Fill the hole with expanding foam and leave to dry overnight. Use the utility knife to carefully cut away excess foam leaving about a 3mm depth below the surface for the next step. With the putty knife, smooth the multipurpose filler over the hole, taking time to get a good finish and let it dry.
How to Fix a Crack in a Hollow Door?
Cracks in hollow doors can be a nuisance, and they can also be a sign of structural damage. Fortunately, they are usually easy to fix and don’t require a complete door replacement. Here is a guide on how to fix a crack in a hollow door.
First, you’ll need to assess the crack. If it’s longer than a few inches, then you’ll need to fix it from the inside of the door, not from the outside. If it’s a small crack, then you can fix it from the outside.
If you’re going to fix the crack from the inside, you’ll need to remove the door from its hinges. You may also need to remove the door stop if it’s in the way.
Once the door is removed, you’ll need to clean the area around the crack. Use a damp cloth or a soft brush to remove any dirt or debris.
Next, you’ll need to apply a wood filler to the crack. Make sure to read the instructions on the product to determine how much filler to use. If the crack is deep, you may need to use