How to Repair Crack Holes on Wall and Apply Wall Putty Before You Paint Them
Cracks and holes on walls can be formed through various ways. These include deteriorating of the materials used on the wall, piercing of the walls with a sharp object, cracks formation due to the age of the buildings. There are some cracks and holes you can easily fix yourself without necessarily calling the handyman over, as all you will need is the right tools, which you can purchase or borrow from your neighbour.
Dry Walls and Plastered Walls
The first thing is to determine the kind of material the wall is made up off: is it a drywall or plaster wall? Dry walls are easier to repair than plastered walls, though each has its own advantages and disadvantages. With drywall, having only one layer, you can easily remove the section that is bad, whereas, with plastered walls, you have to fix the particular part that needs repair without affecting areas close to the part that needs repair.
Plastered walls have more than one layer. So, you just have to refill the affected area, smooth the area with a level plank of wood, as tearing the section might lead to more damage from an experienced handyman like you.
Materials Needed for Fixing Cracks and holes on Walls
All you need to fix the crack or holes on your walls are just simple tools that you can get cheaply at your local shops. For larger cracks, you have to contact your local contractor to fix such cracks and holes. However, for dry walls, you will need general purpose filler, a tape, a razor knife or your kitchen knife might do if it is sharp enough to scrape the edges of the walls off, fiberglass tape, sand paper. You might visit your local shop and discuss with the shop owner so that he will give what you need. But it is good to have an idea so you will not buy what you might end up not using.
The Process of Filling the Wall
In order to fix the cracks or hole formed on your wall, you should follow the process described below to the latest to have a smooth wall:
Step one: The first thing to do is to scrap the edges of the cracked wall with a knife, opening up the edges. You might feel that this is increasing the crack but it is essential so that the fillers can be fixed properly on the wall.
Step two: You should then clean the edges by brushing loose materials and sprinkle water on the edges of the cracks.
Step three: Apply the fillers on the crack area of the wall; in a way that you ensure that the edges are smooth.
Step four: You should then allow the wall to dry then extend the fillers as you smooth the walls to at least an inch away from the affected area. This extended area is referred to as the joint compound.
Step five: Allow the area referred to as the joint compound to dry off.
Step six: Then apply sandpaper to the area to get rid of any bumps or swell that may occur in that area and do this as smoothly as possible.
Step seven: Now, extend the area of concentration, this time you are extending the process to about eight inches of the affected area, and then allow it to dry then apply sandpaper.
Step eight: Then apply the last filler as a joint compound to smooth the edges properly, and as the final step, you should be patient in smoothing the edges so as to have a smooth wall.
Applying Putty before Painting
Putty is necessary for damaged wall before they are repainted. It ensures that the wall feel smoother and the paint will be uniform all over the wall. After you have properly fixed the cracked wall or hole formed on the wall, you will need to apply putty not only to smooth the wall, but also to harden the wall and make it durable.
In applying the putty, ensure that:
- The surface of the wall is plastered.
- You should treat the surface fungus and other insects and ensure no leakage.
- Clean the surface properly and make sure it is dust free.
- Use a putty blade or wire brush to wipe out any adhesive material on the surface.
- Wet the wall with clean paper
- Allow the wall to dry then apply the putty.
After the steps above, mix the putty properly, ensuring that no lumps are formed and ensure that you use the mixture as soon as possible. The putty is now ready to be applied to the wall, and use a smooth flat wooden surface to rub on the surface of the wall.