This will get rid of the dust accumulated on it.

For those who first encountered such work, one should not forget that the fireproof brick, before laying, should be rinsed in clean water. This will get rid of the dust accumulated on it. As for the seams, it is recommended to make them as thin as possible, with particular thoroughness to fill with a solution, the excess of which must be removed. Remember that the trimmed or chopped surfaces facing the masonry can lead to early destruction of brick.