Grout sealer is a liquid based substance which is applied to grout found in the gaps of tiles to hold them together. Grout sealing at least once a year ensures that the grout and tiles are protected from common issues such as mould, staining, and tile, grout and structural damage.
It is a reasonable question to ask – why seal grout? Grout sealing is necessary in order to maintain your home’s:
- Longevity of the tiles and deeper structure
- Overall appearance
Grout is made up of cement, water, and sand which is overall a generally porous makeup. This means that it has a high absorption rate of liquids and other materials. Bacteria, moisture and dirt are absorbed into the grout which causes mould and staining. This exposes it to further risks such as mould retention and structure erosion. For this reason, grout needs a protective layer to keep out excess liquids and dirt.
Without grout sealing, moisture from water exposure can build up and penetrate deeper into the grout and tiles over time. This may call for an entire reconstruction as the grout can corrode, tiles become damaged, and/or mould will have penetrated and stained the area so much that the entire structure needs rebuilding. Reconstructing the entire area isn’t ideal, which is why grout sealing is used as a very helpful barrier to these problems.
We recommend grout sealing whenever you install new grout or regrout. In some cases when asked, ‘can you seal over grout?’, the answer would be to check the level of grout damage: because sometimes it needs to be replaced first.
If you’re wondering whether to seal grout in the shower, bathroom, and kitchen areas, the answer is yes–but areas such as living room floors are exposed to less water and won’t need it as regularly.