Either way, using the wrong grit sandpaper will leave an imperfect finish. Similarly, playing it safe by using too fine a sandpaper, will not only be labour intensive, it can also result in failure to remove the imperfections on the substrate entirely. Using sandpaper that is too coarse can cause damage not easily remedied, like leaving deep scratches on the surface. It’s very important to use the right type of sandpaper and the appropriate grade or grit. Steel wool and sandpaper are the most commonly used abrasives and the process can be undertaken manually or with an electric sander.įor the purposes of this guide, we will look at different types of sandpapers and their specific uses. On the other hand, where a surface is too smooth or glossy, the paint will have difficulty attaching so sanding with sandpaper or steel wool is used to roughen the surface to make it a little easier for the paint to adhere to.ĩ Final Thoughts Why Choosing the Right Abrasive Is Important For example when applied to old flaking paint a new coat will not adhere properly. However, while it can be a laborious task to sand down a surface in preparation for painting, it’s a vital step to ensure a good quality finish. When embarking on home improvements, the temptation is to dive straight into the most rewarding part. Sanding can make little imperfections and signs of wear and tear on furnishings, doors, wooden floors and walls in your home disappear. It’s a practice that dates back to 13th century China and for many years has proven its usefulness in making surfaces smoother, removing layers of unwanted material e.g.old paint or rust and in some cases making a surface rougher to allow paint, glue or filler to adhere better. However getting this part of the process right is essential to achieving a great finish, and there may be more to it than you think.įrom removing rust on patio furniture to sanding down wooden floors, in the simplest terms, the process of sanding is smoothing a surface by rubbing it with something rough or abrasive. Sanding is one of the most common preparatory tasks in home decorating and is sometimes taken for granted. Sanding ensures that the surface remains free of debris and that the finish is smooth and professional.Whatever the DIY project, there’s always a certain amount of preparation involved. In addition to stripping the outer layer of gloss, you can also use sandpaper to correct imperfections and remove stains. Without sanding the surface in advance, the new coat of paint won't stick to the previous layer. Sanding a surface removes the top glossy layer, allowing the substance to receive the primer. Whether you're priming a porous substance such as wood or a smooth substance such as metal, you need to sand the substance beforehand. In addition, tinted primer can reduce the number of coats of paint you need to achieve a finished look. Furthermore, primer eliminates stains and makes the paint job last longer. As a result of its chemical composition, the primer forms a binding layer, protects the material from mold and seals pores on the surface. It's important to apply primer before painting because it protects the surface and enables the paint to adhere better. Woodworking requires different grit of sandpaper to achieve different finishing.
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