GLITHERM PRO CONCENTRATE is a highly concentrated heat transfer and antifreeze fluid designed to protect installations against freezing. The product is based on high-quality monopropylene glycol (MPG) and is intended for the preparation of working solutions with parameters tailored to the requirements of a specific installation.
GLITHERM PRO Concentrate is designed for use in heating, cooling and process installations where a working fluid based on monopropylene glycol is required. A carefully selected package of corrosion inhibitors and performance-enhancing additives provides effective corrosion protection, helps reduce the formation of deposits and supports the cleanliness of the system. High-quality raw materials protect both the fluid and installation components against degradation, ensuring long-lasting, reliable and efficient operation.
Dilution
GLITHERM PRO CONCENTRATE is not a ready-to-use product. It must be diluted with water before application. The manufacturer recommends using demineralized water to prepare working solutions.
To achieve the required level of freeze protection, prepare the mixture according to the following table:
| Required minimum temperature of the mixture in °C |
% Concentrate* | % Demineralized Water* |
|---|---|---|
| -35°C | 55 | 45 |
| -30°C | 52 | 48 |
| -25°C | 47 | 53 |
| -20°C | 42 | 58 |
| -15°C | 36 | 64 |
* Volume percentage concentration.
For GLITHERM PRO Concentrate dilution ratios intended for non-standard operating temperatures not listed in the table above, please consult our Customer Service Department. Our advisors will perform the necessary calculations and provide a dedicated solution tailored to your requirements.
Applications
GLITHERM PRO fluid is suitable for use in:
- Heating, central heating and technological heat recovery systems
- Cooling and air-conditioning systems (HVAC)
- Heat pumps, including air-source and ground-source systems
- Refrigeration units and chilled water systems
- Installations using renewable energy sources, including solar systems
- Industrial process cooling systems
- Temperature control systems used in technological and production processes
- Industrial installations requiring a monopropylene glycol-based fluid
- Fire protection and sprinkler systems requiring freeze protection
Material Compatibility
GLITHERM PRO fluid is compatible with installations made of the following materials:
- steel
- cast iron
- aluminium
- copper
- solder
- brass
Application Limitations
GLITHERM PRO fluids should not be used in installations containing galvanized components, as they may accelerate corrosion and contribute to the formation of deposits, potentially reducing system performance.
UV Leak Detection Additive
Upon customer request, the fluid can be supplemented with a UV tracer, which enables quick detection of leaks using a UV lamp. The additive does not affect the product’s performance properties.
CLP Classification and Labelling
Always refer to the information provided on the product label.
Precautionary statements:
P102: Keep out of reach of children.
- Always follow the system operating recommendations provided in the manufacturer’s instruction manual.
- Intended Use: A glycol-based concentrate (propylene glycol) for heating and cooling systems (protection against freezing and corrosion).
Instructions for Use:
- Dilution: Dilute with water before use (demineralized water recommended).
- System Preparation: Before filling, it is recommended to drain and flush the system.
- Application: Fill the system with the prepared solution and thoroughly vent it.
- Control: Periodically check concentration (refractometer), pH, and fluid condition.
- Operation: Replacement recommended every 3–5 years or depending on operating conditions.
- Limitations: Do not use the concentrate undiluted. Do not mix with other fluids.
- Storage: Store in tightly closed containers at temperatures between +5°C and +30°C.
- Safety: Use in accordance with the Safety Data Sheet (SDS). Avoid contact with eyes and skin.

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