A surface can only be as good as its substrate. This applies to any surface. This of course applies especially to surfaces with high functional demands or subjected to maximum stress. Professional substrate preparation is thus the be-all and end-all priority to any coating – irrespective of how it is applied. An even, very smooth surface is a must. Cracks should thus be meticulously sealed and porous or strongly absorbent substrates should be suitably primed. Any areas at risk of greases, oils or dried water marks showing through will require additional isolation.
The spot and repair fillers will reliably produce the desired result where minor damaged spots need to be smoothened over. Very fast drying times will allow several coats to be applied in succession. An immaculate surface is achievable by finely polishing the dried filler.
For larger damaged areas, we can recommend our classic product: Ahrweilit Filler. This filler is easily applied; it has good coverage and long open times. A stopping knife will normally adequately smoothen the filler. This will obviate an elaborate polishing. Important to later treatment when brushing and spraying: Fully stopped surfaces may be directly coated.