Specialty coolants

LM-14 series

Name: LM-14 series
Brand: Glacier Coolant

Electrically insulating fluorinated fluids

Specialty fluids described for electrical insulation, chemical inertness and precision temperature control, with applications including electronics and semiconductor equipment.

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LM-14 series product photograph — Manufacturer product photograph.

CATALOGUE TEMPERATURE REFERENCE−110°C to +135°C · model-dependent

Formulation

Modified perfluorinated compounds

A closer look.

Electrical-insulation focus
Non-flammable formulation
Precision equipment cooling

Model and property references

LM-14A: −110 to +40°C
LM-14B: −110 to +50°C
LM-14C: −110 to +65°C
LM-14D: −80 to +80°C
LM-14E: −55 to +100°C
LM-14F: −50 to +105°C
LM-14G: −25 to +135°C

LM-14 series catalogue reference values (Table 12)

Model	Temperature range (°C)	Freezing point (°C)	Boiling point (°C)	Viscosity (cP)	Density (g/cm³)	Specific heat (cal/g·°C)	Thermal conductivity (W/m·K)
LM-14A	−110 to +40	<−120	50	1.03	1.611	0.267 cal/(g·°C) = 1.12 kJ/(kg·K)	0.060
LM-14C	−110 to +50	<−120	75	2.53	1.735	0.223 cal/(g·°C) = 0.93 kJ/(kg·K)	0.060
LM-14D	−80 to +80	<−95	90	1.84	1.791	0.243 cal/(g·°C) = 1.02 kJ/(kg·K)	0.067
LM-14E	−55 to +100	<−95	109	4.01	1.830	0.241 cal/(g·°C) = 1.01 kJ/(kg·K)	0.060
LM-14F	−50 to +105	<−95	115	2.99	1.831	0.240 cal/(g·°C) = 1.00 kJ/(kg·K)	0.063
LM-14G	−25 to +135	<−80	150	6.32	1.814	0.235 cal/(g·°C) = 0.98 kJ/(kg·K)	0.065

All properties are printed at 20°C. The catalogue prints an operating range for LM-14C and lists a +60°C boiling point for LM-14B.

LM-14A–G properties (mfr. data-centre application document)

Property	LM-14A	LM-14B	LM-14C	LM-14D	LM-14E	LM-14F	LM-14G
Operating range (°C)	−110 to +40	−110 to +50	−110 to +65	−80 to +80	−55 to +100	−50 to +105	−25 to +135
Density at 20°C (g/cm³)	1.611	1.721	1.735	1.791	1.830	1.831	1.814
Boiling point (°C)	50	60	75	90	108.5	115	150
Freezing point (°C)	−120	−120	−120	<−95	<−95	<−95	<−80
Dynamic viscosity at 20°C (cP)	1.03	1.05	2.53	1.84	4.01	2.99	6.32
Specific heat at 20°C (kJ/(kg·K))	1.1054	0.6888	0.9227	1.019	1.0073	1.0036	0.983
Thermal conductivity at 20°C (W/(m·K))	0.0601	0.05889	0.05948	0.06648	0.06012	0.06257	0.06527
Saturated vapour pressure at 20°C (kPa)	32.27	17.748	16.36	11.09	5.646	5.641	8.837
Dielectric constant	1.89	1.82	1.89	2.03	2.07	1.92	3.82
Dielectric strength, 0.1 in gap (kV)	55	>40	55	>39	>32	>39	40
Volume resistivity (Ω·m)	10¹¹	10¹¹	10¹⁵	10¹⁵	10¹⁵	10¹⁵	10¹⁵
Surface tension (mN/m)	12.2	13.4	12	14.2	15	12	16.5
ODP	0	0	0	0	0	0	0
Metal corrosion, as stated by the manufacturer	No corrosion to copper, carbon steel or aluminium

From the manufacturer's data-centre application document. The operating ranges for LM-14B and LM-14C differ from the catalogue: the data-centre document pairs LM-14B with −110 to +50°C and LM-14C with −110 to +65°C, and the catalogue prints −110 to +50°C for LM-14C with a +60°C boiling point for LM-14B. Values are stated at 20°C.

Reference values from the Chaoyang Guangda LM catalogue — typical figures rather than guaranteed limits. Confirm the exact model and concentration on the current model TDS before specifying.

View source: catalogue p.25 (PDF p.29)

Before you specify

Confirm composition, material compatibility and the electrical test method for the model you specify. Equipment approval is established by the equipment vendor.

FROM FORMULATION TO APPLICATION

Start with the cooling architecture.

The LM-14 reference discusses fluorinated fluids for electronic thermal management, including immersion and phase-change cooling concepts.

01 / APPLICATION NOTE

Single-phase is not two-phase

Define whether the system relies on sensible heat or controlled boiling. Boiling point, electrical properties and equipment compatibility must be confirmed for the exact fluid and architecture.

02 / APPLICATION NOTE

Confirm equipment and environmental requirements

Request current technical, safety and environmental documentation. Generic website energy-saving, GWP and equipment-compatibility claims are not used as validated specifications here.

REFERENCED MODELS

LM-14 series

About these product references

Application notes are adapted from Glacier’s original product information. Unless a table states otherwise, numeric specifications follow the supplied catalogue. For the confirmed specification, obtain the current model-specific TDS and SDS. Links below point to the original source pages, not new technical documents.