Special antifreeze liquid for solar water heaters to protect against freezing during the winter months and ensure more efficient circulation of the "liquid" in the closed circuit. It is based on propylene glycol, ensuring more efficient heat transfer in solar thermal systems at high and low temperatures, while simultaneously increasing their efficiency.

Unlike most products on the market (ethylene glycol liquids), it is non-toxic and certified by InS with an HT1 certificate for suitability in contact with edible products, so you do not run any risk in case of a solar leak or any problem during the transport and replenishment of the liquid.

It is also specially designed to provide full protection against corrosion and rust caused by water and oxygen, thus providing a longer lifespan for your solar system.

This antifreeze performs excellently at low and very low temperatures, providing real protection down to -32°C.