Antifreeze, anti-thermal & anti-rust liquid. It is added to the closed circuit of the solar water heater and prevents the extreme phases of water from manifesting (i.e., it prevents the formation of ice in winter and boiling in summer).

The solar water heater is kept in excellent condition winter - summer (water temperatures from -51°C to +105°C), if the material is added as is.

It contains anti-rust and preservative additives so that the closed circuit of the solar water heater does not corrode.