Industrial-Grade High-Efficiency Anti-Corrosion Low-Temperature Coolant LM-4 Series
Product Introduction
LM-4 can replace internationally mainstream food-grade propylene glycol-based heat transfer fluids. Its performance parameters and application scenarios are fully aligned with the PG25 series of propylene glycol-based heat transfer fluids, allowing direct replacement in existing systems without modifying equipment or pipelines. Featuring low toxicity, environmental friendliness and long-term corrosion resistance, LM-4 is widely used in food cold chain, HVAC, process cooling and other fields, providing heat transfer solutions with the same quality as international leading brands but more cost-effective.
Glacier Coolant LM-4 is a high-performance industrial coolant designed for reliable heat transfer in demanding environments. Based on a modified diol solution enhanced with corrosion inhibitors, mold inhibitors, solubilizers, and stabilizers, this product maintains exceptional physical and chemical stability across a wide temperature range, supporting both low-temperature refrigeration and high-temperature process cooling.
Product attributes
Focus on the anti-rust and anti-corrosion solutions of industrial refrigerant for 30 years.
| Product name | Glacier Coolant |
| Product model | LM-4 |
| Appearance and character |
Light liquid |
| pH | 7-11 |
| Boiling point (℃) | ≥150 |
| Flash point (℃) | Not flash at 93℃ |
| Relative density (H2O=1) | 1.105 |
| Melting point / Freezing point (℃) | ＜-50 |
| Solubility | Soluble in water |
| Active ingredient | ≥90% |
| Corrosiveness | According to the《Uniform corrosion test method for metallic materials in laboratory》(JB/T 7901-1999), it has no obvious corrosion to carbon steel, stainless steel and copper. |
| Acute toxicity | According to the《Acute toxicity classification standard 》(GB15193-2003), it belongs to the actual non-toxic level. |
| Physical risk | According to the《Code for classification and labelling of chemicals》(GB 30000.2-30000.17), this product is not physically dangerous.According to the《Code for classification and labelling of chemicals Part 7: flammable liquids》(GB 30000.7-2013), this product does not belong to flammable liquid. |
| Transport risk | According to《The road transport rules for dangerous goods Part 2: Classification》(JT/T 617.2-2018), this product does not belong to dangerous goods. |
| Usage method | When in use, it shall be used alone according to the process requirements, or mixed with water, ethylene glycol and other traditional refrigerant, diluted to an appropriate concentration and then applied. |
| Application fields | LM-4 Glacier Coolant can be used in the cooling system of medicine, chemical industry, food storage, HVAC, blood products, ice and snow sports, beer and beverage, aviation scientific re-search, new energy and other fields. |
LM-4 demonstrates excellent compatibility with various metals, including carbon steel, stainless steel, copper, and aluminum, helping to extend equipment service life. Its high specific heat and strong cooling capacity enable efficient heat exchange even at lower flow rates, improving overall system energy efficiency. Complying with multiple national standards, LM-4 is classified as practically non-toxic and poses no physical hazards such as flammability or explosiveness, ensuring safer handling, storage, and transportation.
Product Advantages
This coolant is widely used in pharmaceutical manufacturing, chemical reaction cooling, food refrigeration, HVAC systems, ice sports venues, beverage production, new energy battery thermal management, and aviation research. Its concentration can be adjusted to optimize freezing points and thermal properties according to operational needs. To ensure long-term performance, regular system checks and sample analysis are recommended.
Product Features
As part of Glacier Coolant’s commitment to advanced thermal management, the LM-4 series embodies three decades of expertise in rust and corrosion prevention, delivering a safer, more efficient, and more reliable cooling solution for modern industry.
Operation Precautions
The following types of gasket materials are recommended for the system (please consult the manufacturer for materials not listed in the table)：
|
PVC |
Fluororubber |
Latex |
HDPE |
Natural rubber |
PP |
silica gel |
PTFE |
|
|
LM-4 |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
Physical Parameters
The following types of gasket materials are recommended for the system (please consult the manufacturer for materials not listed in the table)：
|
The relative density, freezing point and boiling point (reference values) of LM-4 Glacier Coolant with different concentrations |
|||||||||
|
Concentration %（wt） |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
|
Relative density g/cm³ |
1.024 |
1.032 |
1.038 |
1.048 |
1.058 |
1.062 |
1.066 |
1.072 |
1.078 |
|
Freezing point℃ |
-8.0 |
-11.0 |
-15.0 |
-19.0 |
-23.5 |
-28.0 |
-35.2 |
-42.5 |
-48.0 |
|
Boiling point℃ |
102 |
103 |
104 |
105 |
105.5 |
106 |
107 |
108 |
110 |
Fig. 1 The effect of temperature on the viscosity of Glacier Coolant LM-4 with different concentrations
Fig. 2 The effect of temperature on the specific heat of Glacier Coolant LM-4 with different concentrations
Fig. 3 The effect of temperature on the heat conductivity of Glacier Coolant LM-4 with different concentrations
Fig. 4 The effect of temperature on the saturated vapor pressure of Glacier Coolant LM-4 with different concentrations
