Answer
Aug 15, 2019 - 01:44 AM
Our GBS Penetrating Concrete Sealer would be a much better choice. It is a penetrating sealer that will block strengthen the brick and mortar so that it does not dust. It will stop efflorescence, spalling and moisture intrusion. It comes with a 15 year warranty against moisture. Assuming that your brick is porous and has not been previously sealed, one gallon will cover about 200 SF. It usually requires several coats to saturate the brick and mortar. It can be rolled or sprayed. It does not change the surface at all.
