When do you need to remove old grout before applying new grout?
Many people think that in order to apply new grout, the old grout needs to be removed first. However, this is not always the case. Depending on the condition of the old grout, you may be able to simply apply new grout over the top of it. This can save you a lot of time and effort, so it’s worth doing a test patch in an inconspicuous area before moving forward with the project.
Removing Old Grout
In general, you should only remove old grout if it is severely deteriorated or stained. If the old grout is in good condition, you may be able to replace it with new grout. To remove old grout, you will need a few tools including a utility knife, a putty knife, and a screwdriver. You may also need a respirator if the area to be worked on is large. First, use the utility knife to score the surface of the old grout.
Next, use the putty knife or screwdriver to remove the scored grout. Be sure to work carefully so as not to damage the tiles. Once all of the old grout has been removed, vacuum or sweep up any debris and then wash the area with soap and water. Allow the area to dry completely before proceeding.
Applying New Grout
To apply new grout, you will need a few tools including a mixing bucket, a rubber float, and a sponge. You will also need enough grout for the project area. Follow the instructions on the package of grout mix to prepare the mixture. Once the mixture is ready, use the float to apply it evenly over the surface. Work in small sections so that the grout does not dry out before you have a chance to smooth it over. Use the sponge dipped in water to smooth out any rough spots and then allow the area to dry completely according to package instructions before using it again.
Whether or not you need to remove old grout before applying new depends on several factors including the condition of your current grout and how big of an area you are working with. In general, you should only remove grout ifit is seriously deteriorated or stained beyond repair.