Graph showing the temperature & humidity steps required during cyclic corrosion test VDA The outdated cyclic corrosion lab test VDA (Figure 2) used by base-material, adhesive and sealant suppliers is practically no longer used in its original form by automotive manufacturers. The test standard VDA (VDA – Wechseltest) Salt mist, condensed water, standard climate (18°C, salt mistweek VW P In this paper the focuses is on the anticorrosion behaviour of press hardened galvanized steel sheet in unpa