First of all, the silos -which are 30-40 metres high- were cleaned, before applying a high-quality paint system in three layers from PPG.
The preservation of the silos is done in phases: first the undercarriage, then the silo an sich and then the roof. Moreover, all this happened when the silos were lying dismantled on the ground. The silos were only complete when the Cementbouw logo was applied with a stencil.