Antifreeze, also known as antifreeze coolant, is a coolant with antifreeze properties. It prevents the coolant from freezing in cold winters, which could crack the pipes between the laser and the chiller, and damage the pipe seals. Currently, there are various types and formulations of antifreeze on the market, so many customers are unsure how to choose or mix it, or have already chosen antifreeze unsuitable for their chillers. In fact, our chillers have specific requirements for antifreeze; choosing the wrong one or using it improperly can damage the internal piping of the equipment.
I. Chiller Antifreeze Reference Proportion for Mixing
| Ratios | Local minimum temperature |
6:4 (60% antifreeze + 40% water) | -42℃~-45℃ |
5:5 (50% antifreeze + 50% water) | -32℃~-35℃ |
4:6 (40% antifreeze + 60% water) | -22℃~-25℃ |
3:7 (30% antifreeze + 70% water) | -12℃~-15℃ |
2:8 (20% antifreeze + 80% water) | -2℃~-5℃ |
| Note: The mixing ratio must be based on the local lowest temperature. | |
Products Description
How to use Chiller antifreeze to ensure the machine operates without any abnormalities?
- Step [01] First, shut down the entire machine and drain all the water from the chiller.
- Step [02] First, add 20-30% pure water to the chiller, then add antifreeze, and finally fill the chiller with water.
- Step [03] Turn on the chiller and circulate for 10-15 minutes, then start the machine.
The chiller requires the following 5 antifreeze properties
- Stable chemical properties
- Good antifreeze performance
- Low viscosity at low temperatures
- Corrosion and rust prevention
- No swelling or corrosion of rubber-sealed conduits
Comparison of the advantages and disadvantages of common antifreeze on the market
| Name | Corrosiveness | Toxicity | Viscosity | Volatility | Recommended? |
Sodium chloride | Strong | Non-toxic | Lower | Weak | Not Recommended |
Methanol | Relatively strong | Highly toxic | Lower | Strong | Not Recommended |
Ethanol | Relatively strong | Slightly toxic | Lower | Strong | Recommended |
Ethylene glycol | Relatively strong | Low toxicity | General | Not strong | Recommended |
Propylene glycol | Relatively strong | Slightly toxic | General | Not strong | Recommended |
Glycerol | Relatively strong | Low toxicity | Large | Not strong | Not Recommended |
