This is because any old sealer left on the surface of your concrete can impede the effectiveness of the newly applied sealant preventing proper adhesion to the concrete surface.
How to remove sealer from concrete garage floor.
Since most garage floors are made from concrete and are as hard as stone many people have the mistaken belief that concrete garage floors are maintenance free.
How to remove a concrete sealer.
All sealers and cures have to be removed before concrete stain or new.
Sealing your concrete garage floor is the best way to prevent damage from road salt and freezing temperatures.
With so many concrete sealing waterproofing products on the market choosing the right product can be confusing.
Cut out a 3 ft x 3 ft square of plastic sheeting and tape it down completely to your garage floor.
If after a day or so water collects on the underside of the plastic you ll need to put down a good vapor barrier before the primer coat.
How to remove concrete sealer from floors before applying a new sealer it s very important that you make sure the old one is completely gone.
Unfortunately it s often the only way to prepare restore or repair a concrete surface.
The easiest way to remove a concrete sealer is to begin by acid etching the surface of the concrete with muriatic acid.
The sealer penetrates the porous concrete and prevents stains from seeping deep into the concrete.
Removing sealer from a garage floor is not easy but it is essential in order to create a proper base for other.
Even though it seems to be solid as stone it really isn t.
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.
In its place will stand a fresh slab of concrete ready for a new application of concrete sealer.
Over time the sealer wears thin or other surface coatings may be more appropriate for the type of use and wear by the homeowner.
Moisture test if you think that moisture issues might prevent paint or sealer from bonding here s a simple way to find out.
There are two methods for removing sealers from concrete.
In fact the concrete in a garage is often permeable so moisture can work its way into the seemingly solid mass and.
To get the scoop on choosing the right sealer we contacted dave barnes.
How to remove a solvent based concrete sealer.
Start by removing any visible peeling and flaking and use a solvent based stripper such as xylene to remove the previous sealer.
The acid etching process will remove the old concrete sealer completely from the concrete slab.