If you want to remove a sealer from your patio brick, use a hot water power washer.
There, I said it. Nothing more, nothing less. I’ve tried several different methods and, quite frankly, this is the best way to go. If you go to your local rental company on a Friday afternoon, they will usually rent the machine to you for the whole weekend and charge you for just one day. You’ll need a truck to haul it around though. Make sure you use a machine that has at least 3500 psi but you don’t need any more than that.
Here is what my brick looked like after the sealer had turned into an opaque haze:
I tried muriatic acid and it did nothing. I used a sealer remover, which sort of worked, but was so slow, tedious and expensive. Finally, I saw a video about using a hot water power washer and gave it a try. Here are the results:
You can see the difference!!! Spectacularmongo!
The hot water power washer peeled the sealant right off. It was messy and it wasn’t fast but it worked really well. Make sure you wear old clothes because you will get dirty and wet. The gun is hot so wear a long sleeve shirt, plus, steel toed shoes are a MUST. This washer will tear your toes right off.
Now, my brick is back to its original form and I am loving it!