VFL is an advanced mono polypropylene glycerol based, designed and formulated in order to ensure effective heat transfer properties at high or low temperatures on your solar thermal system while increasing its performance.
Unlike most competitive products in the market it is non-toxic and certified by InS with HT1 certificate, suitable for food contact. So no risk in case of contact with the water you use.
Moreover, it protects your system against low temperatures during the winter time and provides protection up to -32 ° C.
It is also specially designed to provide complete protection from corrosion caused by water and oxygen, providing a life span to your system.