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Best Way to Seal Gaps in an Exposed Brick Wall?

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(@deron1987)
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Joined: 2 months ago
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Hi everyone, I’ve got an exposed brick wall in my kitchen, and I’ve noticed some small gaps and cracks between the bricks and mortar. I want to seal them up, but I also want to keep the rustic look of the wall.

What’s the best way to fill these gaps without ruining the aesthetic? Should I be using a clear sealant, or is there a specific type of mortar or filler that works better for this? Any tips would be really appreciated. Thanks!


   
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(@buddyon)
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Joined: 2 months ago
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an exposed brick wall in the kitchen can look brilliant, so it’s worth doing it right to keep that rustic charm. For small gaps and cracks, you’ve got a couple of options depending on the look you’re after.

If you want to stick close to the original aesthetic, a lime-based mortar or a ready-mix brick repair mortar in a colour that matches the existing one is your best bet. You’ll need to rake out the loose bits of old mortar first—don’t go too deep, just enough to get a clean surface for the new stuff to bond to. Use a pointing trowel to fill the gaps and shape it neatly. This keeps the natural look while sealing it up properly.

If the gaps are really tiny and you don’t fancy re-pointing, a clear masonry sealant can work. It’s great for stopping drafts and moisture without altering the appearance too much. Just make sure it’s breathable so it doesn’t trap moisture inside the wall.

Whatever you do, avoid standard silicone—it’s too modern and shiny for the rustic look, and it won’t bond well to brick. Also, give the wall a proper clean before starting; dust and grime can mess up adhesion.

If you’re sealing near the kitchen hob or sink, check that whatever you use is resistant to heat and water splashes. A light misting of water before applying the mortar can help it stick better, especially on older, drier bricks.

Let me know how it goes! Would love to see the wall when it’s sorted.


   
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