How Do You Seal Old Concrete?

What is the best sealer for concrete?

Epoxy concrete sealers are the most durable, making them good for sealing garage floors and high-traffic retail environments.

Softer acrylic sealers, which require a sacrificial floor wax, are more affordable and popular for residential concrete floors, including basements..

How often should concrete be sealed?

five yearsSealing the driveway yearly can lead to unsightly hairline cracks and peeling. And concrete driveways should be sealed every four or five years to protect them from water penetration and to prolong their life. Many people believe that concrete driveways don’t need maintenance, so they may never apply a sealer.

Is driveway sealing worth it?

Kindler said sealing helps prolong the life of a driveway and should be a regular part of home maintenance. “If you seal-coat a driveway or a highway, the surface will last longer,” said Kindler, who teaches a pavement class at Ohio State University. “I would recommend doing it about every three years on a driveway.”

Should I seal my concrete driveway after pressure washing?

One way to keep your concrete driveway, walkway or walls looking good is to wash them and seal them every 2 to 3 years. … Sealer also helps prevent stains from setting in on the concrete. Sealing concrete after pressure washing is similar to painting walls in your house.

Does concrete need to be sealed?

In other regions, concrete should be sealed for specific purposes such as stain repellence, dust reduction, abrasion resistance, chemical resistance or to maintain an attractive appearance. What happens if I don’t seal my concrete? Concrete is a porous material that readily absorbs liquids.

Is it better to spray or roll concrete sealer?

“Certain sealers are better applied by spray because they are not formulated for rolling,” says Dean Owen, president of Arizona Polymer Flooring Inc. in Glendale, Ariz. “This is usually a function of the solvents used in the formulation. Slow-evaporating solvents are better for rolling.

How much does it cost to seal a concrete driveway?

Concrete sealing costs an average of $2,148. Most jobs will cost between $1,427 and $2,950. Materials and equipment alone will cost you $2 to $5 per square foot. Expect to pay a pro another $1 to $7 per square foot for labor.

Does concrete sealer go bad?

The effective shelf-life of a one-part product is generally two to four years, though some experts recommend using the sealer up within 18 months to two years. … Do not store an activated two-part sealer.

How many coats of sealer can you put on concrete?

Two coatsHow many coats should I apply? Two coats are always suggested because the first coat of any concrete sealer is usually absorbed into the concrete at different rates leaving the substrate unevenly sealed. A second coat will ensure proper even coverage.

How long after sealing concrete can you walk on it?

Typically, it can take anywhere from 10-12 hours to dry before being able to be walked on, but they will continue to harden for up to 48 hours after being applied. Concrete sealed with a urethane coating should not be walked on (with the exception of a recoat), driven on, or wet for at least 36-48 hours.