![]() ![]() If you notice bubbles while applying the first coat, you should ignore them until the time is right, as you can make them worse. However, the aim is to deal with them at the right time. When you see bubbles while plastering, you might feel tempted to pop them or go over them with a trowel immediately. How Do You Repair Blisters in Plaster Walls? This should then prevent bubbling from occurring. If bubbling is still a problem, make sure the plaster is flat and almost set, before using a heavy trowel action with a small amount of water. Then, when you apply the second coat, keep the mix thin. Once the wall has been covered, you should leave it alone. One general rule of thumb is to cover around 4sq/m at a time. So, apply the first coat as quickly as possible and work it flat. ![]() Too often, people go back to the first coat too soon. You should apply the first coat and leave it alone until it stiffens. This is natural, as you’ll want to achieve a perfectly smooth finish, but it is not necessary. This means that when you apply the first coat, you spend too much time trowelling it. It’s possible that you might also be over-trowelling. If you add too much water, this can also cause bubbling, so you should ensure your mix is the correct consistency. If it is too thick, this can cause air to get trapped. This reduces the amount of air in the mix and will create a smoother mixture.įurthermore, the mix should be the right consistency. The correct way is to use a circular motion, while leaving the paddle in the plaster while stirring. It’s common for people to mix plaster by lifting the paddle mixer in and out of the mix during mixing.īy lifting it in and out of the plaster, it enables air to enter the mix, and this can cause the plaster to bubble. If air in the mix is the cause of the problem, then your mixing technique might need to change. ![]()
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