How To Prep A Wall To Paint – D.I.Y. At Bunnings


I’m going to show you how to undercoat a wall. I’ve got the tools and materials ready here
to do that: my paint tray and a liner to help with cleanup, my paint, some masking tape,
sandpaper, sanding block, an extension pole if I need to reach the high areas, a variety
of rollers and brushes, safety gear, some water and a rag to get the dust off, and my
drop sheets to protect the floor and furniture. So the first thing I’m going to do is tape
up the floor to protect it and lay my drop sheets. Because I have a new wall, the plasters have
already give it a good sand, but it’s always best to check. Any excess lumps of plaster can be removed
gently with a scraper before sanding. Now you need to clean the wall with a damp
cloth to remove the excess dust and grime. The next step is to cut in. The reason you cut in is to get right into
the corners, and later when we’re rolling, it will cover up the brush marks. Because this is a new wall it’s a good idea
to paint before you add the skirting boards later. Now we’re ready for the rolling. I’m painting a brand new wall, so it’s always
best to undercoat. The undercoat will help the topcoat stick
to it and will also help the with any imperfections in the wall. If you had an older wall with a different
color, it’s best to undercoat, as it will help the new color have better coverage. Don’t forget to remove the masking tape to
prevent the paint from cracking and lifting at a later date. So, that’s it. That’s how you undercoat a wall ready for
painting.

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