Review temperature and metallurgy together
The L and GL variants address aluminium compatibility; the G and GL variants address different temperature requirements. Use the catalogue model references to establish the shortlist.
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Heat transfer fluids
A non-combustible coolant family with variants for aluminium compatibility and elevated-temperature operation. Select the exact concentration and model for the process.
Modified organic acid salts
| Model | Temperature range (°C) | Freezing point (°C) | Viscosity (cP) | Density (g/cm³) | Specific heat (cal/g·°C) | Thermal conductivity (W/m·K) |
|---|---|---|---|---|---|---|
| LM-8 | −50 to +50 | −60 | 3.78 | 1.360 | 0.585 | 0.464 |
| LM-8L | −50 to +50 | −60 | 3.78 | 1.360 | 0.585 | 0.464 |
| LM-8G | −50 to +100 | −60 | 3.78 | 1.360 | 0.585 | 0.464 |
| LM-8GL | −50 to +100 | −60 | 3.78 | 1.360 | 0.585 | 0.464 |
| LM-850 | −40 to +50 | −50 | 3.46 | 1.337 | 0.585 | 0.477 |
| LM-850L | −40 to +50 | −50 | 3.46 | 1.337 | 0.585 | 0.477 |
| LM-850G | −40 to +100 | −50 | 3.46 | 1.337 | 0.585 | 0.477 |
| LM-850GL | −40 to +100 | −50 | 3.46 | 1.337 | 0.585 | 0.477 |
| LM-845 | −35 to +100 | −45 | 3.31 | 1.318 | 0.634 | 0.482 |
| LM-840 | −30 to +50 | −40 | 2.97 | 1.293 | 0.643 | 0.490 |
All properties are printed at 20°C. The catalogue lists no flash point for this series, and states aluminium compatibility only for the L and GL variants.
Catalogue reference values, not a final specification. Select the exact model and concentration with our technical team. Request the current technical data sheet and safety data sheet before use.
View source: catalogue page 20Aluminium compatibility is specific to L/GL variants. Non-combustibility does not remove the need for a current SDS and material-compatibility review.
FROM FORMULATION TO APPLICATION
LM-8 is a modified organic-acid-salt coolant family for industrial secondary refrigeration. The base, L, G and GL designations should not be treated as interchangeable.
The L and GL variants address aluminium compatibility; the G and GL variants address different temperature requirements. Use the catalogue model references to establish the shortlist.
Viscosity and heat-transfer properties depend on concentration and temperature. Request the relevant property curves rather than selecting solely on a room-temperature stock-fluid value.
LM-8 · LM-8L · LM-8G · LM-8GL
Application notes are adapted from Glacier’s original product information. Numeric specifications on this page follow the supplied catalogue; earlier website figures may differ. Always obtain a current model-specific TDS and SDS. Links below point to the original source pages, not new technical documents.
Changing a secondary coolant is more than draining and refilling. Confirm compatibility, the cleaning method and the first monitoring window before you start.
Published condemning limits for heat transfer fluids contradict each other. Learn how to read the trend, not the threshold, before deciding to change a charge.