If desired you can test the sealer by dripping a small amount of water onto the surface of the brick.
How to remove sealer from brick floors.
Mechanical which consists of grinding blasting or sanding the coating off the surface chemical using a chemical stripper to remove the the coating.
How to remove sealer from concrete floors with chemicals.
Once the bricks dry clean them with phosphoric acid.
Use a wire bristle brush to remove any stubborn areas.
5 paint the sealer onto the brick beginning on one side and working toward an exit.
To use a concentrated degreaser follow the instructions on the label of your selected product.
Sand until the brick appears dull.
Leave the stripper on the tiles until it begins to bubble.
Scrape the sealer and solvent off of the floor and discard into a metal bucket.
To use mineral spirits wipe the spirits over the area with a cloth.
The mechanical way involves using some kind of tool to physically grind sand or blast away the sealer.
This will help remove any leftover residue and condition the surface of the bricks so the polyurethane adheres properly.
Skip this step if the floor is unsealed.
This method can be noisy and damaging to the concrete.
Dip the roller into the sealer in the tray and roll it up the tray grate to remove excess sealer.
Steps to remove the sealant.
Just be sure to work with lots of ventilation and take frequent breaks.
You ll need stiff metallic brushes and rags.
The removal of old concrete sealer can be done in one of two ways.
Load the sandpaper into a palm sander to ease the process.
If you plan on resealing the pavers it is best to remove as much as possible of the old sealer.
There can be significant scratching or damage sustained during the process of mechanically removing sealer.
If the water beads up you have successfully sealed the brick.
If needed spot strip any areas that did not come clean after the first attempt.
Sealer removal methods there are two methods for removing sealers from concrete.
Remove sealer from the brick floor by sanding it with 120 grit sandpaper.
If the water soaks into the bricks clean and dry the floor then apply a second coat of sealer.
When finished wash the bricks with mineral spirits.
Allow the floor to dry completely.