It needs to cure for at least a month and preferably 2 months before you get down to the business of sealing a concrete driveway.
Can you seal old concrete driveway.
After the concrete has dried for at least 24 hours you can effectively apply a concrete sealer.
A sealer helps prevent future stains and potential damage from products like ice salts.
You can not seal a newly constructed driveway.
Old concrete can be sealed for the first time or resealed if it has been previously sealed with a concrete sealer.
Applying a concrete sealer is an easy project for a diyer and it will keep your concrete slabs looking good and potentially lasting longer.
Read this guide for tips on the best sealers to use and how to seal a driveway to maximally preserve its structure and appearance.
If a previous sealer has been used you want to make sure it is removed by acid.
Concrete driveway sealers are applied every few years and concrete driveways can last for 50 years.
The period of curing essentially provides the concrete time to absorb moisture and heat which helps the concrete gain strength and last longer.
Concrete is long lasting and durable without any special treatment but the building material is not good at resisting stains and marks as it ages.
Step 2 apply the sealer.
Sealing old exterior concrete.
Can you seal old concrete.
This is especially true if you have a stained or etched concrete driveway or patio or if you live in an area where winter road salt can eat away at the concrete.
It is extremely diy friendly and is easily applied.
Newer concrete might already have a sealer that s still in good condition.
Some sealers leave the surface with a shiny finish while others have a matte finish.
Before sealing old concrete you want to make sure you determine if the concrete has been previously sealed.
Spray roll or brush the sealer onto the driveway.
The average cost of a concrete driveway sealer is about 0 50 per square foot.
Use the tool you prefer but keep in mind that a roller applies the sealer faster than a brush and a garden sprayer is faster than a roller.