Causes |
- Eroded substrate or finishes
- Deterioration of underlying coatings/treatments
All loose and powdery deposits must be removed during preparation and surfaces fully stabilised in order to provide a good foundation and ensure the satisfactory adhesion of all subsequently applied coating systems. |
Solution:Remove all loose and powdery deposits by thorough brushing with a stiff bristle brush (not ferrous wire) or washing off before applying a liberal application of Crown Trade Alkali Resisting Primer. |