Traditional metal cable trays, including galvanized steel, may fail prematurely, leading to frequent maintenance, downtime, and safety risks. There is a solution for each type of environment. This white paper compares the High Resistance (HR) and Hot-Dip Galvanising (HDG) solutions and highlights the new High Resistance range, ZnAl. Cable trays, which provide vital support and protection for electrical wiring, must be chosen with consideration for the specific environmental conditions in which they will be used. However, exposure to harsh environments can lead to corrosion, compromising their structural integrity and safety.