Both Scrapers and Sandpapers are used to remove small amounts of material from surfaces of paintings, either to make them smoother or to remove a layer of material.
Although it may seem boring and time-consuming, sanding is deceptively important work, and crucial to a well-finished project.
The first recorded instance of sandpaper was in 13th century China when crushed shells, seeds, and sand were bonded to parchment using natural gum. Shark skin was used as a sandpaper. Sandpaper was originally known as glass paper, as it used particles of glass.
Sandpaper has occasionally been used as a surface for painting, as by Joan Miro. Sandpaper was even used as a musical instrument, in Leroy Anderson's Sandpaper Ballet.
The effective use of Scrapers requires skill and concentration,however its versatility and appropriateness far outweighs the hard work it requires, or is perceived to require. Scrapers are normally made from high carbon steel. There are many manufacturers who provide scrapers in a wide variety of styles. Most scrapers are either oval or blade-like in shape. The working edges of scrapers tend to be convex, and many have trimmed and dulled lateral edges to facilitate hafting.
Scarpers and Sand Papers are effective painting tools which help creating and maintaining valuable pieces of Art.They are , in fact as important as brushes and canvases.