What happens if you don't seal stained concrete?

Author: Kaylee Spencer  |  Last update: Sunday, July 30, 2023

Sealing an outdoor decorative concrete project is the best way, and as far as we know the only way, to minimize color changes from the sun's UV rays. An unsealed, decorative stained concrete surface will show faded colors in a matter of a few months.

What happens if concrete is not sealed?

Outdoor concrete sealers are not only worthwhile but necessary. Experts who recommend having a concrete surface sealed are doing their customers a big favor. Without this extra layer of protection, concrete will absorb moisture and may begin to crack, spall, flake, and discolor, among other things.

How often does stained concrete need to be sealed?

Sealing your concrete isn't really a labor-intensive, nor costly, job. By sealing your concrete every 2-5 years, as recommended by experts, you should keep your floor in good shape, preventing cracks, pitting, and additional damage.

What happens if you don't seal concrete floor?

An unsealed concrete floor is going to be more reactive and sensitive to changes in temperature. It will freeze in cold climates and expand in warm ones. This can cause crumbling, chipping, and cracking.

Is unsealed concrete safe?

If the concrete floor surface is left unsealed, its porous layers will emit tiny objects that endanger one's health. Not only will it put one's health in peril, but it's also the floor itself that will face various damages.

Why I Don't Like Acid Stained Concrete

Can you seal concrete years later?

A: Yes! Old concrete can be sealed for the first time or resealed if it has been previously sealed with a concrete sealer. Before sealing old concrete you want to make sure you determine if the concrete has been previously sealed.

Is it too late to seal concrete?

It's Never Too Late …

Sealing your garage floor might not be possible if you have moisture in your garage. This is typically the only scenario where we don't recommend sealing right away, mainly because you should deal with the cause of the moisture first. It could be due to a plumbing leak or a drainage issue.

Can you stain concrete and not seal it?

Sealing an outdoor decorative concrete project is the best way, and as far as we know the only way, to minimize color changes from the sun's UV rays. An unsealed, decorative stained concrete surface will show faded colors in a matter of a few months.

Why not to seal concrete?

If you have cracks in your concrete, sealing won't do anything for those. You'll expend money and effort on something that you might rather replace before too much longer. Sealers fade. The seal on your concrete will fade over time, especially in high-traffic areas.

What happens if you don't seal colored concrete?

Leaving concrete unsealed will leave it with a flat look. The color will remain flatter and dull, in addition to the concrete remaining porous and easier to damage. Sealing the concrete will enhance the colors and give it more of a marble or mottled look, smoother and with richer colors.

Is stained concrete high maintenance?

Stained concrete can be an excellent choice for your residential house. Due to light foot traffic experienced in residential stained floors, a simple cleaning may renew their fresh look for many years.

What is the best sealer for stained concrete?

One of the very best sealers on the market today for acid-stained concrete and other types of decorative concrete flooring is the "polyurea". Polyurea is extremely durable, long-lasting and easy to maintain. Most clear sealers for concrete come in water and solvent-based versions.

Can you leave concrete floors bare?

If you are pouring concrete floors in any type of warehouse or heavy commercial setting, leaving them bare is asking for trouble. Vehicle traffic, chemicals, temperature changes, and other common industrial impacts can quickly damage bare concrete floors. If appearances are a concern, bare concrete is the wrong choice.

Should concrete be sealed or unsealed?

Concrete can be described as a hard sponge that soaks up oil and water-based spills. Easily marked by tires and outdoor elements, it is important to seal the surface, so it looks beautiful year-round. The other benefit to sealing concrete is improved cleaning and maintenance.

Can you seal concrete after its cured?

Concrete sealer is a protective barrier that gives longevity to concrete and makes cleaning easy. If your concrete is new, you'll need to let it cure; wait at least one month before applying sealer.

Does sealing concrete make it look better?

Sealing concrete also enhances its appearance, giving it a much smoother and better-looking surface, which ultimately increases the value of your property. Overall, there are numerous advantages that come with properly sealing your concrete surface - not least of which is time saved on costly repairs!

Does sealing concrete make it smooth?

As we noted earlier, concrete sealers produce a very smooth surface on top of the concrete once it has fully cured, which gives your driveway valuable resistance to water, oil, and stains.

Does sealing concrete keep it from cracking?

Can Sealing Prevent Cracks on Concrete Surfaces? Concrete sealing can stop most types of concrete fractures. This fact is especially true if the crack is a result of poor-quality work in the concrete mix or site preparation. However, sealing can prevent future damage that may start from the top layer of the concrete.

What are the cons of concrete stain?

Cons of Outdoor Concrete Staining

Transparent: The semi-transparency of most stains will fail to hide the existing imperfections in the concrete surface. DIY is not easy: Staining concrete is the not the easiest job for the amateur weekend warrior. Using a professional contractor ensure best results.

Can you put sealer over stained concrete?

You may need to apply multiple coats to achieve the desired color intensity. After the stains have dried, you'll want to protect your newly-colored concrete with a sealer. This will help to protect the concrete from wear and tear and extend the life of your color transformation.

Is stained concrete easy to maintain?


Acid-stained concrete is easy to maintain and will last indefinitely. You just need to follow several basic principles: Dust mop or broom sweep weekly to prevent dirt accumulation. Damp mop monthly to remove smudging, scuffs and water marks, and to restore gloss.

What time of year is best to seal concrete?

After discussing the factors you need to look for and the regional location of the project, in broad terms, Spring is in fact the best time of year to seal concrete. With its moderate temperatures and humidity levels, it tends to provide ideal conditions for the application and curing of sealers.

Why do you have to wait 30 days to seal concrete?

The excess moisture that is still present after a new driveway installation needs to completely evaporate before you seal the concrete. This evaporation is known as the curing process. As a rule of thumb, it takes approximately 28 days for new concrete to seal.

What time of day is best to seal concrete?

During the late afternoon, any moisture present from condensation or morning dew will have evaporated off during the day. Also, both the surface temperature and air temperature are declining, creating a more favorable environment for concrete sealers to properly bond to the substrate and cure.

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