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How to Apply Grout Sealer – Ultimate Guide for Beginners

How to Apply Grout Sealer – Ultimate Guide for Beginners
Last Updated: 09 April 2019

Applying Grout Sealer – Good Job without Mistakes

Tile installation has plenty of nuances but sometimes people think that the basic stages are the most crucial and neglect the final stage – applying grout sealer. To clarify the nuances, let’s start with the definition – what is grout sealer? First, a substance contains sand, water, and other liquids. It comes in handy when it is necessary to fill small distances between tiles that are called seams. Plenty of manufacturers offer this product on the market, so, you can read grout sealer reviews to choose the most appropriate item.

Main Types of Grout Sealer

The first thing you should know is that there are different types of grout sealers. If you have an unglazed tile, use a membrane-forming product. It’s also popular for applying to floor tiles. However, this type of sealer make the floor cleaning a challenge because they’re hard to dry. Penetrating type lacks this issue and it is made as silicone or latex composition to minimize absorption of moisture and stains.

How to Apply Grout Sealer Fast and Accurately

Now, let’s deal with the tips on how to apply grout sealer hassle-free. Note that the solution is applied in 2 coats.

  1. Check the grout applied to make sure it is dried and clean (no debris is permitted).
  2. Check the lines (seams) to see that they’re even and have no damages.
  3. Remove all the excess grout outside the seams with the aid of a wet piece of cloth.
  4. Use sponge, brush, grout sealer applicators, or a spray-on variant (depends on the product) to apply a sealer.
  5. Try to make smooth and even coverage and not to miss any joint. Follow left-to-right or your own pattern to get a systematic approach that ensures full coverage.
  6. Remove the excess sealant with the wet rag from every tile. Only after you’ve cleaned one tile, you can move on another one.
  7. Use buffing with the aid of cheesecloth if the solution got dried before you’ve wiped it.
  8. Let the first layer dry for an hour (check the manufacturer’s instructions to see a more accurate period).
  9. Start applying the second coat. The procedure is identical to the steps described above.

How to know whether it is dried or not despite the terms marked on the bottle? It is possible to do it only empirically. Just squirt water on the tile to see water’s beading. That means the job is done. If you can’t see this effect, most likely, you should apply one more coat.

If you want to make the procedure in the bathroom, special shower grout sealer is required that is originally porous and absorbent. It is available as a water- or solvent-based mixture and implies yearly alliance to keep avoid mold and mildew in the bathroom.

Some people are interested in whether it is necessary to use the mixture in any cases. Yes, it’s really so, but one exception exists. If you used epoxy-based grout, the sealer is not needed because such kind of grout sheds water in a natural way. However, most of the repairmen still prefer to use grout sealer because the epoxy-based products cost much and are tricky to mix and apply.

Ways of Application

We’ve already mentioned above in brief about methods of application. Let’s deal with some details to let you get rid of mistakes. For example, brushes are suitable if the mixture is milky. In this case, note that the sealer should be applied on the brush but not on the tile.

Rollers are very easy to use and they allow keeping moving down the seam line without substantial efforts. Applicator tips are designed for filling in seam lines but you can use sprays for the rest of the area. They’re more expensive because of the highest level of comfort they give but you’ll have a lot of cleaning in the end. You can choose any way to handle a job but the main thing is to choose high-quality certified products.

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