When you have stains on your concrete driveway it s typically best to treat them with the appropriate products before you apply the sealer.
How to remove sealer from concrete driveway.
This process can be dangerous if you are unfamiliar with it.
Always follow the cleaner directions and wear the specified safety gear especially eye protection start by determining what kind of stains you have to find the best concrete cleaner for the job.
Mechanical which consists of grinding blasting or sanding the coating off the surface chemical using a chemical stripper to remove the the coating.
This product and process is applicable to removing surface sealer or cure.
Thin layers of concrete sealer especially water based products can be stripped by using a pressure washer.
You have some variety of choice when it comes to which products you want to use.
Work in sections if the area is large.
Scrape the concrete surface using a paint scraper to remove both the chemical stripper and sealer.
Start by removing any visible peeling and flaking and use a solvent based stripper such as xylene to remove the previous sealer.
You may have heard that it is possible to use muriatic acid to etch your concrete surface.
If concrete was dyed or stained using xylene can damage or change the color of the concrete pressure wash the surface and allow concrete to completely dry.
As an alternative use sand for traction.
This video will show how to remove sealer from a concrete driveway.
The other method to remove sealer from a concrete floor or patio or to remove concrete sealer of any type is chemically.
For best results work on stains while they re fresh.
You should see a rough looking concrete surface as the sealer is coming up.
Using deicers on your concrete driveway in the winter can cause surface damage in the form of scaling and spalling by forcing the thawing and refreezing of moisture.
Do you need to remove tar from your brick or concrete.
How to remove a solvent based concrete sealer.
1 sealgreen scr1600 coatings remover 2 a nine inch roller cover with a one inch or thicker nap 3 plastic to cover walls plants or bushes 4 a pressure washer with a turbo nozzle or a 25 degree quick connect sprayer tip the green tip.
Sealer removal methods there are two methods for removing sealers from concrete.
Over the years we do a lot of this and found this to be the most effective method.
Sealers for concrete driveways may also fail in areas where deicing salts are applied or that receive drip off from parked cars.
The easiest way to remove a concrete sealer is to begin by acid etching the surface of the concrete with muriatic acid.
Mechanical removal one method of sealer removal is to strip the product through a mechanical means.