If you haven t neutralized the stained concrete areas you can accomplish that with a solution of baking soda and water.
Can sealed concrete be stained.
Begin by removing all items from the floor and cleaning the area thoroughly.
Rather in between damp.
If your concrete has been sealed you ll need to remove the sealer before staining.
Concrete stain is a water based product that coats the concrete and becomes a permanent part of the surface.
Most concrete sealers used on acid stained concrete are either solvent or water based acrylics.
How much traffic the surface receives often dictates the amount of ongoing maintenance required.
There are others like epoxies urethanes and polyaspartics but for the most part acrylic based sealers are used to seal acid stained concrete.
To remove concrete sealer pour on xylene also known as xylol or touline onto the concrete and let sit for 30 seconds or so then scrub with a stiff straw brush.
Typically it is the material of choice for driveways patios and other exterior floors or surfaces.
The stains can fade and wear over time but sealer helps protect them.
Solvent base sealers tend to over darken concrete stain looking as it does when saturated wet with water.
What is concrete stain.
While protecting stained concrete with a sealer or floor finish will repel dirt and help prevent wear it does not eliminate the need for periodic maintenance.
By dale keese.
Sweep and mop to remove all dust dirt and debris as these will show through the stain and can impact the finished look.
The most important step of how to stain a concrete floor is surface preparation.
How to clean sealed concrete floors.
Remove old acid stain with a concrete stripper if you want a bare base.
Concrete stains are different from acid or etching stains which chemically react with minerals in the concrete to change the color.
Remove the sealer with a solvent before attempting to stain the surface.
Then use a painter s shield to scrape the sealer into a pile and remove with a square point shovel.
However you need to make sure the areas you ve acid stained are ph neutral before any type of sealer is applied.
Use a caustic concrete stripper to remove all of the dirt oil and acrylic residue before attempting to stain the concrete.
However even inside the house it can be used to construct floors because removing stains and blotches off concrete floors is far easier.
Staining contractors recommend that concrete be allowed to cure for 28 to 30 days before applying stain.
Water base sealers such as clear shield makes the concrete look as it does when damp with water not saturated wet but not dry either.
Because of the difficulty in removing curing agents it is not recommended that you apply these if you plan to stain the slab.
One of the primary reasons concrete is a popular material for constructing floors is that it is durable and low maintenance.
Answer from concrete decor you can seal acid stained concrete with virtually any type of concrete sealer.