How To Remove Concrete Sealer From Stamped Concrete. Concrete sealer can be removed using chemical based strippers, acid etching or soda blasting depending on the location and size of the concrete surface. The problem is that the previous sealer is flaking off (like paint does).
There are two methods for removing sealers from concrete: You must remove the old sealer if it is different from the new one you wish to apply. This product and process is applicable to removing surface sealer.
Means there was excess moisture in the concrete when the sealer was applied and will not go away.
So i did a little research and found a fairly easy way to essentially strip the sealer from the concrete. How to remove concrete sealer from floors. You must remove the old sealer if it is different from the new one you wish to apply. If the concrete is not tacky or sticky the concrete was sealed with a water based sealer.