In average soil conditions, H-1 alloy, commonly known as standard potential magnesium, is an excellent choice for use in cathodic protection systems. Typically, CORRTECH H-1 anodes produce a minimum opencircuit potential of 1.52 volts with respect to Cu-CuSO₄. Therefore, the driving potential of the H-1 cathodic protection anodes exceed that of aluminum or zinc, but is still lower than a high potential magnesium anode. We suggest using CORRTECH Standard Potential Magnesium Anodes in soils with resistivity lower than 2000 /cm to minimize the cost, as this kind of anodes are much cheaper than high potential magnesium anodes.

If required, the H-1 anode will be packaged in a cloth bag with prepared backfill mixture of 75% gypsum, 20% bentonite and 5% sodium sulfate. The backfill mixture works to maintain moisture around the anode and lowers the anode to earth resistance. The packaged anodes are shipped on pallets.