Substrate preparation

For surface refining measures, e.g. application of plasters and renders, corrosion protection, paints, varnishes, it must be ensured that they will adhere to the base, e.g. concrete/masonry, metal, wood. Thus the substrate must be assessed and pre-treated appropriately. It is cleaned, e.g. using the different blasting methods or chemical treatments, as pickling, degreasing, etc. and, if necessary, gets further treatment e.g. with plaster base, fillers, undercoats.