Surface preparation is the most important thing before doing a painting job. it time-consuming but skipping it would not do any favors to the overall painting job. Durability of any painting coat depends upon complete and careful preparation of the surface before painting. The surface should be even, dust free and smooth. Any cracks, loose flakes, high moisture and holes or any other imperfections do not let the paint adhere correctly to the surface. Inadequate surface preparation results into majority of paint failures.
Surface preparation techniques vary according to the type of surfaces. Interior and exterior surfaces even cannot follow the same procedure. Similarly, it would vary considering its fresh painting or repainting. In case of repainting, it is not necessary to remove entire, existing paint layer, but to remove all loose flakes. Painting over the broken pieces can result in coming off of the old paint along with the new paint.
Now a days we are using SANDER MACHINE WITH LED & VACCUM SYSTEM to Remove any peeling or chipped paint. by using this sanding machine, sanding job become more easier, dust free, time-saving, hassle free. for wooden & metal portion we used sanding paper, putty patty etc
after proper sanding Clear away any plaster that has become loose. identify the undulated area of the wall, damp areas, cracked areas, e.t.c. use two coats of putty application on undulated area to smooth the wall for better finish of paint. use latex based branded products for curing damp, use crack fill pest for fill up the cracks up to 5mm.