Exothermic powder to be applied to the surface of the uprights. It is supplied in 30 kg bags.
It is added after pouring on the uprights, leaving unfilled in these approx. 25 mm and placing 20 mm of the Thermi Cubriente in that space. It causes an insulating and exothermic reaction, keeping the liquid iron in that state for longer and decreasing the “rechupe” problem. It is provided in two types: Thermi covering 1: medium and medium reaction exotherm Thermi covering 2: rapid reaction and high exotherm