Surface preparation can be defined as a variety of techniques for treating a material’s surface prior to applying a coating, glue, or other treatment. Surface preparation is mainly required before painting, coating, or lining steel and other substrates. To remove pre-existing coatings, surface defects, organic matter, oxidation, and other pollutants, surface preparation can be done chemically or mechanically. Substrate materials like aluminium, concrete, plastic, steel, other alloys, and wood are prepared using a variety of surface preparation procedures. Wood sander dealers in Noida provide the best quality of wood sanding machines at affordable prices.