Stron LLC sells heat transfer fluids for solar systems through its partners:

Apogey GMBH

(044) 564-95-10

(044) 565-15-75


(044) 545-71-04

(067) 445-45-98

(093) 426-37-10

(050) 440-01-74

Family of TEPRO heat transfer fluids for solar systems (solar collector) includes two models: Tepro-Solar 30P and Tepro-Solar 20P


Heat transfer fluids Terpo-Solar-P are fluids based on propylene glycol with freezing temperature below 00С, specifically designed for use in a solar thermal systems (solar collectors).


Composition: Propylene glycol, distilled water, corrosion inhibitors, antifoamers, dye.
Package of corrosion inhibitors effectively protect ferrous and non-ferrous metals from corrosion and sealing parts from deformation.

Physical and chemical properties:


Tepro Solar 20P/30P


Clear homogeneous liquid


Relevant to the used dye

Density at 200С, g/cm3


Freezing point, 0С, not more

-20 / -30

Fraction indicators: Initial boiling point, 0С, not lower than


Maximum proportion of fluid, pumped to reach temperature of 150 0С,%, not more

70 / 60

Corrosive action on metals, g/m2 per day, not more:

-Copper, brass, steel, cast iron, aluminium

- Solder




oaming, volume of foam after 5 minutes, cm3


Foam stability, sec, not more than


Swelling of rubber,%, not more than




Alkalinity, cm3, not less than



Heat transfer fluids are ready for use.

Do not dilute with water! Prevent mixing with foreign substances! Do not mix with heat transfer fluids of other manufacturers!
Due to the high fluidity of heat transfer fluids(relative to water) pay special attention to the quality of installation.

Heat transfer fluids must be operated under normal conditions

  • Before filling the system with the fluid, wash, clean the system and make sure it is waterproof;
  • Avoid boiling and freezing of the heat transfer fluid;
  • If it is necessary to add the heat transfer fluid, use only heat transfer fluid of the same model.

Warning! Content of the operated heat transfer fluids may change in case of failure to comply with the above mentioned measures, as well as in time.


Due to high water content, Tepro-Solar P heat transfer fluids are non-flammable and explosion-proof.
Tepro-Solar P heat transfer fluids are based on propylene glycol, which is included in the «List of permitted food additives» approved by the Resolution of the Cabinet of Ministers of Ukraine on 04.01.1999 No.12, under code E1520.

Heat transfer fluids have safety and health conclusions.
Notwithstanding the abovementioned, propylene glycol is a moderately hazardous substance. Maximum acceptable concentration (MAC) of propylene glycol vapour in the air is 7 mg/m3.
Do not swallow the heat transfer fluid!

Use only in technical systems strictly in accordance with the purpose!


General measures: Provide comfortable position, warmth, rest, access to fresh air, and conditions for unhampered breathing.
After contact with skin and mucous, rinse thoroughly with plenty of warm running water to completely remove the product.
If swallowed: Clean the mouth of residues of the product, rinse the mouth with water, provide abundance of water, give saline purgative. Consult a doctor.


Provide good ventilation of the premises.
Take measures against further leak, fence the place, collect spillage using rags, sawdust, suitable absorbing material and send it for disposal.
If the spilled heat transfer fluid is washed with water, send the water to the wastewater treatment unit.

Avoid spilling to water and soil.


Heat transfer fluids must be transported in sealed containers.
Heat transfer fluids must be stored in tightly sealed containers in well-ventilated warehouses and outdoor areas, protected from direct sunlight.
Guaranteed shelf life is 5 years from the date of manufacture.


Service life of the heat transfer fluid depends on its operation regime.
To maximize the service life of the heat transfer fluid, it is recommended to strictly adhere to the rules of operation set forth in Application section, and regularly monitor the condition of the heat transfer fluid:

  • In case of an emergency;
  • Once a year if there are no emergencies.

In many cases the heat transfer fluid, parameters of which for whatever reasons no longer comply with the standards, can be corrected to the normal state.
In case when correcting of the heat transfer fluid is not possible, the heat transfer fluid is sent to specialized organizations for disposal according to DsanPІN