However, if the surface is stained with nicotine you may want to consider using a specialist primer. You won't need to prime a surface that's been painted before and is in good condition - washing and light sanding are usually enough. If you don’t, you risk wood particles sticking to freshly painted surfaces. When you've finished, you'll also need to dust down the whole sanded surface from ceiling to floor, and vacuum it thoroughly. Sanding wood creates a lot of dust, so make sure you wear a dust mask and eye protection, have plenty of ventilation and cover anything vulnerable with dust sheets. This will create a smoother finish to paint over. Work from a lower grade sandpaper and finish with a higher one. When sanding wood, try to work in the direction of the grain. If you are smoothing rough surfaces, run your hand over the area to check if it’s smooth and matches the rest of the area. Sand the surface in circular motions covering all areas. When sanding, use a sanding block and wrap the sandpaper around it, this will ensure you cover an even surface. For this task we would recommend a multi-purpose sandpaper such as a 70 grade, we also offer mix grade sandpaper packs which are great for a variety of different projects. A higher grade will give a finer finish on more delicate surfaces. For example a 70 grade paper is great for quickly removing excessive debris however it will leave a rough surface. The grades of wallpaper are based around the finish you are aiming for. When sanding the surface of the walls use a smaller grade/grit of paper. On stripped plaster, sanding can level out any repairs and remove stubborn traces of old wallpaper or paste. It also gives a slight roughness (known as a 'key') that helps primer or paint to adhere to. Sanding creates a smooth, even foundation that massively improves your final finish. Instead, try to wash and scrape off as much as possible, and then seal the wall with a stabilising solution. It's not a good idea to paint or wallpaper over it, as neither will stick. This old-fashioned emulsion is often dusty or powdery to the touch, and rubs off as you wash the surface. In older houses, you still sometimes find distemper. Not only does the sugar soap clean the surface, it also provides a better surface for the paint to adhere to Leave the solution for a few minutes before rinsing off with clean tap water and sponge. Some sugar soaps come in a dissolvable powder or pre mixed liquid form.Įnsure you wear safety goggles and gloves when using sugar soap as it can irritate your skin.Īpply this with an old (clean) paintbrush or sponge, working into the surface as if you were washing the dishes. Grease, nicotine stains, children's drawings and finger marks can all be taken off with sugar soap. The less dirt or grease on a surface, the better your final paint job will look. You should always wash a previously painted surface before painting over it. There may even be areas that need touching up on new surfaces. No paint can properly mask grubby or uneven surfaces, so make sure you remove any dirt, grease and loose or flaking material, fill any holes and repair defects. The difference between a good and bad paint job usually depends on how carefully you prepare the surface. Clear away all metal dust and small pieces before starting work again. It's also a good idea to put on some safety goggles to protect your eyes.Īlso remember to wear protective goggles and masks when cutting or sawing metal. If there is lead, use a specially formulated liquid sander instead. If you're in any doubt, use a simple lead testing kit. With old paint, there can be an extra risk of breathing in poisonous lead dust. You can paint over emulsion-painted surfaces that are in good condition, but make certain you strip back or sand off any peeling paint.Īlways wear a dust mask while you're sanding. You should fill any cracks and holes and make sure all surfaces are clean, smooth and dry. Walls almost always need some surface preparation before you can start painting.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |