out of direct sunlight.
No transportation or storage restrictions.
Handle in accordance with good chemical practice. In case of doubt, consult the safety data sheet
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