Glacier Coolant LM-4D-YE Modified Diol Low-Conductivity Coolant -35°C To 150°C

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✦ Glacier Coolant LM-4D-YE is a modified diol-based industrial coolant with low conductivity, designed for indirect cooling systems. With excellent corrosion protection for aluminum, carbon steel, stainless steel, copper, and other metals, it operates reliably from -35°C to 150°C. Environmentally friendly, safe, low-toxicity, odorless, non-flammable, and non-volatile.

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Product Introduction

Glacier Coolant LM-4D-YE is a professional industrial coolant designed for indirect cooling systems, transferring cooling capacity from refrigerant to cooled substances. Formulated with a modified diol solution and composed of organic corrosion inhibitors, antioxidants, antifoam agents, and deionized water, this product features low conductivity and is free of salt components such as silicon, phosphonates, and nitrite.

LM-4D-YE offers excellent corrosion protection performance for aluminum, carbon steel, stainless steel, copper, and other metals. It operates reliably from -35°C to 150°C when prepared to appropriate concentrations. At 40% concentration, the freezing point is -23.5℃ and boiling point is 105.5℃. Conductivity ranges from 440 to 820 µs/cm depending on concentration.

The coolant incorporates Glacier Coolant's proprietary Modify 2000 composite modification technology, offering strengthened specific heat and thermal conductivity, reduced viscosity, inhibited volatilization, sterilization and scale inhibition, and wide temperature range resistance.

The corrosion inhibitor package is composed of organic components such as pure natural organic acids and organic bases, free of salt substances. These organic components form stable coordination bonds with metals, creating a dense super corrosion protection film on the metal surface that avoids electrochemical corrosion caused by direct metal contact.

LM-4D-YE is compatible with non-metallic materials including PVC, fluororubber, latex, HDPE, natural rubber, PP, silica gel, and PTFE. It is widely used in chemical industry, pharmaceutical manufacturing, and cold storage.

As part of Glacier Coolant's 30 years of expertise in anti-rust and anti-corrosion solutions for industrial secondary refrigerants, the LM-4D-YE series delivers a safer, more efficient, and more reliable cooling solution.

Physical parameters at different concentrations (reference value)

Concentration %（wt）	30	40	50	60
Relative density (20℃, g/cm³)	1.040	1.056	1.070	1.082
Freezing point (℃)	-15.0	-23.5	-35	-49
Boiling point (℃)	104	105.5	107	109
Conductivity (µs/cm)	820	670	510	440

Physical parameters of diluent (reference value)

Mass concentration	Freezing point	Boiling point	Use temperature	Viscosity	Thermal conductivity	Specific heat	Density
%	℃	℃	℃	cP	W/m·K	kJ/kg·K	g/cm³
40	-23.5	105.5	20	3.03	0.422	3.419	1.056
			10	4.27	0.412	3.369	1.060
			0	6.50	0.408	3.320	1.064
			-10	10.48	0.396	3.229	1.069
			-20	18.28	0.385	2.744	1.072

Product Features

The refrigerant treated by our company's proprietary Modify 2000 composite modification technology has the following characteristics:
◎ Strengthen specific heat and thermal conductivity, improve cooling capacity.
◎ Reduce medium viscosity, save transportation energy consumption.
◎ Inhibit liquid volatilization and reduce use consumption.
◎ Sterilization, algae and scale inhibition to improve the system environment.
◎ A variety of corrosion protection to prolong the service life of equipment .
◎ Wide temperature range and good resistance to high and low temperature.

Anticorrosion Mechanism

The corrosion inhibitor package in LM-4D-YE glacier coolant is composed of organic components such as pure natural organic acids and organic bases, free of salt substances. These organic components can form stable coordination bonds with metals and form a dense super corrosion protection film on the metal surface, avoiding electrochemical corrosion caused by direct contact with metals.