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After grouting your tiles, you may see tiny pinholes start to appear. This suggests a weakness in your grouting that could become problematic later. Over time, the pinholes may become larger affecting the integrity of your grout. Fortunately, this is an issue that can easily be fixed. This article will discuss what causes pinholes to appear in grout and what you can do to remedy the situation.

Why are There Pinholes in My Grout?

Pinholes happen when the grout is mixed with too much water. This causes a thin consistency, so the grout is unable to provide full coverage. The mixture pulls apart causing holes to appear.

Contamination can also cause pinholes. If dirt gets into the grout, pinholes can be an issue. Ensure your mixture and surfaces are clean to prevent this from occurring.

How Can I Fix Pinholes in My Grout?

Fortunately, you can fix pinholes in grout without having to completely replace it. Here are the steps you will need to take:

  1. Use water to dampen the areas with pinholes. Wait 5 minutes for the areas to become saturated. Meanwhile, you can start making a mixture to fill the holes. Prepare as directed.
  2. Use your finger to apply the grout. Use a sponge to wipe off excess. Allow a day for the grout to cure.

While this can be an effective solution, some experts say it’s not the best way to deal with this problem. They say it can cause mold issues and it can leave pinholes behind. They see it as a way of putting a band aid on the problem without completely solving it.

Final Solution to Fix Pinholes

They feel the best way to say goodbye to pinholes once and for all is to take out the old grout and add new grout. To do this you will need to:

  1. Use a sharp object to dig out the old grout being careful not to scratch the tiles.
  2. Clean the area with denatured alcohol or a 1:1 vinegar and water solution and a brush. Scrub the area to make sure it is free of dirt and allow to dry.
  3. Mix the grout ensuring there is not too much water this time. It should have a peanut butter-like consistency. Add the water a little at a time so you don’t overdo it.
  4. Apply the mixture with a grout float. Press the float on the grout line at a 45-degree angle. Then move it at various angles to ensure adequate coverage. Use the float to remove excess grout.
  5. Allow grout to sit for 10 minutes. Then clean off excess with a damp grout sponge. Let it cure for 24 hours.
  6. Seal the grout to keep it safe from dirt and water.

Pinholes are a sign that your grout’s integrity is compromised. Fortunately, there are ways to deal with pinholes that range from a simple touchup to a complete redo. Which route will you be taking when you see these small holes appear?
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