But it is best not to use, the use of water under normal conditions and these two kinds of things can be caustic clean silicon, 100% recycled mortar is not the problem, but this requires tens of thousands of cost and appropriate design, I am clean
It is very difficult to clean, there are organic residues, this cleaning method is remedial method, belong to after the remedy, the cost is slightly higher
Because of the use of sand when the recovery of mortar used too much, resulting in increased viscosity and organic impurities
