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The location and size of the crack are important things to consider when looking for the right filler.
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And it’s waterproof and resistant to shrinking or cracking.
you’re able to sand it as well, if necessary.
If you have a lot of cracks to fill, you could also buy this sealant in a29-ounce tube.
PHOTO: Sika
It bonds completely to the concrete and won’t wear down, shrink, or crack over time.
After that, it’s ready for you to paint or sand it, if desired.
Using the product is a little more complicated than a ready-to-go patch, but the results are worth it.
PHOTO: Rust-Oleum
This is a two-part product that you’ll need to mix right before use.
One 24-ounce box covers up to 14 linear feet.
It dries to a concrete gray color but can be painted once it’s dry if you’d like.
PHOTO: DAP
The 32-ounce bottle will cover roughly 90 linear feet.
It seals out moistureeven leaksas well as dust, insects, mold spores, andharmful gases like radon.
The kit contains everything you need except for a standard caulking gun.
PHOTO: RadonSeal
While the process seems a bit complex, it’s well within the range of the average DIYer.
Once inside the crack, the polyurethane foam forcefully expands to fill every bit of the crack.
The kit contains enough ingredients to fill up to 10 feet of cracks.
PHOTO: Sika
It’s ready to go; no need for mixing or stirring.
Just apply with a trowel until you’ve filled the gap.
It dries to a slightly textured finish that blends in very well with concrete or mortar between bricks.
PHOTO: Sika
Once cured, itcan be paintedif desired.
While it holds up very well to normal weather conditions, it is not waterproof, however.
you’re free to also drive over it once cured.
PHOTO: Drylok
It can tolerate temperature extremes from 40 below zero to 170 degrees.
However, it’s best used only for horizontal cracks.
you’re able to use this to fill both vertical and horizontal cracks.
PHOTO: Latex-Ite
It can take up to two weeks for a full cure, however.
The sealant dries to a very light gray.
Due to the fast cure time, you do need to work quickly.
PHOTO: Quikrete
Once mixed, work the product into cracks or holes with a trowel or putty knife.
Smooth it over as you work for an even finish.
It’s very hard and durable once it’s cured.
PHOTO: Sashco
Note that Fast Plug is best for cracks and holes that are fairly large, not for hairline cracks.
It bonds very tightly to the concrete, so you could expect it to last for years.
That justifies its price, which is higher than many other crack-repair products.
PHOTO: Bluestar
You might need to usea screwdriveror another object to wedge it into the crack.
One roll of the product can repair up to 60 feet of cracks.
While weather-resistant, it is not waterproof.
You apply this sealer with a caulk gun.
Be sure the crack is dry and free from debris and dirt before filling it.
Once applied, the sealer begins to set within a few hours.
It even remains stable through freeze/thaw cycles.
This tends to crack or displace crack fillers that dry very hard.
It can take up to a week or more to fully cure, though.
Once cured, you’ve got the option to paint over the gray color if desired.
The cure time is 24 hours in good weather, longer if it is very humid or cold.
It should be applied to dry concrete and on horizontal cracks only.
After it’s fully cured, it can beused on drivewaysor garage floors with vehicle traffic.
you might also paint it if you don’t like its gray color.
Youll usually find the cure time listed on the product packaging.
Generally, any filler will resist moisture from rain or snow.
Rerdeim 5-Piece Putty Knife Set: Depending on your filler, you’ll need a high-quality putty knife.
We also love how comfortable it is to hold, and the built-in stand is an added plus.
One More Thing
Generally, you’re able to repair a simple concrete crack yourself.
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This article was researched and written byMichelle Ullman, a writer specializing in home and garden products.
