Causes |
- Erosion
- Weakly adhering underlying coatings
- Inadequate surface preparation (previous redecoration)
Inadequate surface preparation is often the cause of these types of failures. Defective coatings should be completely stripped back to a bare surface. Where breakdowns are extensive, the complete section of joinery should be stripped back to a natural joint. It is essential that all surfaces are clean, sound and dry before applying selected coating system. Existing floors may require power sanding to produce a clean, smooth surface before treatment. |
Solution:Remove all loose and defective coatings by scraping and/or the use of a hot air paint stripper, or a proprietary paint/varnish remover. Rub down and feather edges of sound coatings with a fine grade abrasive paper. Remove all dust. Areas of bare, exposed timber may require additional localised woodstain treatment in order to ensure uniformity of colour when using clear finishes. |
