You can do this by applying something like blue grit to the surface of the woodchip. Should you opt to plaster over woodchip, you will need to prime the surface which will give the plaster the ability to bond to it. However, the recommendation is to remove woodchip where possible. Woodchip is known to be difficult to remove, which might make you consider plastering over. A good example of this would be woodchip. This is especially true if the removal of an existing surface is a big job. It can seem tempting to apply plaster over surfaces, rather than removing them. It could also cause problems with the plaster going off, meaning it could affect the plasters drying process. This can eventually cause the wallpaper and paste to soften and loosen, increasing the risk of it coming away from the wall. When skimming over wallpaper, the moisture in the plaster could be absorbed by the paper. However, there is a risk that the paper and plaster could come lose, so this is not considered a good approach. If the wallpaper is fixed firmly to the wall with no bubbles or loose sections, then the plaster will bond. It is possible to skim over wallpaper, but it is not recommended. This will ensure the plaster gets a good hold and doesn’t fall away from the wall. For this to occur, the surface must be in good condition and provide a decent key, which will allow the plaster to adhere correctly. Plaster needs to form a solid bond to the subsurface. Plastering is a highly skilled job, and to achieve the perfect finish, it’s vital that all surfaces are prepared correctly. When you buy after clicking a link on our site, we may earn an affiliate commission.
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