While copper bonded earthing rods strike a solid balance between conductivity, corrosion resistance, and cost-effectiveness, there are a few drawbacks worth considering: Potential for Copper Bond Degradation: Over time, particularly in highly acidic or alkaline soils, the copper coating on the steel core can wear down. If this copper layer gets damaged, the underlying steel may be ... https://www.pioneerpowers.com/copper-bonded-earth-rod.php